Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    31/08/2026, 14:25

General

  • Target
    660966f1d5f3c101ec0514a32aaa119a54dba127ad37e4cfe08d5c32d2fee001.exe
  • Size 45KB
  • Sample260831-rrjcystdqe
  • SHA256 660966f1d5f3c101ec0514a32aaa119a54dba127ad37e4cfe08d5c32d2fee001
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexvietdam.blog:80

  • sexvietdam.blog:22

  • sexvietdam.blog:8080

  • sexvietdam.blog:8880

  • sexvietdam.blog:2052

  • sexvietdam.blog:2082

  • sexvietdam.blog:2086

  • sexvietdam.blog:2095

  • sexvietdam.blog:443

  • sexvietdam.blog:2053

  • sexvietdam.blog:2083

  • sexvietdam.blog:2087

  • sexvietdam.blog:2096

  • sexvietdam.blog:8443

  • www.sexvietdam.blog:80

  • www.sexvietdam.blog:22

  • www.sexvietdam.blog:8080

  • www.sexvietdam.blog:8880

  • www.sexvietdam.blog:2052

  • www.sexvietdam.blog:2082

Mutex
  • n2YMFYxQ6Afm

Attributes
  • delay

    0

  • install

    true

  • install_file

    2hl27hl.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
  • 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).

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\660966f1d5f3c101ec0514a32aaa119a54dba127ad37e4cfe08d5c32d2fee001.exe
    "C:\Users\Admin\AppData\Local\Temp\660966f1d5f3c101ec0514a32aaa119a54dba127ad37e4cfe08d5c32d2fee001.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2668
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "2hl27hl" /tr '"C:\Users\Admin\AppData\Roaming\2hl27hl.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1132
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "2hl27hl" /tr '"C:\Users\Admin\AppData\Roaming\2hl27hl.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4188
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1306.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3376
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1680
      • C:\Users\Admin\AppData\Roaming\2hl27hl.exe
        "C:\Users\Admin\AppData\Roaming\2hl27hl.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1324
  • C:\Users\Admin\AppData\Roaming\2hl27hl.exe
    "C:\Users\Admin\AppData\Roaming\2hl27hl.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:5116

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp1306.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp1306.tmp.bat
        • Size 151B
        • SHA256 2fb1578be491538f97727aaf6bff6ea6ab96ce149ce4c5b68427da092bf10193
        • MD5 SHA1 SHA512 TLSH

        2hl27hl.exe

        • Path C:\Users\Admin\AppData\Roaming\2hl27hl.exe
        • Size 45KB
        • SHA256 660966f1d5f3c101ec0514a32aaa119a54dba127ad37e4cfe08d5c32d2fee001
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2668-0-0x0000000000160000-0x0000000000172000-memory.dmp

        memory/2668-1-0x0000000004C40000-0x0000000004C50000-memory.dmp

        memory/2668-2-0x0000000004B10000-0x0000000004BAC000-memory.dmp

        memory/5116-10-0x0000000005430000-0x0000000005440000-memory.dmp

        memory/5116-13-0x0000000005430000-0x0000000005440000-memory.dmp