Analysis

  • max time kernel
    152s
  • max time network
    77s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-11-2022 00:23

General

  • Target

    8a8aae2d47883e1e95716904e5a163e570350dd43274e19bf2907d4ad866feda.exe

  • Size

    108KB

  • MD5

    089b78a045a4e6a8e1db1723c328d211

  • SHA1

    4a65c8c43a12e56c8da12ea58910770550172f07

  • SHA256

    8a8aae2d47883e1e95716904e5a163e570350dd43274e19bf2907d4ad866feda

  • SHA512

    2b7c4a77cb817c5ae58a0eafe5440602b3d0626ecfc54a9e5df7c37f53e3f0cc77f67acdd172737a26e0c694febe46f45246f41d5bad3f34e874adaaf455e5dd

  • SSDEEP

    3072:4XFXJMWWhOSHwHP95ti8mOxjAVC3HknCTiL:gZSwv5iZ0UVC3HnW

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 29 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8a8aae2d47883e1e95716904e5a163e570350dd43274e19bf2907d4ad866feda.exe
    "C:\Users\Admin\AppData\Local\Temp\8a8aae2d47883e1e95716904e5a163e570350dd43274e19bf2907d4ad866feda.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:112
    • C:\Users\Admin\AppData\Local\Temp\8a8aae2d47883e1e95716904e5a163e570350dd43274e19bf2907d4ad866feda.exe
      71
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Loads dropped DLL
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1116
      • C:\Users\Admin\wuoaput.exe
        "C:\Users\Admin\wuoaput.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1288
        • C:\Users\Admin\wuoaput.exe
          71
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Maps connected drives based on registry
          • Drops autorun.inf file
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\wuoaput.exe

    Filesize

    108KB

    MD5

    089b78a045a4e6a8e1db1723c328d211

    SHA1

    4a65c8c43a12e56c8da12ea58910770550172f07

    SHA256

    8a8aae2d47883e1e95716904e5a163e570350dd43274e19bf2907d4ad866feda

    SHA512

    2b7c4a77cb817c5ae58a0eafe5440602b3d0626ecfc54a9e5df7c37f53e3f0cc77f67acdd172737a26e0c694febe46f45246f41d5bad3f34e874adaaf455e5dd

  • C:\Users\Admin\wuoaput.exe

    Filesize

    108KB

    MD5

    089b78a045a4e6a8e1db1723c328d211

    SHA1

    4a65c8c43a12e56c8da12ea58910770550172f07

    SHA256

    8a8aae2d47883e1e95716904e5a163e570350dd43274e19bf2907d4ad866feda

    SHA512

    2b7c4a77cb817c5ae58a0eafe5440602b3d0626ecfc54a9e5df7c37f53e3f0cc77f67acdd172737a26e0c694febe46f45246f41d5bad3f34e874adaaf455e5dd

  • C:\Users\Admin\wuoaput.exe

    Filesize

    108KB

    MD5

    089b78a045a4e6a8e1db1723c328d211

    SHA1

    4a65c8c43a12e56c8da12ea58910770550172f07

    SHA256

    8a8aae2d47883e1e95716904e5a163e570350dd43274e19bf2907d4ad866feda

    SHA512

    2b7c4a77cb817c5ae58a0eafe5440602b3d0626ecfc54a9e5df7c37f53e3f0cc77f67acdd172737a26e0c694febe46f45246f41d5bad3f34e874adaaf455e5dd

  • \Users\Admin\wuoaput.exe

    Filesize

    108KB

    MD5

    089b78a045a4e6a8e1db1723c328d211

    SHA1

    4a65c8c43a12e56c8da12ea58910770550172f07

    SHA256

    8a8aae2d47883e1e95716904e5a163e570350dd43274e19bf2907d4ad866feda

    SHA512

    2b7c4a77cb817c5ae58a0eafe5440602b3d0626ecfc54a9e5df7c37f53e3f0cc77f67acdd172737a26e0c694febe46f45246f41d5bad3f34e874adaaf455e5dd

  • \Users\Admin\wuoaput.exe

    Filesize

    108KB

    MD5

    089b78a045a4e6a8e1db1723c328d211

    SHA1

    4a65c8c43a12e56c8da12ea58910770550172f07

    SHA256

    8a8aae2d47883e1e95716904e5a163e570350dd43274e19bf2907d4ad866feda

    SHA512

    2b7c4a77cb817c5ae58a0eafe5440602b3d0626ecfc54a9e5df7c37f53e3f0cc77f67acdd172737a26e0c694febe46f45246f41d5bad3f34e874adaaf455e5dd

  • memory/984-81-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/984-78-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/984-72-0x00000000004010EC-mapping.dmp

  • memory/1116-62-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1116-63-0x0000000074C11000-0x0000000074C13000-memory.dmp

    Filesize

    8KB

  • memory/1116-56-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1116-59-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1116-80-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1116-57-0x00000000004010EC-mapping.dmp

  • memory/1288-66-0x0000000000000000-mapping.dmp