Analysis

  • max time kernel
    190s
  • max time network
    244s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 18:56

General

  • Target

    163072595aef49197697d5bde6b1f4ead2d028a75bb28f04fda94510517bac47.exe

  • Size

    848KB

  • MD5

    cbfd582303e7789614a33bc0319b18c5

  • SHA1

    358551dfb3258aa681e13954bd9049e6a52a262d

  • SHA256

    163072595aef49197697d5bde6b1f4ead2d028a75bb28f04fda94510517bac47

  • SHA512

    e678c609646d36fe8a0fda84751dfcfd1cf9c1b8dac1b4f59e076d0ee9368cc71a27a81a3642e2b4ea0bb3565b5cbd7180e22eb2452dbd4898a9d83817bca527

  • SSDEEP

    24576:nMLqTK9fORLgS1/VigMFkn1CcRaWAibD:mqTK4yS1ggMFknI5W/f

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Jesusbuezeh

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\163072595aef49197697d5bde6b1f4ead2d028a75bb28f04fda94510517bac47.exe
    "C:\Users\Admin\AppData\Local\Temp\163072595aef49197697d5bde6b1f4ead2d028a75bb28f04fda94510517bac47.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1484
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        3⤵
          PID:1160
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1160 -s 184
            4⤵
            • Program crash
            PID:1284
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
          3⤵
            PID:4320
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1160 -ip 1160
        1⤵
          PID:4328
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1160 -ip 1160
          1⤵
            PID:1036

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt

            Filesize

            102B

            MD5

            bc8c0a4d68f9a238f05d1a5de114778a

            SHA1

            95a56cb0bf153d69401df831402abe49e0ebf6ff

            SHA256

            e890d6b4224047a27d25c88496ea0941c54a187a8101cff19243043e493b00dd

            SHA512

            49771b72359e58dcf4d5036aa0d08cc4dec3ffef03fc7ff6caef981db826ff5c1879925ed634e8fd1d74e2ec9b3ae9e8589af3423d5fedf67f081317d655215c

          • C:\Users\Admin\AppData\Roaming\Windows Update.exe

            Filesize

            848KB

            MD5

            cbfd582303e7789614a33bc0319b18c5

            SHA1

            358551dfb3258aa681e13954bd9049e6a52a262d

            SHA256

            163072595aef49197697d5bde6b1f4ead2d028a75bb28f04fda94510517bac47

            SHA512

            e678c609646d36fe8a0fda84751dfcfd1cf9c1b8dac1b4f59e076d0ee9368cc71a27a81a3642e2b4ea0bb3565b5cbd7180e22eb2452dbd4898a9d83817bca527

          • C:\Users\Admin\AppData\Roaming\Windows Update.exe

            Filesize

            848KB

            MD5

            cbfd582303e7789614a33bc0319b18c5

            SHA1

            358551dfb3258aa681e13954bd9049e6a52a262d

            SHA256

            163072595aef49197697d5bde6b1f4ead2d028a75bb28f04fda94510517bac47

            SHA512

            e678c609646d36fe8a0fda84751dfcfd1cf9c1b8dac1b4f59e076d0ee9368cc71a27a81a3642e2b4ea0bb3565b5cbd7180e22eb2452dbd4898a9d83817bca527

          • memory/1160-142-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/1160-141-0x0000000000000000-mapping.dmp

          • memory/1484-134-0x0000000000000000-mapping.dmp

          • memory/1484-137-0x0000000075230000-0x00000000757E1000-memory.dmp

            Filesize

            5.7MB

          • memory/1484-139-0x0000000075230000-0x00000000757E1000-memory.dmp

            Filesize

            5.7MB

          • memory/2004-138-0x0000000075230000-0x00000000757E1000-memory.dmp

            Filesize

            5.7MB

          • memory/2004-133-0x0000000075230000-0x00000000757E1000-memory.dmp

            Filesize

            5.7MB

          • memory/2004-132-0x0000000075230000-0x00000000757E1000-memory.dmp

            Filesize

            5.7MB

          • memory/4320-145-0x0000000000000000-mapping.dmp

          • memory/4320-146-0x0000000000400000-0x0000000000459000-memory.dmp

            Filesize

            356KB

          • memory/4320-148-0x0000000000400000-0x0000000000459000-memory.dmp

            Filesize

            356KB