Analysis

  • max time kernel
    6s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/08/2026, 09:39

General

  • Target
    cea9f68dfd0340e3a89a119a525b7d03f802eb88228c7c6bce83308fa63e5e21.exe
  • Size 45KB
  • Sample260816-lml1dsvsfz
  • SHA256 cea9f68dfd0340e3a89a119a525b7d03f802eb88228c7c6bce83308fa63e5e21
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • e.streamforester.name:80

  • e.streamforester.name:22

  • e.streamforester.name:8080

  • e.streamforester.name:8880

  • e.streamforester.name:2052

  • e.streamforester.name:2082

  • e.streamforester.name:2086

  • e.streamforester.name:2095

  • e.streamforester.name:443

  • e.streamforester.name:2053

  • e.streamforester.name:2083

  • e.streamforester.name:2087

  • e.streamforester.name:2096

  • e.streamforester.name:8443

  • www.e.streamforester.name:80

  • www.e.streamforester.name:22

  • www.e.streamforester.name:8080

  • www.e.streamforester.name:8880

  • www.e.streamforester.name:2052

  • www.e.streamforester.name:2082

Mutex
  • jBNaO2xnFGIt

Attributes
  • delay

    0

  • install

    true

  • install_file

    csqnm.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).

  • 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\cea9f68dfd0340e3a89a119a525b7d03f802eb88228c7c6bce83308fa63e5e21.exe
    "C:\Users\Admin\AppData\Local\Temp\cea9f68dfd0340e3a89a119a525b7d03f802eb88228c7c6bce83308fa63e5e21.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5836
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "csqnm" /tr '"C:\Users\Admin\AppData\Roaming\csqnm.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4780
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "csqnm" /tr '"C:\Users\Admin\AppData\Roaming\csqnm.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2856
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp66EE.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1300
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5040
      • C:\Users\Admin\AppData\Roaming\csqnm.exe
        "C:\Users\Admin\AppData\Roaming\csqnm.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2036
  • C:\Users\Admin\AppData\Roaming\csqnm.exe
    "C:\Users\Admin\AppData\Roaming\csqnm.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3340

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp66EE.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp66EE.tmp.bat
        • Size 149B
        • SHA256 bcc1a9d0c11b3cff7e8700666845785c802056502cdcb20567fcc7e4152af79e
        • MD5 SHA1 SHA512 TLSH

        csqnm.exe

        • Path C:\Users\Admin\AppData\Roaming\csqnm.exe
        • Size 45KB
        • SHA256 cea9f68dfd0340e3a89a119a525b7d03f802eb88228c7c6bce83308fa63e5e21
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3340-12-0x0000000075080000-0x000000007583C000-memory.dmp

        memory/3340-14-0x0000000075080000-0x000000007583C000-memory.dmp

        memory/5836-0-0x00000000750A2000-0x00000000750A3000-memory.dmp

        memory/5836-1-0x0000000000600000-0x0000000000612000-memory.dmp

        memory/5836-2-0x0000000075090000-0x000000007584C000-memory.dmp

        memory/5836-3-0x00000000051C0000-0x000000000525C000-memory.dmp

        memory/5836-9-0x0000000075090000-0x000000007584C000-memory.dmp