14dcf16ecda93e0b750e97406d3f992210cc5c0ccc90a4b48c9ca46e38877d6b | Triage

Analysis

max time kernel
144s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01/05/2024, 08:44

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General

Target

$PLUGINSDIR/sign.dll
Size

32KB
MD5

d30b6c8d2f38e6abbb2f39bac0808bc0
SHA1

f1bca6416ae0f4c52e5b076381c72b18472954d8
SHA256

1f2b4549129c1b98c5674fe363a0267376dfd623323c5815216043dfa7fe1f2a
SHA512

3bf03d839ffa04c1d5eeb89a6405820ab2eea3548050e730255df7e84dfc729157c0d5c7eceeead5e8e1f4aa23777fe78a5582f0772c85bf0f793dd245a887e8
SSDEEP

768:ciIqw3a6iG3SvsvUccH/ixF5cGIv5pXi:ci23avGCvycH/ifXuc

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

resource	yara_rule
behavioral8/memory/4344-0-0x0000000075740000-0x0000000075757000-memory.dmp	upx
behavioral8/memory/4344-1-0x0000000075740000-0x0000000075757000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4896	4344	WerFault.exe	91

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 4344	4844	rundll32.exe	91
PID 4844 wrote to memory of 4344	4844	rundll32.exe	91
PID 4844 wrote to memory of 4344	4844	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\sign.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4844
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\sign.dll,#1
  2⤵
  PID:4344
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 828
    3⤵
    - Program crash
    PID:4896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4344 -ip 4344
1⤵
PID:3128

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=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
1⤵
PID:3816

Network

MITRE ATT&CK Matrix

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Downloads

memory/4344-0-0x0000000075740000-0x0000000075757000-memory.dmp

Filesize
92KB

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memory/4344-1-0x0000000075740000-0x0000000075757000-memory.dmp

Filesize
92KB

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