fcadf0a0a2c90421f3b2b67f4649eabec2d0c8d4dda9127c7621de4ae052f09d | Triage

Analysis

max time kernel
135s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
22-04-2024 02:06

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General

Target

CalcHashAB.dll
Size

1.2MB
MD5

e60455d108e19abbee36db52153579b9
SHA1

59c19ffc863e0ae8281dd6c0fee4baabdac00ca2
SHA256

24f5e57efa13bbab5a76a7d3867d0160d8da93023f84df83e99aeae07bc4161d
SHA512

db5da07750b39ce54410c432d9d5f384135e9380ddb01eca000667f7908e042b15ccae4a0678c08a94fa53160d82eb49f27852d665413785c32bcd24fb0a8a16
SSDEEP

24576:bRo7AfCUuKsOMmSxpeH6FzhjnQf9XPCRJ:WAaULKxoH6FzhjnQ4RJ

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4544 780 WerFault.exe rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3848 wrote to memory of 780	3848	rundll32.exe	rundll32.exe
PID 3848 wrote to memory of 780	3848	rundll32.exe	rundll32.exe
PID 3848 wrote to memory of 780	3848	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:3848

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\CalcHashAB.dll,#1
2⤵
PID:780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 608
3⤵
- Program crash
PID:4544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 780 -ip 780
1⤵
PID:464

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/780-0-0x0000000074BF0000-0x0000000074D65000-memory.dmp

Filesize
1.5MB

Download
memory/780-1-0x0000000074BF0000-0x0000000074D65000-memory.dmp

Filesize
1.5MB

Download