Overview

overview

10

Static

static

10

ac4a8ea6ff...be.exe

windows10-2004-x64

10

ac4a8ea6ff...be.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    01/06/2026, 16:45

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General

  • Target
    ac4a8ea6ff15593fff080dbb110f89e2ee0688bf950456b4de42631c20d380be.exe
  • Size 45KB
  • Sample260601-t9darscs6j
  • SHA256 ac4a8ea6ff15593fff080dbb110f89e2ee0688bf950456b4de42631c20d380be
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • viwap.blog:443

  • viwap.blog:80

  • viwap.blog:7797

  • viwap.blog:8707

  • viwap.blog:6620

  • www.viwap.blog:443

  • www.viwap.blog:80

  • www.viwap.blog:7797

  • www.viwap.blog:8707

  • www.viwap.blog:6620

  • rat.viwap.blog:443

  • rat.viwap.blog:80

  • rat.viwap.blog:7797

  • rat.viwap.blog:8707

  • rat.viwap.blog:6620

  • downadup.viwap.blog:443

  • downadup.viwap.blog:80

  • downadup.viwap.blog:7797

  • downadup.viwap.blog:8707

  • downadup.viwap.blog:6620

Mutex

  • IWAtJMS4NpFv

Attributes
  • delay

    0

  • install

    true

  • install_file

    lxa3nlvm.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
  • 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 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac4a8ea6ff15593fff080dbb110f89e2ee0688bf950456b4de42631c20d380be.exe
    "C:\Users\Admin\AppData\Local\Temp\ac4a8ea6ff15593fff080dbb110f89e2ee0688bf950456b4de42631c20d380be.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "lxa3nlvm" /tr '"C:\Users\Admin\AppData\Roaming\lxa3nlvm.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1044
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "lxa3nlvm" /tr '"C:\Users\Admin\AppData\Roaming\lxa3nlvm.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4112
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFABB.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2160
      • C:\Users\Admin\AppData\Roaming\lxa3nlvm.exe
        "C:\Users\Admin\AppData\Roaming\lxa3nlvm.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5296
  • C:\Users\Admin\AppData\Roaming\lxa3nlvm.exe
    "C:\Users\Admin\AppData\Roaming\lxa3nlvm.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:916

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpFABB.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmpFABB.tmp.bat
        • Size 152B
        • SHA256 3b1c85e871e728b96d8829b8dab169942da55f588fa66c5ad18c74a0618934ed
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        lxa3nlvm.exe
        • Path C:\Users\Admin\AppData\Roaming\lxa3nlvm.exe
        • Size 45KB
        • SHA256 ac4a8ea6ff15593fff080dbb110f89e2ee0688bf950456b4de42631c20d380be
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1724-0-0x0000000000480000-0x0000000000492000-memory.dmp
        Download

        memory/1724-1-0x0000000005010000-0x0000000005020000-memory.dmp
        Download

        memory/1724-2-0x0000000004F00000-0x0000000004F9C000-memory.dmp
        Download