Analysis

  • max time kernel
    101s
  • max time network
    28s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    10-02-2025 15:28

General

  • Target

    6e6b262c311494e71bf791d74c70fc84b8d16f0feb516e5b21241a2dbe8a9e7e.exe

  • Size

    852KB

  • MD5

    26b338f1a3dda589c854a7cc0d96ec31

  • SHA1

    270d3dfe4d786abcaf0b29cbf3170daacd80ba00

  • SHA256

    6e6b262c311494e71bf791d74c70fc84b8d16f0feb516e5b21241a2dbe8a9e7e

  • SHA512

    2eba8da01032a23432973f55ec87fd2ff001a96ba5d6f7f09af1ffd464734a461b3648aeb8469fde93106158b05620ef78c6458800c145567c10468d4fe15f80

  • SSDEEP

    24576:kJ4v5HJtieuSvRQtKCa3gG7AO93GOvPmOOR0OMOO6OO+xyrImZXMvdO9OQF0pn8h:ksHRvRDCeg

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 2 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 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.

  • Modifies registry class 25 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6e6b262c311494e71bf791d74c70fc84b8d16f0feb516e5b21241a2dbe8a9e7e.exe
    "C:\Users\Admin\AppData\Local\Temp\6e6b262c311494e71bf791d74c70fc84b8d16f0feb516e5b21241a2dbe8a9e7e.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Users\Admin\AppData\Local\Temp\NmSJFm.exe
      C:\Users\Admin\AppData\Local\Temp\NmSJFm.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1496
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\18072d55.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\LW44N8OS\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\18072d55.bat

    Filesize

    187B

    MD5

    8e6fa5188473e043231240ced3cf39cd

    SHA1

    53acc59a6c6e0179fb7bca18f9cefe360a054994

    SHA256

    e93646eff0639efb398a0c6e6637c290a3e9918b9ce1f9a60b5734a4ad1f6ded

    SHA512

    7ce5bc9c36566c730c190fe41fe5b7cb85a3fab7b7a83cce584d04316cd601f13ae1a5f00984edce4d4e1c4fb794f9b4e8099cbf80f5efec9bd41b5d221d631e

  • C:\Users\Admin\AppData\Local\Temp\1ABC61FC.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • \Users\Admin\AppData\Local\Temp\NmSJFm.exe

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1496-11-0x0000000000110000-0x0000000000119000-memory.dmp

    Filesize

    36KB

  • memory/1496-37-0x0000000000110000-0x0000000000119000-memory.dmp

    Filesize

    36KB

  • memory/1956-21-0x0000000006060000-0x0000000006161000-memory.dmp

    Filesize

    1.0MB

  • memory/1956-20-0x0000000005C70000-0x0000000005C79000-memory.dmp

    Filesize

    36KB

  • memory/1956-22-0x0000000005C70000-0x0000000005D71000-memory.dmp

    Filesize

    1.0MB

  • memory/1956-23-0x0000000000400000-0x0000000000501000-memory.dmp

    Filesize

    1.0MB

  • memory/1956-0-0x0000000000400000-0x0000000000501000-memory.dmp

    Filesize

    1.0MB

  • memory/1956-17-0x0000000006060000-0x0000000006069000-memory.dmp

    Filesize

    36KB

  • memory/1956-13-0x0000000005040000-0x0000000005042000-memory.dmp

    Filesize

    8KB

  • memory/1956-4-0x0000000000230000-0x0000000000239000-memory.dmp

    Filesize

    36KB

  • memory/1956-63-0x0000000000230000-0x0000000000239000-memory.dmp

    Filesize

    36KB