f4ed82101d7f7ba519079ea91d3a4c18d974d72ccc0dd63747c33b0aeedb82b9 | Triage

Analysis

max time kernel
137s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/04/2024, 03:16

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General

Target

$PLUGINSDIR/AccessControl.dll
Size

8KB
MD5

9f1a88b953fd2a2c23b09703b253186c
SHA1

29d5a5a24e7f782a07e9f5d2ec1d1a6218fec737
SHA256

8a8f5bafc105186c85f14e017ab6da33ae8f88a9635e51756f90b6d95381d80d
SHA512

10b3a812c92b7324bddcd23adf923fcaec2532f31bdd9fbf17494fc33f99aa0a0a48b94f1fdd6599fa0189567626a90b324a1d132bf9cb8b00a6afc547e64018
SSDEEP

192:RmcLe8uWVNz5ZalBK/7rUlYg5q5LcywvX5:RJdNzMKXUlYg5qPq5

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 2 IoCs

resource	yara_rule
behavioral4/memory/5004-0-0x00000000750F0000-0x00000000750FA000-memory.dmp	UPX
behavioral4/memory/5004-1-0x00000000750F0000-0x00000000750FA000-memory.dmp	UPX

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

resource	yara_rule
behavioral4/memory/5004-0-0x00000000750F0000-0x00000000750FA000-memory.dmp	upx
behavioral4/memory/5004-1-0x00000000750F0000-0x00000000750FA000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1108	5004	WerFault.exe	90

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5080 wrote to memory of 5004	5080	rundll32.exe	90
PID 5080 wrote to memory of 5004	5080	rundll32.exe	90
PID 5080 wrote to memory of 5004	5080	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\AccessControl.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5080
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\AccessControl.dll,#1
  2⤵
  PID:5004
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 612
    3⤵
    - Program crash
    PID:1108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5004 -ip 5004
1⤵
PID:2040

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:3752

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/5004-0-0x00000000750F0000-0x00000000750FA000-memory.dmp

Filesize
40KB

Download
memory/5004-1-0x00000000750F0000-0x00000000750FA000-memory.dmp

Filesize
40KB

Download