Trojan.Win32.Zpevdo.A_44be20f381

by malwarelabrobot on June 19th, 2018 in Malware Descriptions.

Trojan.GenericKD.30981062 (BitDefender), Trojan:Win32/Zpevdo.A (Microsoft), Trojan.Win32.Bicololo.bifo (Kaspersky), Trojan.DownLoader26.49573 (DrWeb), Trojan.GenericKD.30981062 (B) (Emsisoft), Artemis!44BE20F381B5 (McAfee), ML.Attribute.HighConfidence (Symantec), Trojan.SuspectCRC (Ikarus), Trojan.GenericKD.30981062 (FSecure), Win32:Malware-gen (AVG), Win32:Malware-gen (Avast)
Behaviour: Trojan, Malware


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

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Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: 44be20f381b5adf35f80b7f450ca053f
SHA1: 4177ab2fb10633e98f096b5f2399d9d7da9f33fa
SHA256: aca8ff514ba5ba00e4ec12a3c10e9c68711c505df047101a5b92004488c9ae8c
SSDeep: 12288:lLo9y90GhA3JAgsXV5uU9C8EvW17f4R8K9bf0rPxp/e2nCS3p2ahEp:yyrauRuU9HEvW17fC8KFf0rPx4Op23p
Size: 885248 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: BitTorrent Inc.
Created at: 2009-07-14 02:42:43
Analyzed on: Windows7 SP1 32-bit


Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

certutil.exe:3628
certutil.exe:2696
certutil.exe:1800
%original file name%.exe:1776
run.exe:1064
dist.exe:3452
regedit.exe:536
2dREb.exe:3544

The Trojan injects its code into the following process(es):
No processes have been created.

Mutexes

The following mutexes were created/opened:
No objects were found.

File activity

The process certutil.exe:3628 makes changes in the file system.
The Trojan deletes the following file(s):

C:\Windows\cer62E9.tmp (0 bytes)

The process certutil.exe:2696 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\2dREb.exe (36 bytes)

The Trojan deletes the following file(s):

C:\Windows\cer63A5.tmp (0 bytes)

The process certutil.exe:1800 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\iIgxIX4.pfx (2 bytes)

The Trojan deletes the following file(s):

C:\Windows\cer6337.tmp (0 bytes)

The process %original file name%.exe:1776 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\run.exe (1 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\dist.exe (31604 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP (4 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\ww.exe (22079 bytes)

The Trojan deletes the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\dist.exe (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\run.exe (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP (0 bytes)

The process run.exe:1064 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\dist.exe (49 bytes)

The process dist.exe:3452 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\YGxlSXPtL.vbs (146 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\rpMCARCr.vbs (178 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\rr.vbe (2 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\BPh71Ye.vbs (146 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\B6kzM.vbs (146 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\QF69AzB.vbs (505 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\MeAjSWf.vbs (126 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\EDNhm3so.vbs (178 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\ww.bat (62 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\hVOfo.vbs (505 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\F6cI6NX8.vbs (505 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\ax3CF.vbs (126 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\YdD3ojxS.vbs (126 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\Tiizs2t.vbs (146 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\xRrJBdT.vbs (146 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\k8R6BEuZM.reg (633 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\DCdJOyapn.vbs (126 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\crgRY.vbs (178 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\ww.json (201 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\qPTGfRyil.vbs (178 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\hoZYFYZ.vbs (178 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\2dREb.txt (7071 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\YFOGK.vbs (178 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\sa1xVPfv.vbs (126 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\BDKsMla.vbs (505 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\TXC1O.vbs (126 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\SqWy6yhK.vbs (505 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\zdGc81.vbs (146 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\uieao.crt (1 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\rAQBc8.vbs (505 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\iIgxIX4.txt (4 bytes)

The Trojan deletes the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\YGxlSXPtL.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\rpMCARCr.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\crgRY.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\BPh71Ye.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\B6kzM.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\QF69AzB.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\MeAjSWf.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\EDNhm3so.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\hVOfo.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\F6cI6NX8.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\ax3CF.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\YdD3ojxS.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\Tiizs2t.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\xRrJBdT.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\k8R6BEuZM.reg (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\DCdJOyapn.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\BDKsMla.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\qPTGfRyil.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\hoZYFYZ.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\2dREb.txt (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\YFOGK.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\sa1xVPfv.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\2dREb.exe (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\TXC1O.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\SqWy6yhK.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\zdGc81.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\uieao.crt (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\rAQBc8.vbs (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\iIgxIX4.txt (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\iIgxIX4.pfx (0 bytes)

The process 2dREb.exe:3544 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-732923889-1296844034-1208581001-1000\4d6629d6a7d5185ca5557446b928cfd8_88dcd395-b062-45b3-a6cd-79f37c0eba08 (87 bytes)

Registry activity

The process certutil.exe:3628 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\620AD32A386853E5BC0F76E7EFA86444DB4E0129]
"Blob" = "03 00 00 00 01 00 00 00 14 00 00 00 62 0A D3 2A"

[HKCU\Software\Classes\Local Settings\MuiCache\63\52C64B7E]
"LanguageList" = "en-US, en"

The Trojan deletes the following value(s) in system registry:

[HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates]
"620AD32A386853E5BC0F76E7EFA86444DB4E0129"

