d6129731391f088c7c219e2cf69fed6d71e769514e29e65c179116feba1d3d8d

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09/07/2024, 13:59

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General

Target

$TEMP/modules/auxr.dll
Size

63KB
MD5

7f766010d48093ac4f9a1ae5f8adb15c
SHA1

c145c109002e17f8c321ee0b2337bf0ff6b1c3da
SHA256

9bc480c5e32dfcddff336778015b7a88c7ae5447e36956faba6ae81ca448c18a
SHA512

6d92667be47af5cb6207f83a653f94fc7585b5ea73998909b1ca03da17704eff3832d3aeefa248d072904c38a668255f84555ca89272601eaff0529dced0d828
SSDEEP

768:kQkBeqgp6xFpvVAdSNifT+PqsUtLfO10a5LiE0r9RahAN6XoTzvouSb8L:kQIe1iAdkifT+otfOTefsAwoTzv8E

Score

7^/10

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
348	2912	WerFault.exe	30

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2912	2352	rundll32.exe	30
PID 2352 wrote to memory of 2912	2352	rundll32.exe	30
PID 2352 wrote to memory of 2912	2352	rundll32.exe	30
PID 2352 wrote to memory of 2912	2352	rundll32.exe	30
PID 2352 wrote to memory of 2912	2352	rundll32.exe	30
PID 2352 wrote to memory of 2912	2352	rundll32.exe	30
PID 2352 wrote to memory of 2912	2352	rundll32.exe	30
PID 2912 wrote to memory of 348	2912	rundll32.exe	31
PID 2912 wrote to memory of 348	2912	rundll32.exe	31
PID 2912 wrote to memory of 348	2912	rundll32.exe	31
PID 2912 wrote to memory of 348	2912	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\modules\auxr.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\modules\auxr.dll,#1
  2⤵
  - Checks BIOS information in registry
  - Suspicious use of WriteProcessMemory
  PID:2912
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2912 -s 228
    3⤵
    - Program crash
    PID:348

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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