Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-01-2025 01:52

General

  • Target

    749fc149009c66a4a953e2ed24d8996d2383af34563a56c1b89e21c79bc59436N.exe

  • Size

    78KB

  • MD5

    d01f061bc423d62d2092897a33451900

  • SHA1

    a036fb42cf0d6d0ff6c48e1f8a05550e589a4c51

  • SHA256

    749fc149009c66a4a953e2ed24d8996d2383af34563a56c1b89e21c79bc59436

  • SHA512

    42529965c1fe901f737fe71479d64c9e58c9173934c5633e98f3deb9fa53c26281c20a3ceb5968df6c71d3919f8fa61e812d5b342e343f69b3d6bb47bc791776

  • SSDEEP

    768:Uwckfpik6qYXy7dMkIwzsWUHUpOCdoR+vMiHfdOae/QGPL4vzZq2o9W7GsxBbPr:xFfh7dGs3wqOCSR6MesaeYGCq2iW7z

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

  • 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).

  • 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\749fc149009c66a4a953e2ed24d8996d2383af34563a56c1b89e21c79bc59436N.exe
    "C:\Users\Admin\AppData\Local\Temp\749fc149009c66a4a953e2ed24d8996d2383af34563a56c1b89e21c79bc59436N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:516
    • C:\Users\Admin\AppData\Local\Temp\LNuOql.exe
      C:\Users\Admin\AppData\Local\Temp\LNuOql.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1016
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\248f23a8.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\248f23a8.bat

    Filesize

    187B

    MD5

    5d3c2cf176c59e514f3d43a680e4828f

    SHA1

    c788b14837e21fd4ae9ceb666468c948dbc56942

    SHA256

    de04c8784664ce27a37021a2a1a966602626838c15393c20ce2db46633f64334

    SHA512

    1aee070eb761e88687c50ba87003375fd4a691187b7b99fa22e577b91a41e781ff084ee7297e252281aee77d95260b224a3b4c4b57dff4eaee35087d2780d2d5

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/516-0-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/516-14-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/1016-4-0x0000000000060000-0x0000000000069000-memory.dmp

    Filesize

    36KB

  • memory/1016-15-0x0000000000060000-0x0000000000069000-memory.dmp

    Filesize

    36KB