f770e058f0bd38c879d59cfd5c6b4738ff5cd70a5490365d4ccf64747b1d389f

Analysis

max time kernel
149s
max time network
157s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
01/05/2026, 12:19

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General

Target
_asyncio.dll
Size 54KB
Sample260501-pg7lpabs3k
SHA256 f770e058f0bd38c879d59cfd5c6b4738ff5cd70a5490365d4ccf64747b1d389f
MD5 8fdaf069946f122bf6536c68f99c30cb
SHA1 2bfd58e54764c1a3acfce59c882cd833f66a5f86
SHA512 f56851681b4cf064a9d9130009140c59096870951a6230fb71c63a105ec5f7d3c31ca193c188b4b35a9f596740c731d04df84fcc32fa3f1f0fe4f170d09a5ae7
SSDEEP 1536:CcUcUX6ub24KM/Ss13hID5nQt7Sy8CnPxn:CcjA6JM/SshhID5nQaCPxn
TLSH
T185435B01BB105662EBDE10B872D95B7EBDB8E4304BD500E3BA9F5CD51A601D3D3BA782
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1028	6036	WerFault.exe	80

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 1 IoCs

description	pid	Process	procid_target
PID 3316 wrote to memory of 6036	3316	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\_asyncio.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3316
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\_asyncio.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:6036
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 6036 -s 520
    3⤵
    - Program crash
    PID:1028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 6036 -ip 6036
1⤵
PID:5620

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

Replay Monitor

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Downloads

memory/6036-0-0x00000000025E0000-0x00000000026BA000-memory.dmp

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