ae2001d5b60a2f0bd8e72c0106363950cd9f68e9ce42b9a40b0af26814908809 | Triage

Analysis

max time kernel
151s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07-04-2024 07:27

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General

Target

$PLUGINSDIR/BgWorker.dll
Size

2KB
MD5

33ec04738007e665059cf40bc0f0c22b
SHA1

4196759a922e333d9b17bda5369f14c33cd5e3bc
SHA256

50f735ab8f3473423e6873d628150bbc0777be7b4f6405247cddf22bb00fb6be
SHA512

2318b01f0c2f2f021a618ca3e6e5c24a94df5d00154766b77160203b8b0a177c8581c7b688ffe69be93a69bc7fd06b8a589844d42447f5060fb4bcf94d8a9aef

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2144 3268 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4808 wrote to memory of 3268	4808	rundll32.exe	rundll32.exe
PID 4808 wrote to memory of 3268	4808	rundll32.exe	rundll32.exe
PID 4808 wrote to memory of 3268	4808	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\BgWorker.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4808

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\BgWorker.dll,#1
2⤵
PID:3268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 612
3⤵
- Program crash
PID:2144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3268 -ip 3268
1⤵
PID:5052

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=3688 --field-trial-handle=2260,i,9938964625802268469,1928462186077019554,262144 --variations-seed-version /prefetch:8
1⤵
PID:2828

Network

MITRE ATT&CK Matrix

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