42b93254b754f4c8b4db78da230bd219e3cf6444f46369764939a6829fa62bb4 | Triage

Analysis

max time kernel
137s
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
25-05-2024 17:07

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General

Target

$PLUGINSDIR/System.dll
Size

11KB
MD5

a436db0c473a087eb61ff5c53c34ba27
SHA1

65ea67e424e75f5065132b539c8b2eda88aa0506
SHA256

75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49
SHA512

908f46a855480af6eacb2fb64de0e60b1e04bbb10b23992e2cf38a4cbebdcd7d3928c4c022d7ad9f7479265a8f426b93eef580afec95570e654c360d62f5e08d
SSDEEP

192:aVL7iZJX76BisO7+UZEw+Rl59pV8ghsVJ39dx8T:d7NsOpZsfLMJ39e

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1284 3052 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 700 wrote to memory of 3052	700	rundll32.exe	rundll32.exe
PID 700 wrote to memory of 3052	700	rundll32.exe	rundll32.exe
PID 700 wrote to memory of 3052	700	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:700

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
2⤵
PID:3052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3052 -s 612
3⤵
- Program crash
PID:1284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3052 -ip 3052
1⤵
PID:4712

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=4244,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=3900 /prefetch:8
1⤵
PID:1504

Network

MITRE ATT&CK Matrix

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