aa8ff4d4c4505f9245ae995be2fee8f6a78b1167126e613490e1c22549bdf142 | Triage™

Analysis

max time kernel
233s
max time network
303s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
02/06/2024, 22:29

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General

Target
$PLUGINSDIR/BgWorker.dll
Size 2KB
Sample240602-2ekqcsae24
SHA256 50f735ab8f3473423e6873d628150bbc0777be7b4f6405247cddf22bb00fb6be
MD5 33ec04738007e665059cf40bc0f0c22b
SHA1 4196759a922e333d9b17bda5369f14c33cd5e3bc
SHA512 2318b01f0c2f2f021a618ca3e6e5c24a94df5d00154766b77160203b8b0a177c8581c7b688ffe69be93a69bc7fd06b8a589844d42447f5060fb4bcf94d8a9aef
MD5 SHA1 SHA512

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1956	3984	WerFault.exe	91

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 3984	3040	rundll32.exe	91
PID 3040 wrote to memory of 3984	3040	rundll32.exe	91
PID 3040 wrote to memory of 3984	3040	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\BgWorker.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\BgWorker.dll,#1
  2⤵
  PID:3984
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 604
    3⤵
    - Program crash
    PID:1956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3984 -ip 3984
1⤵
PID:1924

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=3904 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:5968

Network

MITRE ATT&CK Matrix

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