Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-10-2024 13:20
Static task
static1
Behavioral task
behavioral1
Sample
Impressionist.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Impressionist.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20241007-en
General
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Target
$PLUGINSDIR/System.dll
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Size
11KB
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MD5
34442e1e0c2870341df55e1b7b3cccdc
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SHA1
99b2fa21aead4b6ccd8ff2f6d3d3453a51d9c70c
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SHA256
269d232712c86983336badb40b9e55e80052d8389ed095ebf9214964d43b6bb1
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SHA512
4a8c57fb12997438b488b862f3fc9dc0f236e07bb47b2bce6053dcb03ac7ad171842f02ac749f02dda4719c681d186330524cd2953d33cb50854844e74b33d51
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SSDEEP
192:jPtkiQJr7V9r3HcU17S8g1w5xzWxy6j2V7i77blbTc4I:u7VpNo8gmOyRsVc4
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 676 3120 WerFault.exe 83 -
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 3 IoCs
description pid Process procid_target PID 2636 wrote to memory of 3120 2636 rundll32.exe 83 PID 2636 wrote to memory of 3120 2636 rundll32.exe 83 PID 2636 wrote to memory of 3120 2636 rundll32.exe 83
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:2636 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:3120 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3120 -s 6123⤵
- Program crash
PID:676
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3120 -ip 31201⤵PID:4744