d3500266325555c9e777a4c585afc05dfd73b4cbe9dba741c5876593b78059fd

Analysis

max time kernel
149s
max time network
105s
platform
windows11-21h2_x64
resource
win11-20251015-en
resource tags

arch:x64arch:x86image:win11-20251015-enlocale:en-usos:windows11-21h2-x64system
submitted
04/11/2025, 15:47

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General

Target
DLLs/_asyncio.dll
Size 53KB
Sample251104-s792aavmck
SHA256 c878c6bb9e8879143500e95889da1381c394737769e1840d493cef8537ed4eb6
MD5 4cb22b2bfdd2e7ec584ddc759c30271f
SHA1 4294def2d0b8a8181f436764bd7a902a547a3b34
SHA512 ae823779061b445d961a85997ea85f5f14c3113230470913486b0eb1a41a01de91c587c927a28fca8e88dad9b7e1b93c14ba511da2298d2c53fe4e4cb59c3ced
SSDEEP 768:iIMTdISzBzfoklPfSGvR/X6ERkmqMDWfu9I/sngci/YzBGVp+g:DMpISVE+aGZrRx/SW9I/sngciwsVpD
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

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 276 wrote to memory of 5720	276	rundll32.exe	78
PID 276 wrote to memory of 5720	276	rundll32.exe	78
PID 276 wrote to memory of 5720	276	rundll32.exe	78

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\DLLs\_asyncio.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:276
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\DLLs\_asyncio.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5720

Network

MITRE ATT&CK Enterprise v16

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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