Analysis

  • max time kernel
    94s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/01/2025, 19:24

General

  • Target

    2025-01-17_23f272a832f3e227af15ff8a0de5b9c1_bkransomware_wapomi.exe

  • Size

    326KB

  • MD5

    23f272a832f3e227af15ff8a0de5b9c1

  • SHA1

    f4d9b11539d11003ff2236464043fff84c2dc984

  • SHA256

    aeb5d1e6eeeea92ed22d0dc4501b3b47bde3a2868adc5d2b7b844430e90b2d74

  • SHA512

    235b386c319ed558c011a5fa92ebbd92690592eeca919141b5da90e43ab324a291f9de640fdf6ddd65460774f1a9a008525fa036d24455ac1d52a7530d5587d6

  • SSDEEP

    6144:NTwa5MBzGvRLdfyDNTBJYFoUXbUx9gBXRcj:H5azGvRtgNTnYbXbsaBc

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 WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-17_23f272a832f3e227af15ff8a0de5b9c1_bkransomware_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-17_23f272a832f3e227af15ff8a0de5b9c1_bkransomware_wapomi.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Users\Admin\AppData\Local\Temp\ntWARN.exe
      C:\Users\Admin\AppData\Local\Temp\ntWARN.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:1928
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2d4a7c08.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:848

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\k2[1].rar

          Filesize

          4B

          MD5

          d3b07384d113edec49eaa6238ad5ff00

          SHA1

          f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

          SHA256

          b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

          SHA512

          0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

        • C:\Users\Admin\AppData\Local\Temp\2d4a7c08.bat

          Filesize

          187B

          MD5

          b5d885424759278b94be81ccf275d046

          SHA1

          7d272d1d8aa90eb296b6ae5622e7497aa1782c24

          SHA256

          edc6b971456a7ce8e051074341a8bb089d849a5c15fdebb12824f285e91c329a

          SHA512

          85d97354f11bc26a98d3f5d26b8b36413cbb1746b50416a1845894932d742cccb527252057e1ac8f7b4d0889d53d4c1ba283fa51d20546c314a366cfd87d4bed

        • C:\Users\Admin\AppData\Local\Temp\3A443191.exe

          Filesize

          4B

          MD5

          20879c987e2f9a916e578386d499f629

          SHA1

          c7b33ddcc42361fdb847036fc07e880b81935d5d

          SHA256

          9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

          SHA512

          bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

          Filesize

          15KB

          MD5

          56b2c3810dba2e939a8bb9fa36d3cf96

          SHA1

          99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

          SHA256

          4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

          SHA512

          27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

        • memory/1116-0-0x0000000000BD0000-0x0000000000C27000-memory.dmp

          Filesize

          348KB

        • memory/1116-7-0x0000000000BD0000-0x0000000000C27000-memory.dmp

          Filesize

          348KB

        • memory/1928-4-0x00000000005B0000-0x00000000005B9000-memory.dmp

          Filesize

          36KB

        • memory/1928-28-0x00000000005B0000-0x00000000005B9000-memory.dmp

          Filesize

          36KB