Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/07/2026, 11:07

General

  • Target
    c68a2cd9f882a01216192fea67281b60039b55c8f08d1e89196b31ef4af6eec7.exe
  • Size 45KB
  • Sample260711-m77y2agy6m
  • SHA256 c68a2cd9f882a01216192fea67281b60039b55c8f08d1e89196b31ef4af6eec7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexnhu.com:80

  • sexnhu.com:22

  • sexnhu.com:8080

  • sexnhu.com:8880

  • sexnhu.com:2052

  • sexnhu.com:2082

  • sexnhu.com:2086

  • sexnhu.com:2095

  • sexnhu.com:443

  • sexnhu.com:2053

  • sexnhu.com:2083

  • sexnhu.com:2087

  • sexnhu.com:2096

  • sexnhu.com:8443

  • www.sexnhu.com:80

  • www.sexnhu.com:22

  • www.sexnhu.com:8080

  • www.sexnhu.com:8880

  • www.sexnhu.com:2052

  • www.sexnhu.com:2082

Mutex
  • HXjlgLSI9nZQ

Attributes
  • delay

    0

  • install

    true

  • install_file

    nbsjib.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 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c68a2cd9f882a01216192fea67281b60039b55c8f08d1e89196b31ef4af6eec7.exe
    "C:\Users\Admin\AppData\Local\Temp\c68a2cd9f882a01216192fea67281b60039b55c8f08d1e89196b31ef4af6eec7.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "nbsjib" /tr '"C:\Users\Admin\AppData\Roaming\nbsjib.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2904
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "nbsjib" /tr '"C:\Users\Admin\AppData\Roaming\nbsjib.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2192
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC59D.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5520
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4580
      • C:\Users\Admin\AppData\Roaming\nbsjib.exe
        "C:\Users\Admin\AppData\Roaming\nbsjib.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5560
  • C:\Users\Admin\AppData\Roaming\nbsjib.exe
    "C:\Users\Admin\AppData\Roaming\nbsjib.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4684

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpC59D.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpC59D.tmp.bat
        • Size 150B
        • SHA256 18b51eeddd88e17167865615f760d05cc1345220c18453159da4b66b4af6eca2
        • MD5 SHA1 SHA512 TLSH

        nbsjib.exe

        • Path C:\Users\Admin\AppData\Roaming\nbsjib.exe
        • Size 45KB
        • SHA256 c68a2cd9f882a01216192fea67281b60039b55c8f08d1e89196b31ef4af6eec7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2004-0-0x0000000074DB2000-0x0000000074DB3000-memory.dmp

        memory/2004-1-0x00000000009B0000-0x00000000009C2000-memory.dmp

        memory/2004-2-0x0000000074DA0000-0x000000007555C000-memory.dmp

        memory/2004-3-0x0000000005550000-0x00000000055EC000-memory.dmp

        memory/2004-8-0x0000000074DA0000-0x000000007555C000-memory.dmp

        memory/4684-12-0x0000000074C30000-0x00000000753EC000-memory.dmp

        memory/4684-14-0x0000000074C30000-0x00000000753EC000-memory.dmp