Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 17:44

General

  • Target

    2024-12-08_b417c90019f0ca1b6c228b4b52f26a9c_smoke-loader_wapomi.exe

  • Size

    1.1MB

  • MD5

    b417c90019f0ca1b6c228b4b52f26a9c

  • SHA1

    8b7fbf89a595b182aae602c2417fcab7cb3e7b06

  • SHA256

    08f8ad6289e8891be5412c7db870c32f80e3ea1394ae2fb2aff29057eb8e991d

  • SHA512

    54892bf96ee18f04f48319b7ca0a82a1ecdc3a37f618124ed11c5e3659b071d1b822ffae039fe68df4d4cb7e24da417afb81784cae1b7182714a5140d68584a1

  • 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\2024-12-08_b417c90019f0ca1b6c228b4b52f26a9c_smoke-loader_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-08_b417c90019f0ca1b6c228b4b52f26a9c_smoke-loader_wapomi.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4228
    • C:\Users\Admin\AppData\Local\Temp\PZdtLo.exe
      C:\Users\Admin\AppData\Local\Temp\PZdtLo.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:1304
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\712a52d6.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5020
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4228 -s 1444
      2⤵
      • Program crash
      PID:2488
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4228 -ip 4228
    1⤵
      PID:4536

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\712a52d6.bat

      Filesize

      187B

      MD5

      45a2e281b42c537c034c4fd3a1574131

      SHA1

      2ba1a0490d9d3322c732d592d65c0d28962eb753

      SHA256

      8005aa8cc5e622e7fbc6eb98e2a4029da9075b843f0086e4b32ee0a16109d330

      SHA512

      9a51de9a1bdf9bf7ba63607d12179cbe4ba1a0066e62e9bf141b403e504afe3c8f36587302c79fa7caa705171aa9d74e73753eda232ba3e0c883013dd6d8e2e0

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

      Filesize

      15KB

      MD5

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

    • memory/1304-4-0x0000000000840000-0x0000000000849000-memory.dmp

      Filesize

      36KB

    • memory/1304-8-0x0000000000840000-0x0000000000849000-memory.dmp

      Filesize

      36KB

    • memory/4228-0-0x0000000000400000-0x0000000000523000-memory.dmp

      Filesize

      1.1MB

    • memory/4228-7-0x0000000000400000-0x0000000000523000-memory.dmp

      Filesize

      1.1MB