248ed0dd1f4416e73dc607e2d64d4a455ffbf052776a104055bc6cc5e9155fda | Triage

Analysis

max time kernel
134s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2024, 03:21

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General

Target

$PLUGINSDIR/epzyxtj.dll
Size

153KB
MD5

b71a7b770728d8bf683fc1c0a7dff963
SHA1

3fe8b0eea453de6e8194566405aea96850522219
SHA256

bca14e8b0f02201c8359aa07c78b2e1e2eacd5e2138045b0a79c2c0cfb87b459
SHA512

e8871ac507021098e4db370a14d15d0f033ab8849b45d71cdf5d6b9352501b11dc7a61feaea5e7585ccd68c0a4cd80e65ae5ef990383cec3ed6a15ed38607bfa
SSDEEP

3072:GCVIScDkrP/KXg8A0VqpTi+bG/PsSW6B:dIuq20VqVi6GfB

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3024	3752	WerFault.exe	92

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 3752	1696	rundll32.exe	92
PID 1696 wrote to memory of 3752	1696	rundll32.exe	92
PID 1696 wrote to memory of 3752	1696	rundll32.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\epzyxtj.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\epzyxtj.dll,#1
  2⤵
  PID:3752
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3752 -s 600
    3⤵
    - Program crash
    PID:3024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3752 -ip 3752
1⤵
PID:4236

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=4028,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4196 /prefetch:8
1⤵
PID:4712

Network

MITRE ATT&CK Matrix

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