9b2a6fe00e3443378c0a5aad4b69966ee66535645c0493479a683f58a8df7fbf

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
28/06/2024, 13:57

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General

Target

$PLUGINSDIR/cpudesc.dll
Size

4KB
MD5

d25102051b33f61c9f7fb564a4556219
SHA1

c683964c11d5175171bd009cb08f87592c923f85
SHA256

e58e5d1d8da2ea526d0d754b4faad3773021166b0720723efb7b30f1f5075398
SHA512

8828eec31926251d7e51b5bf1050c3519c9b7fca4f978fb6ee0bf18f9642c3460687f10ff79e5892100ecadbf49725711567c348e1dfccb3644bd9ef992a92f0

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2748	2388	WerFault.exe	28

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 11 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 2388	1756	rundll32.exe	28
PID 1756 wrote to memory of 2388	1756	rundll32.exe	28
PID 1756 wrote to memory of 2388	1756	rundll32.exe	28
PID 1756 wrote to memory of 2388	1756	rundll32.exe	28
PID 1756 wrote to memory of 2388	1756	rundll32.exe	28
PID 1756 wrote to memory of 2388	1756	rundll32.exe	28
PID 1756 wrote to memory of 2388	1756	rundll32.exe	28
PID 2388 wrote to memory of 2748	2388	rundll32.exe	29
PID 2388 wrote to memory of 2748	2388	rundll32.exe	29
PID 2388 wrote to memory of 2748	2388	rundll32.exe	29
PID 2388 wrote to memory of 2748	2388	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\cpudesc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\cpudesc.dll,#1
  2⤵
  - Checks processor information in registry
  - Suspicious use of WriteProcessMemory
  PID:2388
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 224
    3⤵
    - Program crash
    PID:2748

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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