de08c69d06b2f176058aa6001b9f9195ef9599f1f79b783e21762046258583d3 | Triage

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04-03-2024 05:33

240304-f84jnsca52 10

04-03-2024 04:18

240304-exd9zahe9z 10

Analysis

max time kernel
590s
max time network
604s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
04-03-2024 05:33

Sharing

Report Analysis Logs

General

Target

dcrat/data/7zxa.dll
Size

155KB
MD5

786d4c74c05832a652be5c0a559be1e6
SHA1

56bc5cf0bef56565da871af9e10ac8c2302d2ad7
SHA256

d0680ac62e94f953df031533acd0acb718ad8494f938d84198c655507709e5df
SHA512

29cf07d3acceb716a2e9ec66434170ba7f15c5af3c843253d72be6f7bf1ab942a6e098a423beb33efb9fbf8bb6c967c34d4dedf65aca72984c6aa70c58e0eeb4
SSDEEP

3072:QwBYN3i204AHpzTjaLd4+OTpLcl28hpQplf4btKL6mCF:E3cp3jaLupLc3fclAKmJ

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4904 60 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2464 wrote to memory of 60	2464	rundll32.exe	rundll32.exe
PID 2464 wrote to memory of 60	2464	rundll32.exe	rundll32.exe
PID 2464 wrote to memory of 60	2464	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dcrat\data\7zxa.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\dcrat\data\7zxa.dll,#1
  2⤵
  PID:60
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 60 -s 600
    3⤵
    - Program crash
    PID:4904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 60 -ip 60
1⤵
PID:4684

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=4016 --field-trial-handle=3084,i,11997299123381683778,5904351605020331957,262144 --variations-seed-version /prefetch:8
1⤵
PID:4336

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=1416 --field-trial-handle=3084,i,11997299123381683778,5904351605020331957,262144 --variations-seed-version /prefetch:8
1⤵
PID:3568

Network

MITRE ATT&CK Matrix

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