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Analysis

  • max time kernel
    151s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/12/2022, 18:43

General

  • Target

    de44201d7dab72507b2f94a753ebe3f1148ef62b95742f4da32a5b273d89e074.exe

  • Size

    841KB

  • MD5

    af5fa50b86feb6b2b21fb291a7e04a4f

  • SHA1

    a2c632df5c8946012bd9c35ba9f95f8c3fc6381f

  • SHA256

    de44201d7dab72507b2f94a753ebe3f1148ef62b95742f4da32a5b273d89e074

  • SHA512

    fc974d14a54db05cd8466f5c30627242fd75ed77f2b343c0bfa7d0f3bdae4a319f23d8a0484c12ea53f30440afb24c16db536f3e0cee5850afcf70d3d3a8abab

  • SSDEEP

    24576:681dAtsOGdZowWGrpTsRY3KrfuM1kI5YfI12Or:5AtsnbDWxq/ukI5euHr

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 10 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 19 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de44201d7dab72507b2f94a753ebe3f1148ef62b95742f4da32a5b273d89e074.exe
    "C:\Users\Admin\AppData\Local\Temp\de44201d7dab72507b2f94a753ebe3f1148ef62b95742f4da32a5b273d89e074.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:4808
    • C:\ProgramData\bsprotection.exe
      C:\ProgramData\bsprotection.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Writes to the Master Boot Record (MBR)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:5088
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 728
        3⤵
        • Program crash
        PID:4092
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 728
        3⤵
        • Program crash
        PID:2200
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1064
        3⤵
        • Program crash
        PID:2168
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1064
        3⤵
        • Program crash
        PID:1512
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1240
        3⤵
        • Program crash
        PID:3664
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1248
        3⤵
        • Program crash
        PID:3700
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1236
        3⤵
        • Program crash
        PID:2480
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1268
        3⤵
        • Program crash
        PID:3816
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1276
        3⤵
        • Program crash
        PID:2980
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 1732
        3⤵
        • Program crash
        PID:1260
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5088 -ip 5088
    1⤵
      PID:856
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 5088 -ip 5088
      1⤵
        PID:2304
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 5088 -ip 5088
        1⤵
          PID:4796
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5088 -ip 5088
          1⤵
            PID:4904
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 5088 -ip 5088
            1⤵
              PID:4636
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 5088 -ip 5088
              1⤵
                PID:3736
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5088 -ip 5088
                1⤵
                  PID:3708
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5088 -ip 5088
                  1⤵
                    PID:1360
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 5088 -ip 5088
                    1⤵
                      PID:1464
                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                      1⤵
                      • Modifies data under HKEY_USERS
                      • Suspicious use of SetWindowsHookEx
                      PID:2252
                    • C:\Windows\system32\sihost.exe
                      sihost.exe
                      1⤵
                      • Suspicious use of FindShellTrayWindow
                      PID:1600
                    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                      1⤵
                      • Modifies data under HKEY_USERS
                      • Suspicious use of SetWindowsHookEx
                      PID:1636
                    • C:\Windows\system32\sihost.exe
                      sihost.exe
                      1⤵
                      • Suspicious use of FindShellTrayWindow
                      PID:4780
                    • C:\Windows\system32\sihost.exe
                      sihost.exe
                      1⤵
                      • Suspicious use of FindShellTrayWindow
                      PID:1644
                    • C:\Windows\system32\sihost.exe
                      sihost.exe
                      1⤵
                      • Suspicious use of FindShellTrayWindow
                      PID:4420
                    • C:\Windows\system32\sihost.exe
                      sihost.exe
                      1⤵
                      • Suspicious use of FindShellTrayWindow
                      PID:792
                    • C:\Windows\system32\sihost.exe
                      sihost.exe
                      1⤵
                      • Suspicious use of FindShellTrayWindow
                      PID:1696
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 5088 -ip 5088
                      1⤵
                        PID:4416

                      Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

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                      Downloads

                      • C:\ProgramData\bsprotection.exe

                        Filesize

                        825KB

                        MD5

                        a6fb70441f47faaa26550b6bf87ff7d1

                        SHA1

                        c3d6152b08b5bc9295d4769b2f148211cf0039c6

                        SHA256

                        27eb7c6d0203a0ecf5d1ecac1637890abeb1fb01dc24bdf615f53b7a932b2caa

                        SHA512

                        c1b0387bb30545d30d0eabfec48331c0958d88ab53f7765ab30c511f178ffcfda15e099a185edf142f6c47521425372ce952cb31f92aee5d04cbcaa08e40af63

                      • C:\ProgramData\bsprotection.exe

                        Filesize

                        825KB

                        MD5

                        a6fb70441f47faaa26550b6bf87ff7d1

                        SHA1

                        c3d6152b08b5bc9295d4769b2f148211cf0039c6

                        SHA256

                        27eb7c6d0203a0ecf5d1ecac1637890abeb1fb01dc24bdf615f53b7a932b2caa

                        SHA512

                        c1b0387bb30545d30d0eabfec48331c0958d88ab53f7765ab30c511f178ffcfda15e099a185edf142f6c47521425372ce952cb31f92aee5d04cbcaa08e40af63

                      • memory/4808-132-0x0000000000400000-0x00000000004EA000-memory.dmp

                        Filesize

                        936KB

                      • memory/4808-133-0x0000000000400000-0x00000000004EA000-memory.dmp

                        Filesize

                        936KB

                      • memory/4808-140-0x0000000000400000-0x00000000004EA000-memory.dmp

                        Filesize

                        936KB

                      • memory/5088-137-0x0000000000400000-0x0000000000A1C000-memory.dmp

                        Filesize

                        6.1MB

                      • memory/5088-139-0x0000000000400000-0x0000000000A1C000-memory.dmp

                        Filesize

                        6.1MB

                      • memory/5088-141-0x0000000000400000-0x0000000000A1C000-memory.dmp

                        Filesize

                        6.1MB