Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
submitted
01-05-2024 22:18
Behavioral task
behavioral1
Sample
old.dll
Resource
win7-20240221-en
windows7-x64
2 signatures
150 seconds
Behavioral task
behavioral2
Sample
old.dll
Resource
win10v2004-20240419-en
windows10-2004-x64
2 signatures
150 seconds
General
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Target
old.dll
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Size
36.1MB
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MD5
38bf550f8d73ea9791d7778d9b6b44a8
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SHA1
67bf70a4d78f9f18b1af30cd9c85c632b52188c1
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SHA256
ed6566cd8828d0d9a7bd2bd7731df7703977d9b18fa7ede31bb8b1835b12da78
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SHA512
cfff6d55b90a42be22d09aaf30eed718b71fff8bfddab2404e968359a18ab8aec679a4ca85e144d3527602fd515a03724e897addd68865e796b0a387f582fd7f
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SSDEEP
393216:g4S82OrtN+zJkGsF20dH5ZXtpKjzw1QxgvLqmNAmjpy:7OOrtN+zJkGsF2OZZXuv4GcLjp
Score
3/10
Malware Config
Signatures
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Program crash 2 IoCs
pid pid_target Process procid_target 2756 1424 WerFault.exe 84 3828 1424 WerFault.exe 84 -
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 8 wrote to memory of 1424 8 rundll32.exe 84 PID 8 wrote to memory of 1424 8 rundll32.exe 84 PID 8 wrote to memory of 1424 8 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\old.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:8 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\old.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:1424 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1424 -s 5443⤵
- Program crash
PID:2756
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1424 -s 8003⤵
- Program crash
PID:3828
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1424 -ip 14241⤵PID:3524
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1424 -ip 14241⤵PID:4964