13b01dfe788827f1fff3cc2f0ce82b68cc97d795bdc7efbe634115760bda8237 | Triage

Analysis

max time kernel
125s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03/07/2024, 17:53

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General

Target

$PLUGINSDIR/UserInfo.dll
Size

4KB
MD5

8313b80c993dbf27b4b50d0a718f0913
SHA1

810972ca1b6587dbaf88192874bb9441db296429
SHA256

88829c8846c7059e499a15cb5abcddfcab63b56c19510d7a4cc418a4d9d742ba
SHA512

a53eda5f749102fa4ab1e8e916ad6fcc3e5563f28632f7b771413cdc6b3ec31d2d898ab3802ab047a8d8af5ebac445194a78ec38e7d20479e0f36cf8e81bb0df

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3412	1640	WerFault.exe	89

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 1640	1264	rundll32.exe	89
PID 1264 wrote to memory of 1640	1264	rundll32.exe	89
PID 1264 wrote to memory of 1640	1264	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserInfo.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1264
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\UserInfo.dll,#1
  2⤵
  PID:1640
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1640 -s 612
    3⤵
    - Program crash
    PID:3412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1640 -ip 1640
1⤵
PID:3484

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 --field-trial-handle=4036,i,17096020621006928097,15544233752327415349,262144 --variations-seed-version --mojo-platform-channel-handle=1320 /prefetch:8
1⤵
PID:2124

Network

MITRE ATT&CK Matrix

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