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Analysis
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max time kernel
145s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23/12/2024, 20:48
Static task
static1
Behavioral task
behavioral1
Sample
info.lnk
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
info.lnk
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
tjufus\vafix.dll
Resource
win7-20240903-en
General
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Target
info.lnk
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Size
1KB
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MD5
af4691c6230c3309b730c154b03e0fe3
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SHA1
7c3012f127d9bb783e13c070f3ca3a166677b32c
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SHA256
8758fc876b298e2ee3e7ec19c26dd6a6c4acd8b3040a3f6c98030a94735c2119
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SHA512
03c0adc89853c15d308738499d8a364b61fc142ffd795cfea056b636859cb603189b7a0fdf6081da78294a73fd5da48a68af2bbbf3df83f5a4de162bad0c999b
Malware Config
Extracted
gozi
Extracted
gozi
3500
gtr.antoinfer.com
f1.bablefiler.at
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build
250211
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exe_type
loader
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server_id
580
Signatures
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Gozi family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation cmd.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3684 wrote to memory of 4820 3684 cmd.exe 83 PID 3684 wrote to memory of 4820 3684 cmd.exe 83 PID 4820 wrote to memory of 2012 4820 cmd.exe 84 PID 4820 wrote to memory of 2012 4820 cmd.exe 84 PID 2012 wrote to memory of 1040 2012 rundll32.exe 85 PID 2012 wrote to memory of 1040 2012 rundll32.exe 85 PID 2012 wrote to memory of 1040 2012 rundll32.exe 85
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\info.lnk1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3684 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C start /IM C:\Windows\System32\rundll32.exe %cd%\tjufus\vafix.dll,DllRegisterServer2⤵
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\tjufus\vafix.dll,DllRegisterServer3⤵
- Suspicious use of WriteProcessMemory
PID:2012 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\tjufus\vafix.dll,DllRegisterServer4⤵
- System Location Discovery: System Language Discovery
PID:1040
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