Resubmissions

03/08/2026, 16:07

260803-tky6yabh73

03/08/2026, 16:03

260803-tht47seq5z10

03/08/2026, 16:02

260803-tgrmpavtes5

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/08/2026, 16:03

General

  • Target
    pawno/pawno.exe
  • Size 313KB
  • Sample260803-tht47seq5z
  • SHA256 e58cc78ade6ddc2e59af19d5693983c39c8e0ab5d923bcb66337daeb78f25d6d
  • 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 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • 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.

  • Modifies registry class 10 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\pawno\pawno.exe
    "C:\Users\Admin\AppData\Local\Temp\pawno\pawno.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:672
    • C:\Users\Admin\AppData\Local\Temp\ptINEk.exe
      C:\Users\Admin\AppData\Local\Temp\ptINEk.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4868
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\3f164ea2.bat" "
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        PID:3360

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        3f164ea2.bat

        • Path C:\Users\Admin\AppData\Local\Temp\3f164ea2.bat
        • Size 187B
        • SHA256 f5d2f57ae9af990da53aa7d41f0c36a612af10689909f683dc36640f30beda5e
        • MD5 SHA1 SHA512 TLSH

        ptINEk.exe

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

        memory/672-0-0x0000000000400000-0x00000000004D8000-memory.dmp

        memory/672-7-0x00000000004D2000-0x00000000004D3000-memory.dmp

        memory/672-8-0x0000000000400000-0x00000000004D8000-memory.dmp

        memory/672-10-0x0000000000400000-0x00000000004D8000-memory.dmp

        memory/4868-4-0x0000000000550000-0x0000000000559000-memory.dmp

        memory/4868-12-0x0000000000550000-0x0000000000559000-memory.dmp