Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    05/11/2026, 14:27

General

  • Target
    675e1ae4cd1344129accc020ba24566c114252ddae638c2fdb47c6bd41e9f0dd.exe
  • Size 106KB
  • Sample261105-rss9jsgf29
  • SHA256 675e1ae4cd1344129accc020ba24566c114252ddae638c2fdb47c6bd41e9f0dd
  • 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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\675e1ae4cd1344129accc020ba24566c114252ddae638c2fdb47c6bd41e9f0dd.exe
    "C:\Users\Admin\AppData\Local\Temp\675e1ae4cd1344129accc020ba24566c114252ddae638c2fdb47c6bd41e9f0dd.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4760
    • C:\Users\Admin\AppData\Local\Temp\tjySNN.exe
      C:\Users\Admin\AppData\Local\Temp\tjySNN.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3180
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5dcc2640.bat" "
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:2580

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        k2[1].rar

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FB6DDX4X\k2[1].rar
        • Size 1B
        • SHA256 01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b
        • MD5 SHA1 SHA512

        0E191F21.exe

        • Path C:\Users\Admin\AppData\Local\Temp\0E191F21.exe
        • Size 1B
        • SHA256 08f271887ce94707da822d5263bae19d5519cb3614e0daedc4c7ce5dab7473f1
        • MD5 SHA1 SHA512

        5dcc2640.bat

        • Path C:\Users\Admin\AppData\Local\Temp\5dcc2640.bat
        • Size 187B
        • SHA256 385a07ba85b2fcb7b4158836e024dfb081bedca263ac23ad90cb337b5cb9a988
        • MD5 SHA1 SHA512 TLSH

        tjySNN.exe

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

        memory/3180-4-0x00000000007B0000-0x00000000007B9000-memory.dmp

        memory/3180-29-0x00000000007B0000-0x00000000007B9000-memory.dmp

        memory/4760-0-0x0000000000180000-0x00000000001A0000-memory.dmp

        memory/4760-28-0x0000000000180000-0x00000000001A0000-memory.dmp