d6129731391f088c7c219e2cf69fed6d71e769514e29e65c179116feba1d3d8d

Analysis

max time kernel
92s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
09/07/2024, 13:59

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General

Target
$TEMP/modules/auxr.dll
Size 63KB
Sample240709-ragg2ayfke
SHA256 9bc480c5e32dfcddff336778015b7a88c7ae5447e36956faba6ae81ca448c18a
MD5 7f766010d48093ac4f9a1ae5f8adb15c
SHA1 c145c109002e17f8c321ee0b2337bf0ff6b1c3da
SHA512 6d92667be47af5cb6207f83a653f94fc7585b5ea73998909b1ca03da17704eff3832d3aeefa248d072904c38a668255f84555ca89272601eaff0529dced0d828
SSDEEP 768:kQkBeqgp6xFpvVAdSNifT+PqsUtLfO10a5LiE0r9RahAN6XoTzvouSb8L:kQIe1iAdkifT+otfOTefsAwoTzv8E
MD5 SHA1 SHA512 SSDEEP

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
408	4424	WerFault.exe	82

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 4424	1676	rundll32.exe	82
PID 1676 wrote to memory of 4424	1676	rundll32.exe	82
PID 1676 wrote to memory of 4424	1676	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\modules\auxr.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\modules\auxr.dll,#1
  2⤵
  - Checks BIOS information in registry
  PID:4424
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4424 -s 628
    3⤵
    - Program crash
    PID:408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4424 -ip 4424
1⤵
PID:4760

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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