965c03c1440a12d996905d6c365b4aac7ba463e5a7b3add65be68ec6af460993

Analysis

max time kernel
134s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24/08/2024, 01:46

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General

Target

virussign.dll
Size

239KB
MD5

269189e8c93969e8ef4d28a5289e1e12
SHA1

16973f6140e3480fc58fba1085eba656e552f5a3
SHA256

d579216769046642f22fab9bd07a840f3ffb5d0566f2cfd3215845865c91d7de
SHA512

eef0b3e233bf875107cfb0432ef3b4f30dd351a48ce3dcdd6530cb321104db1b6e93725b27ff09acad4d03f10aa84a9b5b6fa1d5fd5c2736982f1ced925104bb
SSDEEP

3072:d6ii7HuBqspk2hMllwGQo2qPWG4fBHHvAsTt8M7yLPQQh41bslBUfDlxiGj9Mhx:0BHsuyMvwX4+iMGtzOSy8

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2152	3448	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 3448	1044	rundll32.exe	84
PID 1044 wrote to memory of 3448	1044	rundll32.exe	84
PID 1044 wrote to memory of 3448	1044	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\virussign.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\virussign.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3448
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3448 -s 664
    3⤵
    - Program crash
    PID:2152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3448 -ip 3448
1⤵
PID:1872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3448-0-0x0000000002100000-0x0000000002141000-memory.dmp

Filesize
260KB

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memory/3448-1-0x0000000002100000-0x0000000002141000-memory.dmp

Filesize
260KB

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