Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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, 16:07

General

  • Target
    6d69c94e6b37c75a01c8ab2eb12eb5da0016001c9e2687cfaf45aec1aa98efbf.exe
  • Size 45KB
  • Sample260601-tkrrvsbv3r
  • SHA256 6d69c94e6b37c75a01c8ab2eb12eb5da0016001c9e2687cfaf45aec1aa98efbf
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • antepfistiksatisi.com:443

  • antepfistiksatisi.com:80

  • www.antepfistiksatisi.com:443

  • www.antepfistiksatisi.com:80

  • nimda.antepfistiksatisi.com:443

  • nimda.antepfistiksatisi.com:80

  • client.antepfistiksatisi.com:443

  • client.antepfistiksatisi.com:80

  • gozi.antepfistiksatisi.com:443

  • gozi.antepfistiksatisi.com:80

  • dridex.antepfistiksatisi.com:443

  • dridex.antepfistiksatisi.com:80

Mutex
  • fsSqrtZD4Qeg

Attributes
  • delay

    0

  • install

    true

  • install_file

    8twc8chs.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

  • Async RAT payload 1 IoCs
  • 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.

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

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

  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6d69c94e6b37c75a01c8ab2eb12eb5da0016001c9e2687cfaf45aec1aa98efbf.exe
    "C:\Users\Admin\AppData\Local\Temp\6d69c94e6b37c75a01c8ab2eb12eb5da0016001c9e2687cfaf45aec1aa98efbf.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:852
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "8twc8chs" /tr '"C:\Users\Admin\AppData\Roaming\8twc8chs.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3256
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "8twc8chs" /tr '"C:\Users\Admin\AppData\Roaming\8twc8chs.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1852
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp33BD.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1056
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2928
      • C:\Users\Admin\AppData\Roaming\8twc8chs.exe
        "C:\Users\Admin\AppData\Roaming\8twc8chs.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3160
  • C:\Users\Admin\AppData\Roaming\8twc8chs.exe
    "C:\Users\Admin\AppData\Roaming\8twc8chs.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3460

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp33BD.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp33BD.tmp.bat
        • Size 152B
        • SHA256 d6ee011149429d7bcc9663011a98bc420a730123f9eb3f484af86fb9392d7531
        • MD5 SHA1 SHA512 TLSH

        8twc8chs.exe

        • Path C:\Users\Admin\AppData\Roaming\8twc8chs.exe
        • Size 45KB
        • SHA256 6d69c94e6b37c75a01c8ab2eb12eb5da0016001c9e2687cfaf45aec1aa98efbf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/852-0-0x0000000000A30000-0x0000000000A42000-memory.dmp

        memory/852-1-0x0000000005570000-0x0000000005580000-memory.dmp

        memory/852-2-0x00000000054B0000-0x000000000554C000-memory.dmp