76dc9781cba6d404b709f3b50f6d1fc4a9028ed13bb44df20fee6aa97429e759 | Triage

Analysis

max time kernel
139s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 18:02

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General

Target

$PLUGINSDIR/UserInfo.dll
Size

4KB
MD5

593345196fcd1c553b0702cc026ccccd
SHA1

84446849c10e0c4d6683072f4c2eea5a085bac2f
SHA256

fb4a4bea088b8dbf2adda6fdeb50be4b96bf20ba62bd9ac64b68ea628166a28d
SHA512

b28da01bec7a34a493316606c7406c06d0b278f1318563874f037caf203c2ec261c3f5c2a1790c6c177537bbb0f4dd0b7be482976f7114f70be75b5e4b311306

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4164	1656	WerFault.exe	90

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 1656	412	rundll32.exe	90
PID 412 wrote to memory of 1656	412	rundll32.exe	90
PID 412 wrote to memory of 1656	412	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserInfo.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:412
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserInfo.dll,#1
  2⤵
  PID:1656
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 612
    3⤵
    - Program crash
    PID:4164

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=4080 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1656 -ip 1656
1⤵
PID:2012

Network

MITRE ATT&CK Matrix

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