109d2c68ae248842419691db5704822c6f96ec1472c62ecb372d80d55d167408

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14/09/2024, 14:34

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General

Target

$PLUGINSDIR/CRCCheck.dll
Size

3KB
MD5

ab4d03cf938fd9c748349b901314f6cd
SHA1

5b8fcd9a8a496c3ddf5267ac62c147359f44a93b
SHA256

55f7f4acf8b1eaa975fac2362633cc91d67d9749caa7916b9b6999db0f83e1c6
SHA512

3d2c730472fa371450e50313c28d5310d5edcf30fef5fab649151fda41721b2169884c2174cd247f09c666164ad68fa2e974f6b2c48e96fa4491758a358389aa

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3024	3004	WerFault.exe	30

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 11 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 3004	3000	rundll32.exe	30
PID 3000 wrote to memory of 3004	3000	rundll32.exe	30
PID 3000 wrote to memory of 3004	3000	rundll32.exe	30
PID 3000 wrote to memory of 3004	3000	rundll32.exe	30
PID 3000 wrote to memory of 3004	3000	rundll32.exe	30
PID 3000 wrote to memory of 3004	3000	rundll32.exe	30
PID 3000 wrote to memory of 3004	3000	rundll32.exe	30
PID 3004 wrote to memory of 3024	3004	rundll32.exe	31
PID 3004 wrote to memory of 3024	3004	rundll32.exe	31
PID 3004 wrote to memory of 3024	3004	rundll32.exe	31
PID 3004 wrote to memory of 3024	3004	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\CRCCheck.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\CRCCheck.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3004
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 224
    3⤵
    - Program crash
    PID:3024

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

Windows 7 deprecation

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