Overview

overview

10

Static

static

10

5b1ed81b8f...9c.exe

windows10-2004-x64

10

5b1ed81b8f...9c.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    58s
  • max time network
    60s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    01/07/2026, 19:43

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General

  • Target
    5b1ed81b8fb3089c473739c908ca088682df0e7440ce8fa4a9cd23e18303169c.exe
  • Size 45KB
  • Sample260701-yfn8dsfw2v
  • SHA256 7e7f05b423992ce9ec6a0b27977b6638f8fa0e4d4f09e3485ef8022a17fe7d08
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • sexviet3.com:5367

  • sexviet3.com:7707

  • sexviet3.com:4468

  • sexviet3.com:8832

  • sexviet3.com:2257

  • sexviet3.com:1729

  • sexviet3.com:9527

  • sexviet3.com:1344

  • sexviet3.com:8562

  • www.sexviet3.com:5367

  • www.sexviet3.com:7707

  • www.sexviet3.com:4468

  • www.sexviet3.com:8832

  • www.sexviet3.com:2257

  • www.sexviet3.com:1729

  • www.sexviet3.com:9527

  • www.sexviet3.com:1344

  • www.sexviet3.com:8562

  • darkside.sexviet3.com:5367

  • darkside.sexviet3.com:7707

Mutex

  • F1GILMYAEWaa

Attributes
  • delay

    0

  • install

    true

  • install_file

    gad2.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b1ed81b8fb3089c473739c908ca088682df0e7440ce8fa4a9cd23e18303169c.exe
    "C:\Users\Admin\AppData\Local\Temp\5b1ed81b8fb3089c473739c908ca088682df0e7440ce8fa4a9cd23e18303169c.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2412
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "gad2" /tr '"C:\Users\Admin\AppData\Roaming\gad2.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:704
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "gad2" /tr '"C:\Users\Admin\AppData\Roaming\gad2.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5112
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp88C3.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3560
      • C:\Users\Admin\AppData\Roaming\gad2.exe
        "C:\Users\Admin\AppData\Roaming\gad2.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1720
  • C:\Users\Admin\AppData\Roaming\gad2.exe
    "C:\Users\Admin\AppData\Roaming\gad2.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4452

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp88C3.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp88C3.tmp.bat
        • Size 148B
        • SHA256 bb389e46b974228970d346ca04c1ce192c246b9a081f065e68e0d73f5a1a77d3
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        gad2.exe
        • Path C:\Users\Admin\AppData\Roaming\gad2.exe
        • Size 45KB
        • SHA256 7e7f05b423992ce9ec6a0b27977b6638f8fa0e4d4f09e3485ef8022a17fe7d08
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/2412-0-0x0000000000A30000-0x0000000000A42000-memory.dmp
        Download

        memory/2412-1-0x00000000053D0000-0x00000000053E0000-memory.dmp
        Download

        memory/2412-2-0x0000000005480000-0x000000000551C000-memory.dmp
        Download

        memory/4452-10-0x0000000004C70000-0x0000000004C80000-memory.dmp
        Download

        memory/4452-13-0x0000000004C70000-0x0000000004C80000-memory.dmp
        Download