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Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2024, 05:14

General

  • Target

    8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5.exe

  • Size

    104KB

  • MD5

    0f3ea0f5dd4f63c920b1985ece3f7b4f

  • SHA1

    a2b827719e963078f0bfe3648b83ea148851d96d

  • SHA256

    8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5

  • SHA512

    3fade54ae287a8e28ca44fcceb0372819668574df394a84a851801edae8f4ea080d4b47bb55bce33721528087d3dcc233256fa9cbb13edaf1b15bb88e3b0d520

  • SSDEEP

    1536:DFEL0c3++wG5NlKOln9N7oKsMmuB2IMokC+0FfHYToSMygGCq2iW7zq:DFUxlnjmDXokC+GfHYToSMTGCHm

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • 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
  • 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\8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5.exe
    "C:\Users\Admin\AppData\Local\Temp\8fe8638fc0de6cc719a93d19c35becb82f06f1c1d00f09e3e9afb62f72b5a7a5.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Users\Admin\AppData\Local\Temp\MfmirF.exe
      C:\Users\Admin\AppData\Local\Temp\MfmirF.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2432
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\07951f50.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\7CNUR30T\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\07951f50.bat

    Filesize

    187B

    MD5

    5a70233f752d1eca778f26832fe89c91

    SHA1

    64d1978e72f73e28cb9dda905d145922c96b647f

    SHA256

    6fcf662b04171f87dcd0d1d827a05ae7dce15879cc78db5e87fa203352520001

    SHA512

    86426dfd7a2b3b903179415a9102a22d321673ea3e424f597ba211491c1cc726fc3d91b5444cdbf58a8ec3d262487cce1d350f56c1bce1feeb38feff5274a351

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/2432-36-0x0000000001170000-0x0000000001179000-memory.dmp

    Filesize

    36KB

  • memory/3024-0-0x0000000000040000-0x0000000000060000-memory.dmp

    Filesize

    128KB

  • memory/3024-4-0x0000000000110000-0x0000000000119000-memory.dmp

    Filesize

    36KB

  • memory/3024-9-0x0000000000110000-0x0000000000119000-memory.dmp

    Filesize

    36KB

  • memory/3024-14-0x0000000000040000-0x0000000000060000-memory.dmp

    Filesize

    128KB