b7e4b4cba044fe5c1c9a4ab2eca108eff1ff3bf7ff1fde14668873b81d3564c9 | Triage

Analysis

max time kernel
148s
max time network
175s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/03/2024, 01:01

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

v1773/bin/bci.dll
Size

15KB
MD5

a46289384f76c2a41ba7251459849288
SHA1

4d8ef96edbe07c8722fa24e4a5b96ebfa18be2c4
SHA256

728d64bc1fbf48d4968b1b93893f1b5db88b052ab82202c6840bf7886a64017d
SHA512

34d62beb1fa7d8630f5562c1e48839ce9429faea980561e58076df5f19755761454eeb882790ec1035c64c654fc1a8cd5eb46eca12e2bc81449acbb73296c9e8
SSDEEP

384:1Td3hw/L3kKLnYgIOGOOssnPV5Lnf6onYPLr7EbH:1zw/bkKLt7KnddnfPC7S

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5844	3496	WerFault.exe	96

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 3496	3272	rundll32.exe	96
PID 3272 wrote to memory of 3496	3272	rundll32.exe	96
PID 3272 wrote to memory of 3496	3272	rundll32.exe	96

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\v1773\bin\bci.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3272
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\v1773\bin\bci.dll,#1
  2⤵
  PID:3496
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 604
    3⤵
    - Program crash
    PID:5844

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=4028 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:5528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3496 -ip 3496
1⤵
PID:4036

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads