Analysis

  • max time kernel
    94s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/11/2024, 03:36

General

  • Target

    2024-11-28_bcb707cdf84fca0a80f5c8bce9a684cf_smoke-loader_wapomi.exe

  • Size

    1.1MB

  • MD5

    bcb707cdf84fca0a80f5c8bce9a684cf

  • SHA1

    e2c7ada0f388030e81de8330b9397185f15ab64c

  • SHA256

    710a5e2223bc6eacee9e2fe508878b81a0aff5c75c303643ea3da806d1dd5eca

  • SHA512

    a388cb2c009c33a10ec66221e93c34532b0d77c818c3071ce3ee64ef54071c5436951ed023781790d4d899cf42ece7293dcaab341c5f69fd202e38ae74c1e223

  • SSDEEP

    12288:ZqOPajQUXXP8QvLWFx6Mo5rippDC7ee1hpls4Ey+:ZnajQEPnvg6PhWDC750

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).

  • Program crash 1 IoCs
  • 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 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-28_bcb707cdf84fca0a80f5c8bce9a684cf_smoke-loader_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-28_bcb707cdf84fca0a80f5c8bce9a684cf_smoke-loader_wapomi.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4396
    • C:\Users\Admin\AppData\Local\Temp\kgdiDS.exe
      C:\Users\Admin\AppData\Local\Temp\kgdiDS.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:4868
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\468d146f.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3336
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 1904
      2⤵
      • Program crash
      PID:1044
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4396 -ip 4396
    1⤵
      PID:1972

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\k2[1].rar

      Filesize

      4B

      MD5

      d3b07384d113edec49eaa6238ad5ff00

      SHA1

      f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

      SHA256

      b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

      SHA512

      0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

    • C:\Users\Admin\AppData\Local\Temp\468d146f.bat

      Filesize

      187B

      MD5

      40e0c514ef818652159b830089badfa1

      SHA1

      d4fadccf04c6ee7c71ba8fd84bf938b65a93e3f0

      SHA256

      812fc8c0bfcd7e86168ffa940b3ba4d29147a9610a27f0e58aac5d8ac18cb7b4

      SHA512

      8b07ccf78087e932c7a0b4c9b74b5d806e0fff5330a035de657366ded267000b0e5999fc7f9e5171fe509c2331b3aed3448176b5f0c339b3413c5b498fd0291a

    • C:\Users\Admin\AppData\Local\Temp\63A5425E.exe

      Filesize

      4B

      MD5

      20879c987e2f9a916e578386d499f629

      SHA1

      c7b33ddcc42361fdb847036fc07e880b81935d5d

      SHA256

      9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

      SHA512

      bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

      Filesize

      15KB

      MD5

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

    • memory/4396-0-0x0000000000400000-0x0000000000523000-memory.dmp

      Filesize

      1.1MB

    • memory/4396-48-0x0000000000400000-0x0000000000523000-memory.dmp

      Filesize

      1.1MB

    • memory/4868-4-0x0000000000E50000-0x0000000000E59000-memory.dmp

      Filesize

      36KB

    • memory/4868-46-0x0000000000E50000-0x0000000000E59000-memory.dmp

      Filesize

      36KB