Analysis
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max time kernel
120s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
11-08-2024 03:51
Static task
static1
Behavioral task
behavioral1
Sample
Payment Advice____xlsx.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
Payment Advice____xlsx.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240704-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
vynl0gnzsf.dll
Resource
win7-20240708-en
Behavioral task
behavioral6
Sample
vynl0gnzsf.dll
Resource
win10v2004-20240802-en
General
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Target
$PLUGINSDIR/System.dll
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Size
11KB
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MD5
fccff8cb7a1067e23fd2e2b63971a8e1
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SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91
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SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e
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SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c
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SSDEEP
192:xPtkiQJr7V9r3HcU17S8g1w5xzWxy6j2V7i77blbTc4v:g7VpNo8gmOyRsVc4
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 2952 2256 WerFault.exe 30 -
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 11 IoCs
description pid Process procid_target PID 2948 wrote to memory of 2256 2948 rundll32.exe 30 PID 2948 wrote to memory of 2256 2948 rundll32.exe 30 PID 2948 wrote to memory of 2256 2948 rundll32.exe 30 PID 2948 wrote to memory of 2256 2948 rundll32.exe 30 PID 2948 wrote to memory of 2256 2948 rundll32.exe 30 PID 2948 wrote to memory of 2256 2948 rundll32.exe 30 PID 2948 wrote to memory of 2256 2948 rundll32.exe 30 PID 2256 wrote to memory of 2952 2256 rundll32.exe 31 PID 2256 wrote to memory of 2952 2256 rundll32.exe 31 PID 2256 wrote to memory of 2952 2256 rundll32.exe 31 PID 2256 wrote to memory of 2952 2256 rundll32.exe 31
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2948 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2256 -s 2243⤵
- Program crash
PID:2952
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