090f40c308def8848a645375eeb8758ca9b6796a0b07ad04f38f9f0e7571ad48 | Triage

Analysis

max time kernel
140s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26/04/2024, 10:53

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General

Target

$PLUGINSDIR/StdUtils.dll
Size

25KB
MD5

bf1e3eeb30508a5ba86d912268db28df
SHA1

6b46253c42c1caa010e23a9c5dc8e372247d394e
SHA256

8d40af42ac73079369704eb366963d454993b1f7081ad7ff98d75aa867635c31
SHA512

37e1ab08b6fea28dbecf11adebfc8aff30fa5ec4a712c143cfe879328e32fa44f70e0727e3e888c12b2850141751e920eea763ab4b06d199be19fe38916fb746
SSDEEP

384:vl2pZK7DtDHCi6erpVpRC+GBcdmJwa0kBj4nYPLD5Xk+eMpsZ:vcpgPtDHCi6M7CY2c6mZ

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1896	1188	WerFault.exe	90

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4284 wrote to memory of 1188	4284	rundll32.exe	90
PID 4284 wrote to memory of 1188	4284	rundll32.exe	90
PID 4284 wrote to memory of 1188	4284	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#1
  2⤵
  PID:1188
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 612
    3⤵
    - Program crash
    PID:1896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1188 -ip 1188
1⤵
PID:2112

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4088 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
1⤵
PID:2508

Network

MITRE ATT&CK Matrix

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