Overview

overview

10

Static

static

10

443f1fad21...b3.exe

windows10-2004-x64

10

443f1fad21...b3.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    59s
  • max time network
    61s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/05/2026, 20:19

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General

  • Target
    443f1fad21bafa96b9bfe1ac7d0acdf681920a7c1223cae8f22929f24ce566b3.exe
  • Size 45KB
  • Sample260528-y4bbfacw3j
  • SHA256 443f1fad21bafa96b9bfe1ac7d0acdf681920a7c1223cae8f22929f24ce566b3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • javhiv.com:443

  • javhiv.com:80

  • www.javhiv.com:443

  • www.javhiv.com:80

  • sasser.javhiv.com:443

  • sasser.javhiv.com:80

  • rat.javhiv.com:443

  • rat.javhiv.com:80

  • remcos.javhiv.com:443

  • remcos.javhiv.com:80

Mutex

  • DbrvvaUgl9r7

Attributes
  • delay

    0

  • install

    true

  • install_file

    l6uxpe5.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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\443f1fad21bafa96b9bfe1ac7d0acdf681920a7c1223cae8f22929f24ce566b3.exe
    "C:\Users\Admin\AppData\Local\Temp\443f1fad21bafa96b9bfe1ac7d0acdf681920a7c1223cae8f22929f24ce566b3.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1316
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "l6uxpe5" /tr '"C:\Users\Admin\AppData\Roaming\l6uxpe5.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:636
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "l6uxpe5" /tr '"C:\Users\Admin\AppData\Roaming\l6uxpe5.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:392
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3BBC.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3428
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2168
      • C:\Users\Admin\AppData\Roaming\l6uxpe5.exe
        "C:\Users\Admin\AppData\Roaming\l6uxpe5.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2812
  • C:\Users\Admin\AppData\Roaming\l6uxpe5.exe
    "C:\Users\Admin\AppData\Roaming\l6uxpe5.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2616

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp3BBC.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp3BBC.tmp.bat
        • Size 151B
        • SHA256 cb257f89f3fed7299a8a175e480be1d7a1e9dd8b6d71916ad9e7590760687714
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        l6uxpe5.exe
        • Path C:\Users\Admin\AppData\Roaming\l6uxpe5.exe
        • Size 45KB
        • SHA256 443f1fad21bafa96b9bfe1ac7d0acdf681920a7c1223cae8f22929f24ce566b3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1316-0-0x0000000000390000-0x00000000003A2000-memory.dmp
        Download

        memory/1316-1-0x0000000002720000-0x0000000002730000-memory.dmp
        Download

        memory/1316-2-0x0000000004E20000-0x0000000004EBC000-memory.dmp
        Download