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Analysis

  • max time kernel
    106s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2024, 15:51

General

  • Target

    2024-12-31_36f13bfb14c3a39cb69fccaed59e932e_smoke-loader_wapomi.exe

  • Size

    1.1MB

  • MD5

    36f13bfb14c3a39cb69fccaed59e932e

  • SHA1

    9422ce9d84b0f04727ae89e4ee441f4d77e89550

  • SHA256

    7bc7fa81606058265fbc3e7e9b6907ade147cc4611fdad2764e0def37a7ace76

  • SHA512

    96f65896e0fac19312b3b7300fdcabb22d3246998db2ef1db596072468fe53412323b756002627253d7934f84b76aed74c37844f8312b8d0b3bf9920bb1ccffa

  • 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\2024-12-31_36f13bfb14c3a39cb69fccaed59e932e_smoke-loader_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-31_36f13bfb14c3a39cb69fccaed59e932e_smoke-loader_wapomi.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5072
    • C:\Users\Admin\AppData\Local\Temp\gWdImo.exe
      C:\Users\Admin\AppData\Local\Temp\gWdImo.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:1940
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7843459c.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2352
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5072 -s 1908
      2⤵
      • Program crash
      PID:4984
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5072 -ip 5072
    1⤵
      PID:3752

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\7843459c.bat

      Filesize

      187B

      MD5

      f94feb8c28ca8c3560aae6f492af0cdb

      SHA1

      dfdb4b4345fc08a6e818bf14cae5e0637376edb9

      SHA256

      c3379702f76ef9ac2a7f1d2f5738c68606e37e35c3d4f2301307df4e68b31316

      SHA512

      8679f2e174e1934ae133932862873d123ee157c96d3e5465847cb8d6d976b87f29695a75f520032839501b062ba264ea6db06459503eaed67466dc0f15b6fa74

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

      Filesize

      15KB

      MD5

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

    • memory/1940-4-0x00000000008E0000-0x00000000008E9000-memory.dmp

      Filesize

      36KB

    • memory/1940-8-0x00000000008E0000-0x00000000008E9000-memory.dmp

      Filesize

      36KB

    • memory/5072-0-0x0000000000400000-0x0000000000523000-memory.dmp

      Filesize

      1.1MB

    • memory/5072-7-0x0000000000400000-0x0000000000523000-memory.dmp

      Filesize

      1.1MB