Analysis

  • max time kernel
    7s
  • max time network
    179s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 15:25

General

  • Target
    21c444e3d7694472650bdb094f9da1425782e600961b4230278e9a89f2130576.exe
  • Size 45KB
  • Sample260707-strmsagz3j
  • SHA256 21c444e3d7694472650bdb094f9da1425782e600961b4230278e9a89f2130576
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • 103.109.100.136:80

  • 103.109.100.136:22

  • 103.109.100.136:8080

  • 103.109.100.136:8880

  • 103.109.100.136:2052

  • 103.109.100.136:2082

  • 103.109.100.136:2086

  • 103.109.100.136:2095

  • 103.109.100.136:443

  • 103.109.100.136:2053

  • 103.109.100.136:2083

  • 103.109.100.136:2087

  • 103.109.100.136:2096

  • 103.109.100.136:8443

Mutex
  • Eqs9aEKmkEQX

Attributes
  • delay

    0

  • install

    true

  • install_file

    6lpc1a.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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21c444e3d7694472650bdb094f9da1425782e600961b4230278e9a89f2130576.exe
    "C:\Users\Admin\AppData\Local\Temp\21c444e3d7694472650bdb094f9da1425782e600961b4230278e9a89f2130576.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3224
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "6lpc1a" /tr '"C:\Users\Admin\AppData\Roaming\6lpc1a.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2520
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "6lpc1a" /tr '"C:\Users\Admin\AppData\Roaming\6lpc1a.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5220
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCB1B.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5940
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2504
      • C:\Users\Admin\AppData\Roaming\6lpc1a.exe
        "C:\Users\Admin\AppData\Roaming\6lpc1a.exe"
        3⤵
          PID:4692
    • C:\Users\Admin\AppData\Roaming\6lpc1a.exe
      "C:\Users\Admin\AppData\Roaming\6lpc1a.exe"
      1⤵
        PID:3244

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            tmpCB1B.tmp.bat

            • Path C:\Users\Admin\AppData\Local\Temp\tmpCB1B.tmp.bat
            • Size 150B
            • SHA256 91b9d1831501227e30295f9f8612ce66c455f862daaa5e9856a20b7706f096f9
            • MD5 SHA1 SHA512 TLSH

            6lpc1a.exe

            • Path C:\Users\Admin\AppData\Roaming\6lpc1a.exe
            • Size 45KB
            • SHA256 21c444e3d7694472650bdb094f9da1425782e600961b4230278e9a89f2130576
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/3224-0-0x0000000074922000-0x0000000074923000-memory.dmp

            memory/3224-1-0x0000000000280000-0x0000000000292000-memory.dmp

            memory/3224-2-0x0000000074910000-0x00000000750CC000-memory.dmp

            memory/3224-3-0x0000000004E30000-0x0000000004ECC000-memory.dmp

            memory/3224-9-0x0000000074910000-0x00000000750CC000-memory.dmp

            memory/3244-12-0x0000000074910000-0x00000000750CC000-memory.dmp

            memory/3244-14-0x0000000074910000-0x00000000750CC000-memory.dmp