b44a59d125a8c64cdf485c3534f390a96c085fc2406db96ccae87e61cfece4de

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 10:57

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General

Target

$PLUGINSDIR/cpudesc.dll
Size

4KB
MD5

d25102051b33f61c9f7fb564a4556219
SHA1

c683964c11d5175171bd009cb08f87592c923f85
SHA256

e58e5d1d8da2ea526d0d754b4faad3773021166b0720723efb7b30f1f5075398
SHA512

8828eec31926251d7e51b5bf1050c3519c9b7fca4f978fb6ee0bf18f9642c3460687f10ff79e5892100ecadbf49725711567c348e1dfccb3644bd9ef992a92f0

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2248	3336	WerFault.exe	82

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

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 892 wrote to memory of 3336	892	rundll32.exe	82
PID 892 wrote to memory of 3336	892	rundll32.exe	82
PID 892 wrote to memory of 3336	892	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\cpudesc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:892
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\cpudesc.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  PID:3336
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3336 -s 616
    3⤵
    - Program crash
    PID:2248

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3336 -ip 3336
1⤵
PID:2584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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