Gen.Variant.Zusy.92246_9307db03e8

by malwarelabrobot on November 7th, 2015 in Malware Descriptions.

Trojan.Win32.Agent.icgh (Kaspersky), Gen:Variant.Zusy.92246 (B) (Emsisoft), Gen:Variant.Zusy.92246 (AdAware), Trojan.Win32.Swrort.4.FD, TrojanSwrort.YR (Lavasoft MAS)
Behaviour: Trojan


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: 9307db03e8f3f4167b52bfaecab60e12
SHA1: d0d224bbb6bcb3513c49f70941514c11bdc973de
SHA256: 5d63f0afbae091cf6a04650c7fcd1cd7467501b6a5a52b5243db040b59c8f85c
SSDeep: 12288:71/aGLDCMNpNAkoSzZWD8ayX2MQCw7D01ttFrZ7TTs:71/aGLDCM4D8ayGMpLF1w
Size: 741817 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: Dwndr GmbH
Created at: 2014-02-27 08:41:59
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:1976
ccmrj.exe:380

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 %original file name%.exe:1976 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (542871 bytes)
%Documents and Settings%\All Users\Application Data\ccmrj.exe (914498 bytes)

The process ccmrj.exe:380 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\AUTOEXEC.BAT .exe (1455811 bytes)
C:\MSDOS.SYS .exe (1455811 bytes)
C:\IO.SYS .exe (1455811 bytes)
C:\boot.ini .exe (1455811 bytes)
C:\%original file name%.exe .exe (1455811 bytes)
%Documents and Settings% .exe (1455811 bytes)
C:\RECYCLER .exe (1455811 bytes)
C:\ntldr .exe (1455811 bytes)
C:\original .exe (1455811 bytes)
C:\totalcmd .exe (1455811 bytes)
C:\NTDETECT.COM .exe (1455811 bytes)
C:\System Volume Information .exe (1455811 bytes)
C:\CONFIG.SYS .exe (1455811 bytes)
C:\marker .exe (1455811 bytes)
%Program Files% .exe (1455811 bytes)
%WinDir% .exe (1455811 bytes)
C:\pagefile.sys .exe (1455811 bytes)

The Trojan deletes the following file(s):

C:\Mirax (0 bytes)
C:\Miray (0 bytes)
C:\Mirat (0 bytes)
C:\Mirau (0 bytes)
C:\Mirav (0 bytes)
C:\Miraw (0 bytes)
C:\Miras (0 bytes)
C:\Miram (0 bytes)
C:\Miran (0 bytes)
C:\Mirao (0 bytes)
C:\Mirai (0 bytes)
C:\Miraj (0 bytes)
C:\Mirad (0 bytes)
C:\Miraf (0 bytes)
C:\Mirag (0 bytes)
C:\Miraa (0 bytes)
C:\Mirac (0 bytes)

Registry activity

The process %original file name%.exe:1976 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "6B A1 62 98 F6 60 89 49 F2 A9 8F 31 02 4E 44 E0"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process ccmrj.exe:380 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\ccmrj.exe"

Dropped PE files

MD5 File path
71b76947a2f2b8e9fde1a5ef9c0fd1ba c:\%original file name%.exe .exe
f3a6fbadafa1bafea776aaa1278c7c8d c:\AUTOEXEC.BAT .exe
54a189a934a2044ec9fd1742c0ccfc34 c:\CONFIG.SYS .exe
bbcf81462b5abd89619046996f182dea c:\Documents and Settings .exe
d882647ae95e92c82bd66478d7043df3 c:\Documents and Settings\All Users\Application Data\Saaaalamm\Mira.h
add064ecb38fd676051681a705a20114 c:\Documents and Settings\All Users\Application Data\ccmrj.exe
ca04f35be577a302400f1dca4632bfaa c:\IO.SYS .exe
8ede99afefcd091627baf1d0fbdcd342 c:\MSDOS.SYS .exe
13b0579c89765ff0b1008ab8ac08230f c:\NTDETECT.COM .exe
5904c919deff819b78ea080cb383ef74 c:\Perl .exe
8a602130a6be7a964e252238de4b60a0 c:\Program Files .exe
6da3687ee800740e7d673839a88654d5 c:\RECYCLER .exe
169baef4767faea54fe7d6634a95286f c:\System Volume Information .exe
bcf3cf2dbd5f928d6a6a8054e0bc5e80 c:\WINDOWS .exe
e1fddee826f9949cac67fa9751047e25 c:\boot.ini .exe
417687f40413a41866e67bc660269efc c:\marker .exe
73bb750b4f9d72b17007f1a18c6bd67a c:\ntldr .exe
bf4d687cc555c4e42977ebf60bf99bf5 c:\original .exe
db5dc05bf035ab2ab18745ec40b0ee9f c:\pagefile.sys .exe
3dce35f767357291a071074606eaf0bb c:\totalcmd .exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 245368 245760 4.21465 8b164ac8ef3742f37830dc1842275667
.data 249856 608 1024 0.488703 6fda88cf7188a8245a53dfde927250fd
.rdata 253952 9384 9728 3.47165 dbe852009dbd077a9976cb0ecfb9aadf
.bss 266240 18576 0 0 d41d8cd98f00b204e9800998ecf8427e
.idata 286720 2212 2560 2.97703 5e5242c565219f3bd33a6568632559dc
.rsrc 290816 26552 26624 4.17624 4f88075da9fabc492ea7699cab7c0038

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):

ccmrj.exe_380:

.text
`.data
.rdata
@.bss
.idata
%Documents and Settings%\All Users\Application Data\ccmrj.exe
Software\Microsoft\Windows\CurrentVersion\Run
Windows
Operating System
%H:%M:%S
%m/%d/%y
-0123456789
%s:%u: failed assertion `%s'
RegCloseKey
RegOpenKeyA
ADVAPI32.DLL
KERNEL32.dll
msvcrt.dll
SHELL32.DLL


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:1976
    ccmrj.exe:380

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

    %Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (542871 bytes)
    %Documents and Settings%\All Users\Application Data\ccmrj.exe (914498 bytes)
    C:\AUTOEXEC.BAT .exe (1455811 bytes)
    C:\MSDOS.SYS .exe (1455811 bytes)
    C:\IO.SYS .exe (1455811 bytes)
    C:\boot.ini .exe (1455811 bytes)
    C:\%original file name%.exe .exe (1455811 bytes)
    %Documents and Settings% .exe (1455811 bytes)
    C:\RECYCLER .exe (1455811 bytes)
    C:\ntldr .exe (1455811 bytes)
    C:\original .exe (1455811 bytes)
    C:\totalcmd .exe (1455811 bytes)
    C:\NTDETECT.COM .exe (1455811 bytes)
    C:\System Volume Information .exe (1455811 bytes)
    C:\CONFIG.SYS .exe (1455811 bytes)
    C:\marker .exe (1455811 bytes)
    %Program Files% .exe (1455811 bytes)
    %WinDir% .exe (1455811 bytes)
    C:\pagefile.sys .exe (1455811 bytes)

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

    [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
    "Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\ccmrj.exe"

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

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