Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2024 10:22

General

  • Target

    3bc6b2e849f61c52f74a7c597892906c820882fc1cc5e51ff912a1a282db3a30N.exe

  • Size

    1.2MB

  • MD5

    7b63b96026b70bdf79b4f094905d8a50

  • SHA1

    cc637ea01e8c0232cd6a22ab7ca884936359a394

  • SHA256

    3bc6b2e849f61c52f74a7c597892906c820882fc1cc5e51ff912a1a282db3a30

  • SHA512

    85e4f07262a30d302de22e8ca8ad3e4eed9e060e5d9f9403522e0f7fef38769ca74dc38addf323c8a21a76e40a8d9c7d29a2d8f5419757f178c3a1a327c45dd2

  • SSDEEP

    24576:94QSoaZeSaWi8yus7RMiP84Icjj9TRWT65DNy09x/b:+vhwF7RMu84V9TwT657Vb

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Detects Bdaejec Backdoor. 2 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
  • Loads dropped DLL 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3bc6b2e849f61c52f74a7c597892906c820882fc1cc5e51ff912a1a282db3a30N.exe
    "C:\Users\Admin\AppData\Local\Temp\3bc6b2e849f61c52f74a7c597892906c820882fc1cc5e51ff912a1a282db3a30N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2508
    • C:\Users\Admin\AppData\Local\Temp\ZXELCf.exe
      C:\Users\Admin\AppData\Local\Temp\ZXELCf.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1320
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\009538bd.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\S8GI6B9B\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\009538bd.bat

    Filesize

    187B

    MD5

    480ea6f03da13eabffde235546c36828

    SHA1

    4f6a77370e50484c2291884b0f54a56f2628a322

    SHA256

    df2a29ec4491004c6904c9d639349f3db5b290b3299ab37fd5f258d6fd27b47c

    SHA512

    2b8f3cf2488ee9414eff0c97f95bd7c8cd62f5815905a4322f282d3e1e27109077060e5aac7b9e38a83ecff62f1228ab04da974963084831155dae780587562f

  • C:\Users\Admin\AppData\Local\Temp\4CF97DDA.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\ZXELCf.exe

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1320-11-0x00000000010E0000-0x00000000010E9000-memory.dmp

    Filesize

    36KB

  • memory/1320-54-0x00000000010E0000-0x00000000010E9000-memory.dmp

    Filesize

    36KB

  • memory/2508-9-0x0000000000E80000-0x000000000213E000-memory.dmp

    Filesize

    18.7MB

  • memory/2508-12-0x00000000001E0000-0x00000000001E9000-memory.dmp

    Filesize

    36KB

  • memory/2508-10-0x00000000001E0000-0x00000000001E9000-memory.dmp

    Filesize

    36KB

  • memory/2508-56-0x00000000001E0000-0x00000000001E2000-memory.dmp

    Filesize

    8KB

  • memory/2508-57-0x0000000000E80000-0x000000000213E000-memory.dmp

    Filesize

    18.7MB