9b587f0574d013ada38f6973195e0ebcb1889952370dd3396e9f89e3622ff81a | Triage

Analysis

max time kernel
145s
max time network
189s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
22-04-2024 01:43

Sharing

Report Analysis Logs

General

Target

CalcHashAB.dll
Size

1.2MB
MD5

36d95e64daf220f2800c72f066965b5f
SHA1

43a4133cfdcc8ca7fd26ffe3ea7cc671aa785e41
SHA256

09e96ac3583d6cd5655469fa55ae67fde7b09ca53385df678e3c80338ecf1f0d
SHA512

6706d2216bad44dc2785091ad044dedd2b0ab2f3bc47196da4bde85c833626900f0c8dbf45c87bdc53c99e3fa97bb7b6e93a7b7a8bb72e51aec540f8fd071605
SSDEEP

24576:6Ro7AfCUuKsOMmSxpeH6FzhjnQf9XPCRm:DAaULKxoH6FzhjnQ4Rm

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2004 3496 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3132 wrote to memory of 3496	3132	rundll32.exe	rundll32.exe
PID 3132 wrote to memory of 3496	3132	rundll32.exe	rundll32.exe
PID 3132 wrote to memory of 3496	3132	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\CalcHashAB.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3132

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\CalcHashAB.dll,#1
2⤵
PID:3496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 600
3⤵
- Program crash
PID:2004

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=1408 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
1⤵
PID:5056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3496 -ip 3496
1⤵
PID:5084

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3496-0-0x0000000075200000-0x0000000075375000-memory.dmp

Filesize
1.5MB

Download
memory/3496-1-0x0000000075200000-0x0000000075375000-memory.dmp

Filesize
1.5MB

Download