377fb263a491736f9d0e91b2ae9204bc0aca7df60f64c2acb14351b4d429b863

Analysis

max time kernel
149s
max time network
158s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
26/04/2026, 12:10

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General

Target
TEMP/_asyncio.dll
Size 62KB
Sample260426-pcfbmscs5n
SHA256 377fb263a491736f9d0e91b2ae9204bc0aca7df60f64c2acb14351b4d429b863
MD5 372c47c9fd217c36119e3abd606f9ec1
SHA1 c9e40748db7e648e20ec281ba424470dffc29aad
SHA512 ce8232271bf567c6e6512c9679eaaa986d58addc60756b681f4fe0f2d8bd0d38f8ecc02a17a6d3161c68d1b5424e5db15a8bf76211ea6e3175e652fe1d5244d3
SSDEEP 1536:W1s5t3L+U37Uw03zkNd3i6VOhCH9Iyvn1gdayrcz89zgfIUNw:W1s5t3yIx0jk/RVuK9Iyvn1BYz
TLSH
T1B6535C42A54640F3F5DD30B0B6F847B2683CA65157EA18E3ACE74CAC1E743D2B2B9746
MD5 SHA1 SHA512 SSDEEP TLSH

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 1 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 5144	1616	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\TEMP\_asyncio.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\TEMP\_asyncio.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5144

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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Downloads