Gen.Variant.Zusy.186786_7a14d10ebc

by malwarelabrobot on July 5th, 2016 in Malware Descriptions.

Trojan.Win32.BitMiner.jz (Kaspersky), Gen:Variant.Zusy.186786 (B) (Emsisoft), Gen:Variant.Zusy.186786 (AdAware), Trojan.Win32.FlyStudio.FD, TrojanFlyStudio.YR (Lavasoft MAS)
Behaviour: Trojan


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

Requires JavaScript enabled!

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

MD5: 7a14d10ebc50ad01af46c1e3a2bbf8ba
SHA1: 285cdd6ad931a6a1e4a1ed73e5b792f69de5e0d0
SHA256: 739c1699ffb84f71aa58530265b59cc329fd202352c5fb3a1be456e48f096cbf
SSDeep: 98304:UDoMNXOxHjiHmU7AxwWajvOoykazOIz70i:oeBE7Eaj0k8f
Size: 3788800 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: PolyEnE001byLennartHedlund, MicrosoftVisualC, MicrosoftVisualCv50v60MFC, MicrosoftVisualC50, Armadillov171, UPolyXv05_v6
Company:
Created at: 2016-03-29 07:32:31
Analyzed on: WindowsXP SP3 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):

%original file name%.exe:1004
srvany.exe:1664

The Trojan injects its code into the following process(es):

Systmsi.exe:896

Mutexes

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

File activity

The process %original file name%.exe:1004 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%WinDir%\Systmsi.exe (7972 bytes)
%System%\srvany.exe (8 bytes)

Registry activity

The process %original file name%.exe:1004 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "5A 3B 34 6B E6 75 C5 B1 4C 3F A0 24 76 0B BD D8"

[HKLM\System\CurrentControlSet\Services\Mmservesi\Parameters]
"AppDirectory" = "c:\windows\"
"Application" = "c:\windows\svchosi.exe"

The process srvany.exe:1664 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "EC 95 5E DE 10 C3 6E 6C F7 A7 7D E3 D1 3B BD D6"

The process Systmsi.exe:896 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "6D 8D B4 24 E9 7F 10 35 DC 3D 57 58 F2 4D D4 2F"

Dropped PE files

MD5 File path
8b11325f4b729b7072c050035b454759 c:\WINDOWS\Systmsi.exe
4635935fc972c582632bf45c26bfcb0e c:\WINDOWS\system32\srvany.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

Company Name: Microsoft Corporation
Product Name: HD Player
Product Version: 6.1.7600.16385
Legal Copyright: (c) Microsoft Corporation. All rights reserved.
Legal Trademarks:
Original Filename: HelpPane.exe
Internal Name: HelpPane.exe
File Version: 6.1.7600.16385 (win7_rtm.090713-1255)
File Description: Microsoft Help and Support
Comments:
Language: English (United States)

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 543626 544768 4.55417 b5c4cd2bff5ed212ce658de7d0071d05
.rdata 548864 3115030 3117056 5.49669 789993537fad7280715ed772652d8148
.data 3665920 162376 73728 3.50315 f2f3e9db0b1210ac4c24fcc24f3a2953
.rsrc 3829760 49152 49152 3.81209 a23c9ce9f88d0a269bccf6dfc2bc687c

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

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):

%original file name%.exe_1004:

.text
`.rdata
@.data
.rsrc
t$(SSh
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advapi32.dll
Advapi32.dll
Kernel32.dll
kernel32.dll
ADVAPI32.DLL
RegOpenKeyExA
RegCreateKeyExA
RegCloseKey
GetServiceKeyNameA
Systmsi.exe
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Systmssi.exe
Systmssi.exe -a cryptonight -o stratum tcp://xmr.crypto-pool.fr:3333 -u 43YkRcrdW8zDsMNhP29S1yF8QBqYJ5UGgPCgCXUKyHnFFD8proXWxywYgMLvxBpVb4TSN3fD9taDrbJYnPbXAg6K5kNpLiN -p x -t 0 -dbg -1
.pdata
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svchosi.exe
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`.data
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srvany.pdb
msvcrt.dll
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inflate 1.1.3 Copyright 1995-1998 Mark Adler
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commctrl_DragListMsg
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COMCTL32.DLL
CCmdTarget
__MSVCRT_HEAP_SELECT
Broken pipe
Inappropriate I/O control operation
Operation not permitted
user32.dll
GetProcessHeap
WinExec
GetWindowsDirectoryA
GetKeyState
GetViewportOrgEx
GDI32.dll
WINMM.dll
WINSPOOL.DRV
ShellExecuteA
SHELL32.dll
ole32.dll
OLEAUT32.dll
COMCTL32.dll
GetCPInfo
CreateDialogIndirectParamA
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SetWindowsHookExA
SetViewportOrgEx
OffsetViewportOrgEx
SetViewportExtEx
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GetViewportExtEx
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(*.*)|*.*||
(*.WAV;*.MID)|*.WAV;*.MID|WAV
(*.WAV)|*.WAV|MIDI
(*.MID)|*.MID|
(*.txt)|*.txt|
(*.JPG;*.PNG;*.BMP;*.GIF;*.ICO;*.CUR)|*.JPG;*.PNG;*.BMP;*.GIF;*.ICO;*.CUR|JPG
(*.JPG)|*.JPG|PNG
(*.PNG)|*.PNG|BMP
(*.BMP)|*.BMP|GIF
(*.GIF)|*.GIF|
(*.ICO)|*.ICO|
(*.CUR)|*.CUR|
%s:%d
windows
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out.prn
(*.prn)|*.prn|
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libpng error: %s
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libpng does not support gamma background rgb_to_gray
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?><assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"><assemblyIdentity name="E.App" processorArchitecture="x86" version="5.2.0.0" type="win32"/><dependency><dependentAssembly><assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="x86" publicKeyToken="6595b64144ccf1df" language="*" /></dependentAssembly></dependency></assembly>
(*.*)
Microsoft Help and Support
6.1.7600.16385 (win7_rtm.090713-1255)
HelpPane.exe
Windows
Operating System
6.1.7600.16385

Systmsi.exe_896:

.text
`.rdata
@.data
.vmp0
.vmp1
.reloc
@.rsrc
d`.OE
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E:\CryptoNight\bitmonero-master\src\miner\Release\Crypto.pdb
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"><trustInfo xmlns="urn:schemas-microsoft-com:asm.v3"><security><requestedPrivileges><requestedExecutionLevel level="asInvoker" uiAccess="false"></requestedExecutionLevel></requestedPrivileges></security></trustInfo><application xmlns="urn:schemas-microsoft-com:asm.v3"><windowsSettings><dpiAware xmlns="hXXp://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware></windowsSettings></application></assembly>

Systmsi.exe_896_rwx_006D6000_00001000:

}%xH[


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):

    %original file name%.exe:1004
    srvany.exe:1664

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

    %WinDir%\Systmsi.exe (7972 bytes)
    %System%\srvany.exe (8 bytes)

  4. Reboot the computer.

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

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