Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 04:33

General

  • Target
    9bf8a46cc8c1fb92690fe4de332cda872b88b19343fad526694439374c73dbf1.exe
  • Size 3.5MB
  • Sample260831-e6x4fadk6z
  • SHA256 9bf8a46cc8c1fb92690fe4de332cda872b88b19343fad526694439374c73dbf1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • bdaejec

C2
  • ddos.dnsnb8.net

Signatures

  • Family: Bdaejec

    Bdaejec is a backdoor written in C++.

  • Detects Bdaejec Backdoor. 1 IoCs

    Bdaejec is backdoor written in C++.

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 3 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 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 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9bf8a46cc8c1fb92690fe4de332cda872b88b19343fad526694439374c73dbf1.exe
    "C:\Users\Admin\AppData\Local\Temp\9bf8a46cc8c1fb92690fe4de332cda872b88b19343fad526694439374c73dbf1.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2624
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a6FB.bat
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3320
      • C:\Users\Admin\AppData\Local\Temp\9bf8a46cc8c1fb92690fe4de332cda872b88b19343fad526694439374c73dbf1.exe
        "C:\Users\Admin\AppData\Local\Temp\9bf8a46cc8c1fb92690fe4de332cda872b88b19343fad526694439374c73dbf1.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5752
        • C:\Users\Admin\AppData\Local\Temp\sjuK.exe
          C:\Users\Admin\AppData\Local\Temp\sjuK.exe
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2684
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\56ab321c.bat" "
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            PID:1916
    • C:\Windows\Logo1_.exe
      C:\Windows\Logo1_.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1936
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5468
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1468

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        MicrosoftEdgeUpdateBroker.exe

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.185.27\MicrosoftEdgeUpdateBroker.exe
        • Size 124KB
        • SHA256 90b8713b9d5b30a6ebd2ff4629a0dee5d458461dde9ead027438e712fdc41196
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Uninstall.exe

        • Path C:\Program Files\7-Zip\Uninstall.exe
        • Size 57KB
        • SHA256 dfcfbc8b79e363cbac4a6d81d5657a2e0f1b8baa99c7e432ef30f52736c2e655
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vcredist_x86.exe

        • Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
        • Size 481KB
        • SHA256 d5fbaf5c0d8e313d4dad23b28cac4256c5dbed6ab3b0d797e2971f30c5e095ad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$a6FB.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$a6FB.bat
        • Size 721B
        • SHA256 498e719812ab0e9f15a16db50f2a73df10b00eea339772d624f97efb9e83f4e6
        • MD5 SHA1 SHA512 TLSH

        56ab321c.bat

        • Path C:\Users\Admin\AppData\Local\Temp\56ab321c.bat
        • Size 183B
        • SHA256 cbe0bc2a96b561363a7bbe78e3cbca44706be9cb5a2b55b0597b900c1bc22bde
        • MD5 SHA1 SHA512 TLSH

        9bf8a46cc8c1fb92690fe4de332cda872b88b19343fad526694439374c73dbf1.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\9bf8a46cc8c1fb92690fe4de332cda872b88b19343fad526694439374c73dbf1.exe.exe
        • Size 3.5MB
        • SHA256 0c66d0fb1a3db426be93515ef0e7395a49a1fe8113c4363c3dc373edf25612b3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        sjuK.exe

        • Path C:\Users\Admin\AppData\Local\Temp\sjuK.exe
        • Size 15KB
        • SHA256 4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 26KB
        • SHA256 aebcc8a896333f477f901162da56dad01bb0f770737b56182a08a7909c179110
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _desktop.ini

        • Path F:\$RECYCLE.BIN\_desktop.ini
        • Size 9B
        • SHA256 48fc246849bbf8829b4f8949e19ffb9de4020b7e65df5ab0bdedfdbbdb956880
        • MD5 SHA1 SHA512

        memory/1936-1265-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/1936-5546-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/1936-30-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/1936-40-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/1936-48-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/1936-56-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/1936-10-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/1936-127-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/1936-5073-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/2624-15-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/2624-0-0x0000000000400000-0x0000000000434000-memory.dmp

        memory/2684-26-0x0000000000E80000-0x0000000000E89000-memory.dmp

        memory/2684-33-0x0000000000E80000-0x0000000000E89000-memory.dmp

        memory/5752-21-0x0000000000980000-0x0000000000D0C000-memory.dmp

        memory/5752-32-0x0000000000980000-0x0000000000D0C000-memory.dmp