The process %original file name%.exe:1776 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
"wextract_cleanup0" = "rundll32.exe C:\Windows\system32\advpack.dll,DelNodeRunDLL32 C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\"

The Trojan deletes the following value(s) in system registry:
The Trojan disables automatic startup of the application by deleting the following autorun value:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
"wextract_cleanup0"

The process regedit.exe:536 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Policies\Google\Chrome\ExtensionInstallForceList]
"1" = "ocinjdjondmhheihhgkbmjkofmomnppd;https://clients2.google.com/service/update2/crx"

[HKLM\SOFTWARE\Policies\Google\Chrome\ExtensionInstallWhitelist]
"1" = "ocinjdjondmhheihhgkbmjkofmomnppd"

[HKLM\SOFTWARE\Google\Chrome\NativeMessagingHosts\com.ww.fm]
"(Default)" = "C:\Users\"%CurrentUserName%"\AppData\Roaming\ww.fm\ww.json"

The process 2dREb.exe:3544 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates\D4A090F7C4B9D22E9BFD1D2E991CF938A79458E4]
"Blob" = "03 00 00 00 01 00 00 00 14 00 00 00 D4 A0 90 F7"

The Trojan deletes the following value(s) in system registry:

[HKLM\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates]
"D4A090F7C4B9D22E9BFD1D2E991CF938A79458E4"

Dropped PE files

MD5 File path
aeea9d090117d63ad4d63bcc2c3e0b9c c:\Users\"%CurrentUserName%"\AppData\Roaming\ww.fm\ww.exe

HOSTS file anomalies

The Trojan modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses.
The modified file is 905 bytes in size. The following strings are added to the hosts file listed below:

127.0.0.1 validation.sls.microsoft.com
104.251.211.173 clients2.google.com


Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

Company Name: Microsoft Corporation
Product Name: HD Player
Product Version: 8.00.7600.16385
Legal Copyright: (c) Microsoft Corporation. All rights reserved.
Legal Trademarks:
Original Filename: WEXTRACT.EXE .MUI
Internal Name: Wextract
File Version: 8.00.7600.16385 (win7_rtm.090713-1255)
File Description: Win32 Cabinet Self-Extractor
Comments:
Language: English (United States)

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 43748 44032 4.53606 3aeb6fb8fe8ab95f2462e3afb8b8acd3
.data 49152 8796 1536 4.57321 f3764284f4d25ed35f75b9c16e1ab608
.rsrc 61440 835584 835072 5.50589 6499b658b20ef0e8785d898aa9d59e6f
.reloc 897024 3480 3584 3.33168 bc74eb2a181cf1029262828db6ac5b5d

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

URL IP
hxxp://185.148.147.134/trk/e0


IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

The Trojan connects to the servers at the folowing location(s):

Strings from Dumps were not found.


Remove it with Ad-Aware

  1. Click (here) to download and install Ad-Aware Free Antivirus.
  2. Update the definition files.
  3. Run a full scan of your computer.


Manual removal*

  1. Terminate malicious process(es) (How to End a Process With the Task Manager):

    certutil.exe:3628
    certutil.exe:2696
    certutil.exe:1800
    %original file name%.exe:1776
    run.exe:1064
    dist.exe:3452
    regedit.exe:536
    2dREb.exe:3544

  2. Delete the original Trojan file.
  3. Delete or disinfect the following files created/modified by the Trojan:

    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\2dREb.exe (36 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\iIgxIX4.pfx (2 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\run.exe (1 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\dist.exe (31604 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\ww.exe (22079 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\YGxlSXPtL.vbs (146 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\rpMCARCr.vbs (178 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\rr.vbe (2 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\BPh71Ye.vbs (146 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\B6kzM.vbs (146 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\QF69AzB.vbs (505 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\MeAjSWf.vbs (126 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\EDNhm3so.vbs (178 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\ww.bat (62 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\hVOfo.vbs (505 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\F6cI6NX8.vbs (505 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\ax3CF.vbs (126 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\YdD3ojxS.vbs (126 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\Tiizs2t.vbs (146 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\xRrJBdT.vbs (146 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\k8R6BEuZM.reg (633 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\DCdJOyapn.vbs (126 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\crgRY.vbs (178 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\ww.json (201 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\qPTGfRyil.vbs (178 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\hoZYFYZ.vbs (178 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\2dREb.txt (7071 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\YFOGK.vbs (178 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\sa1xVPfv.vbs (126 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\BDKsMla.vbs (505 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\TXC1O.vbs (126 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\SqWy6yhK.vbs (505 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\zdGc81.vbs (146 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\uieao.crt (1 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\rAQBc8.vbs (505 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\iIgxIX4.txt (4 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-732923889-1296844034-1208581001-1000\4d6629d6a7d5185ca5557446b928cfd8_88dcd395-b062-45b3-a6cd-79f37c0eba08 (87 bytes)

  4. Delete the following value(s) in the autorun key (How to Work with System Registry):

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
    "wextract_cleanup0" = "rundll32.exe C:\Windows\system32\advpack.dll,DelNodeRunDLL32 C:\Users\"%CurrentUserName%"\AppData\Local\Temp\IXP000.TMP\"

  5. Restore the original content of the HOSTS file (%System%\drivers\etc\hosts):
    127.0.0.1 localhost
  6. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

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