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Analysis

  • max time kernel
    202s
  • max time network
    210s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 19:52

General

  • Target

    9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe

  • Size

    284KB

  • MD5

    5734d6763c7ac808169dbc753afb02ec

  • SHA1

    2523ac0705b7ddac7ab183473aa7b11ad91ddb2d

  • SHA256

    9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5

  • SHA512

    e5e41ac1f9378c160a59de32b54c8ecfe60870640120f65106f25ad96637a4cbca90f24fde36e3c0bdc449d3e58e0f522c197a9dbb0d18923e527882be66c67a

  • SSDEEP

    6144:PsDIMNVRb9ChrASE6j61ddLb3S2NZuUBxSh4H4:kDIMvRBorARdvSiZU1

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 4 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
    "C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
      "C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe"
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
        "C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Loads dropped DLL
        • Adds Run key to start application
        • Modifies system certificate store
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:864
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svchost.exe" CityScape Enable
          4⤵
          • Modifies Windows Firewall
          PID:1156
        • C:\Users\Admin\AppData\Roaming\svchost.exe
          /d C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:884
          • C:\Users\Admin\AppData\Roaming\svchost.exe
            /d C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
            5⤵
            • Executes dropped EXE
            • Writes to the Master Boot Record (MBR)
            • Suspicious use of SetThreadContext
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1944
            • C:\Users\Admin\AppData\Roaming\svchost.exe
              /d C:\Users\Admin\AppData\Local\Temp\9fbc0b8b304dad3901f2205e6f658bb6b418d6ebffd406b113b4f42cb02b05d5.exe
              6⤵
              • Modifies WinLogon for persistence
              • Executes dropped EXE
              • Deletes itself
              • Adds Run key to start application
              • Suspicious use of SetWindowsHookEx
              PID:1544

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    284KB

    MD5

    53b45b6e6b422bf0ba327fa99a84d8ef

    SHA1

    a073ee37d2620c465b9481adad0b0b7670275d9a

    SHA256

    c32db5364171296322aa9f588601c9b34f231768188e4de183d49b85b6d7fb69

    SHA512

    b9938bdd57ff5bec24039078cb659eb1a35d1e3aceff6af9e34f418c928db72c2994348e6a21c288470d3bb3a3b3d1caf799972db0a2be68ed7aa88439be2fd6

  • C:\Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    284KB

    MD5

    53b45b6e6b422bf0ba327fa99a84d8ef

    SHA1

    a073ee37d2620c465b9481adad0b0b7670275d9a

    SHA256

    c32db5364171296322aa9f588601c9b34f231768188e4de183d49b85b6d7fb69

    SHA512

    b9938bdd57ff5bec24039078cb659eb1a35d1e3aceff6af9e34f418c928db72c2994348e6a21c288470d3bb3a3b3d1caf799972db0a2be68ed7aa88439be2fd6

  • C:\Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    284KB

    MD5

    53b45b6e6b422bf0ba327fa99a84d8ef

    SHA1

    a073ee37d2620c465b9481adad0b0b7670275d9a

    SHA256

    c32db5364171296322aa9f588601c9b34f231768188e4de183d49b85b6d7fb69

    SHA512

    b9938bdd57ff5bec24039078cb659eb1a35d1e3aceff6af9e34f418c928db72c2994348e6a21c288470d3bb3a3b3d1caf799972db0a2be68ed7aa88439be2fd6

  • C:\Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    284KB

    MD5

    53b45b6e6b422bf0ba327fa99a84d8ef

    SHA1

    a073ee37d2620c465b9481adad0b0b7670275d9a

    SHA256

    c32db5364171296322aa9f588601c9b34f231768188e4de183d49b85b6d7fb69

    SHA512

    b9938bdd57ff5bec24039078cb659eb1a35d1e3aceff6af9e34f418c928db72c2994348e6a21c288470d3bb3a3b3d1caf799972db0a2be68ed7aa88439be2fd6

  • \Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    284KB

    MD5

    53b45b6e6b422bf0ba327fa99a84d8ef

    SHA1

    a073ee37d2620c465b9481adad0b0b7670275d9a

    SHA256

    c32db5364171296322aa9f588601c9b34f231768188e4de183d49b85b6d7fb69

    SHA512

    b9938bdd57ff5bec24039078cb659eb1a35d1e3aceff6af9e34f418c928db72c2994348e6a21c288470d3bb3a3b3d1caf799972db0a2be68ed7aa88439be2fd6

  • \Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    284KB

    MD5

    53b45b6e6b422bf0ba327fa99a84d8ef

    SHA1

    a073ee37d2620c465b9481adad0b0b7670275d9a

    SHA256

    c32db5364171296322aa9f588601c9b34f231768188e4de183d49b85b6d7fb69

    SHA512

    b9938bdd57ff5bec24039078cb659eb1a35d1e3aceff6af9e34f418c928db72c2994348e6a21c288470d3bb3a3b3d1caf799972db0a2be68ed7aa88439be2fd6

  • memory/864-70-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/864-68-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/864-71-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/864-86-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/864-77-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/864-78-0x0000000075D61000-0x0000000075D63000-memory.dmp

    Filesize

    8KB

  • memory/864-79-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/864-67-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/1544-116-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/1544-115-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/1944-114-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1944-110-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1964-59-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1964-57-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1964-74-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1964-62-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1964-56-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB