79ae14d993fdfc363514fada8e1aebe71eaf0ef8d80901ac2cf3cfc7e02c8c30

Analysis

max time kernel
96s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2024, 20:20

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General

Target

aac.dll
Size

12KB
MD5

a68a7fe555f5a05ecc3a2c2ad7d29bc9
SHA1

ebb293fec1928e0ce13db2f8d0f0a30c1b7eaa50
SHA256

2632601b48b0f99ad5a2d485144614271bf0016a8c5b85904e887ff46292fb1f
SHA512

e772fec34d4df76aeddcec37be18122c6d5d9d96d006c4279269590432b3370b2339fc70a8795ec9bef44746144d7afc05d7318aaf9fc9f4ab7db7968f9b17c1
SSDEEP

192:BrKqMXF+C7gUa9TGEL/dNi9XLd/W3X6rqQSAFnyMTCVzZg2Y4RSeB:BrKJX97gF96Y2Ld/qKjMMSz/0eB

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1832	4328	WerFault.exe	84

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 3 IoCs

description	pid	Process	procid_target
PID 1340 wrote to memory of 4328	1340	rundll32.exe	84
PID 1340 wrote to memory of 4328	1340	rundll32.exe	84
PID 1340 wrote to memory of 4328	1340	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\aac.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\aac.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4328
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 724
    3⤵
    - Program crash
    PID:1832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4328 -ip 4328
1⤵
PID:3640

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

Replay Monitor

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Downloads

memory/4328-1-0x0000000000A00000-0x0000000000B27000-memory.dmp

Filesize
1.2MB

Download
memory/4328-2-0x0000000000B30000-0x0000000000B69000-memory.dmp

Filesize
228KB

Download