Analysis

  • max time kernel
    9s
  • max time network
    10s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/01/2025, 02:44

Errors

Reason
Machine shutdown

General

  • Target

    2025-01-21_1f4ef1f21b247dd569840d77cd1ea29d_smoke-loader_wapomi.exe

  • Size

    64KB

  • MD5

    1f4ef1f21b247dd569840d77cd1ea29d

  • SHA1

    941b9f2952392ec32c836885685cad234b23bc58

  • SHA256

    554a09b7c092447a32dbb65ad47b8ff62394933412b35babf6352cfd917cc6d8

  • SHA512

    087389a8e87f5fffcc9e69618a0543b1c7cc18d7152304cab01db4ac612bad6f1d1223ab8c6dfe46f7804e614842d1706a66b59bc338f52be308eab5fb339731

  • SSDEEP

    768:7E09MOEzWGoOIx2qCZVZmj+Wg5VK2LDakrDZ5yS/wwHA49kszNAY1XKoJc4P1c2m:/7w73bUNMMkrDry+6UtctGCq2iW7z

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
  • Adds Run key to start application 2 TTPs 2 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-21_1f4ef1f21b247dd569840d77cd1ea29d_smoke-loader_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-21_1f4ef1f21b247dd569840d77cd1ea29d_smoke-loader_wapomi.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:768
    • C:\Users\Admin\AppData\Local\Temp\wxA.exe
      C:\Users\Admin\AppData\Local\Temp\wxA.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      PID:1484
    • C:\Windows\SysWOW64\shutdown.exe
      "C:\Windows\System32\shutdown.exe" /r /t 6 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2192
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 2503326475 /t REG_SZ /d "C:\Users\Admin\2503326475\2503326475.exe" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4968
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 2503326475 /t REG_SZ /d "C:\Users\Admin\2503326475\2503326475.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:4168
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /v 2503326475_del /t REG_SZ /d "cmd /c del \"C:\Users\Admin\AppData\Local\Temp\2025-01-21_1f4ef1f21b247dd569840d77cd1ea29d_smoke-loader_wapomi.exe\"" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3340
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /v 2503326475_del /t REG_SZ /d "cmd /c del \"C:\Users\Admin\AppData\Local\Temp\2025-01-21_1f4ef1f21b247dd569840d77cd1ea29d_smoke-loader_wapomi.exe\"" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:4488
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 768 -s 880
      2⤵
      • Program crash
      PID:2276
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 768 -ip 768
    1⤵
      PID:2428
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x4 /state0:0xa3921055 /state1:0x41c64e6d
      1⤵
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:5024

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\2503326475\2503326475.exe

      Filesize

      72KB

      MD5

      f11d8f6f870f0152a16edeb9cfc09ac4

      SHA1

      c3a4137f092b5e20c6a8a84b19870081e0cc6ef4

      SHA256

      53651512254616a35c950201daf476eb90d5d02e46bead05c393d442ebd88280

      SHA512

      8dfed5924112664c55e693b7022170e2ee0d89145c4035ba5767a4fae52996aa999b487a5f52f87a5d5f0798cb8174d8fe29ab16cdd885bf90ad54e3e7c2b08c

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

      Filesize

      15KB

      MD5

      f7d21de5c4e81341eccd280c11ddcc9a

      SHA1

      d4e9ef10d7685d491583c6fa93ae5d9105d815bd

      SHA256

      4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

      SHA512

      e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

    • memory/768-0-0x0000000000400000-0x0000000000425000-memory.dmp

      Filesize

      148KB

    • memory/768-8-0x00000000005A0000-0x00000000005A1000-memory.dmp

      Filesize

      4KB

    • memory/768-7-0x00000000005A0000-0x00000000005A1000-memory.dmp

      Filesize

      4KB

    • memory/768-10-0x00000000005A0000-0x00000000005A1000-memory.dmp

      Filesize

      4KB

    • memory/768-12-0x0000000000400000-0x0000000000425000-memory.dmp

      Filesize

      148KB

    • memory/1484-5-0x0000000000DE0000-0x0000000000DE9000-memory.dmp

      Filesize

      36KB

    • memory/1484-16-0x0000000000DE0000-0x0000000000DE9000-memory.dmp

      Filesize

      36KB