8fa040ad61b72d8be290640baf39fccc945d6991ac8356020fbee760c88656ce | Triage

Analysis

max time kernel
91s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/04/2024, 01:13

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General

Target

$PLUGINSDIR/nsUnzip.dll
Size

178KB
MD5

bde32fc5dcc9d98520c95fc23fa7bc92
SHA1

e81891aa3f6e500c33474c21ff324083cbb50fcd
SHA256

1fa8f2dfbe9fb83c0660e25e193e5aa09e1d4cd4af4f62e056b2930eb595c4c9
SHA512

99b8d5671fe0a6d6b3a660fd94cef91a69f20863bff2faaae686a673c15789d3d52dbc44c9699fa90f13f4af7d1bfb40c6449d73f608d9c6b5c1fffbf29383b3
SSDEEP

3072:97AFxQv5aD8vzH4upPcj/n/TEUruv/H3cwvZmBMRKqm5wJqb:97nXzpPOooAH3cwvZkcPPob

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1432	4596	WerFault.exe	83

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 4596	3680	rundll32.exe	83
PID 3680 wrote to memory of 4596	3680	rundll32.exe	83
PID 3680 wrote to memory of 4596	3680	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsUnzip.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3680
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsUnzip.dll,#1
  2⤵
  PID:4596
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4596 -s 612
    3⤵
    - Program crash
    PID:1432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4596 -ip 4596
1⤵
PID:3404

Network

MITRE ATT&CK Matrix

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