Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 21:45

General

  • Target
    0b654fa905c08f9a322deca77896caeba7e0198060677fd9664cf72e29fa4313.exe
  • Size 45KB
  • Sample260803-1mhejaybre
  • SHA256 0b654fa905c08f9a322deca77896caeba7e0198060677fd9664cf72e29fa4313
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • hentaivietsub.com:80

  • hentaivietsub.com:22

  • hentaivietsub.com:8080

  • hentaivietsub.com:8880

  • hentaivietsub.com:2052

  • hentaivietsub.com:2082

  • hentaivietsub.com:2086

  • hentaivietsub.com:2095

  • hentaivietsub.com:443

  • hentaivietsub.com:2053

  • hentaivietsub.com:2083

  • hentaivietsub.com:2087

  • hentaivietsub.com:2096

  • hentaivietsub.com:8443

  • www.hentaivietsub.com:80

  • www.hentaivietsub.com:22

  • www.hentaivietsub.com:8080

  • www.hentaivietsub.com:8880

  • www.hentaivietsub.com:2052

  • www.hentaivietsub.com:2082

Mutex
  • HC9Ivdc5VJc2

Attributes
  • delay

    0

  • install

    true

  • install_file

    l38l1p.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
  • Outbound SSH connection to public host 2 TTPs 6 IoCs

    SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b654fa905c08f9a322deca77896caeba7e0198060677fd9664cf72e29fa4313.exe
    "C:\Users\Admin\AppData\Local\Temp\0b654fa905c08f9a322deca77896caeba7e0198060677fd9664cf72e29fa4313.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4344
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "l38l1p" /tr '"C:\Users\Admin\AppData\Roaming\l38l1p.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4628
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "l38l1p" /tr '"C:\Users\Admin\AppData\Roaming\l38l1p.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5704
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1B00.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4992
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4368
      • C:\Users\Admin\AppData\Roaming\l38l1p.exe
        "C:\Users\Admin\AppData\Roaming\l38l1p.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4320
  • C:\Users\Admin\AppData\Roaming\l38l1p.exe
    "C:\Users\Admin\AppData\Roaming\l38l1p.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3464

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp1B00.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp1B00.tmp.bat
        • Size 150B
        • SHA256 7650ae05e34342967e2d0335db64e3d9c954c9634a20d9761375d4512d94ff6b
        • MD5 SHA1 SHA512 TLSH

        l38l1p.exe

        • Path C:\Users\Admin\AppData\Roaming\l38l1p.exe
        • Size 45KB
        • SHA256 0b654fa905c08f9a322deca77896caeba7e0198060677fd9664cf72e29fa4313
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3464-12-0x0000000074540000-0x0000000074CFC000-memory.dmp

        memory/3464-14-0x0000000074540000-0x0000000074CFC000-memory.dmp

        memory/4344-0-0x00000000746C2000-0x00000000746C3000-memory.dmp

        memory/4344-1-0x0000000000C20000-0x0000000000C32000-memory.dmp

        memory/4344-2-0x00000000746B0000-0x0000000074E6C000-memory.dmp

        memory/4344-3-0x0000000005760000-0x00000000057FC000-memory.dmp

        memory/4344-8-0x00000000746B0000-0x0000000074E6C000-memory.dmp