Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 00:35

General

  • Target

    4cf2ab9038e17e5e0544c55e47b9bd488d8fa032d47c77594a278035fe75fca8.exe

  • Size

    86KB

  • MD5

    3f25a9df421a1e1b36b168aab21edf50

  • SHA1

    5779cd669174db5dd0e171325c4d9877f7a5eb74

  • SHA256

    4cf2ab9038e17e5e0544c55e47b9bd488d8fa032d47c77594a278035fe75fca8

  • SHA512

    decb159afdd7d0a99a1d66c08575044023c75ed3f229fec56a546c1b9e493d26c046921b2aff29da781c2d6f0df9acca81bcafd04915ad9c2fe290df07e0cff7

  • SSDEEP

    1536:iA/zYY2EoHzHoZANS9FwW6LygnzFL3RRpEqJ4fSaOWyzMmAzz9TyHPib:OYdOzHo6NYQe25LVEPflty/whyvib

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\4cf2ab9038e17e5e0544c55e47b9bd488d8fa032d47c77594a278035fe75fca8.exe
    "C:\Users\Admin\AppData\Local\Temp\4cf2ab9038e17e5e0544c55e47b9bd488d8fa032d47c77594a278035fe75fca8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\4cf2ab9038e17e5e0544c55e47b9bd488d8fa032d47c77594a278035fe75fca8.exe
      75
      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:1224
      • C:\Users\Admin\xiozob.exe
        "C:\Users\Admin\xiozob.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1576
        • C:\Users\Admin\xiozob.exe
          75
          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:1512

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\xiozob.exe

    Filesize

    86KB

    MD5

    3f25a9df421a1e1b36b168aab21edf50

    SHA1

    5779cd669174db5dd0e171325c4d9877f7a5eb74

    SHA256

    4cf2ab9038e17e5e0544c55e47b9bd488d8fa032d47c77594a278035fe75fca8

    SHA512

    decb159afdd7d0a99a1d66c08575044023c75ed3f229fec56a546c1b9e493d26c046921b2aff29da781c2d6f0df9acca81bcafd04915ad9c2fe290df07e0cff7

  • C:\Users\Admin\xiozob.exe

    Filesize

    86KB

    MD5

    3f25a9df421a1e1b36b168aab21edf50

    SHA1

    5779cd669174db5dd0e171325c4d9877f7a5eb74

    SHA256

    4cf2ab9038e17e5e0544c55e47b9bd488d8fa032d47c77594a278035fe75fca8

    SHA512

    decb159afdd7d0a99a1d66c08575044023c75ed3f229fec56a546c1b9e493d26c046921b2aff29da781c2d6f0df9acca81bcafd04915ad9c2fe290df07e0cff7

  • C:\Users\Admin\xiozob.exe

    Filesize

    86KB

    MD5

    3f25a9df421a1e1b36b168aab21edf50

    SHA1

    5779cd669174db5dd0e171325c4d9877f7a5eb74

    SHA256

    4cf2ab9038e17e5e0544c55e47b9bd488d8fa032d47c77594a278035fe75fca8

    SHA512

    decb159afdd7d0a99a1d66c08575044023c75ed3f229fec56a546c1b9e493d26c046921b2aff29da781c2d6f0df9acca81bcafd04915ad9c2fe290df07e0cff7

  • \Users\Admin\xiozob.exe

    Filesize

    86KB

    MD5

    3f25a9df421a1e1b36b168aab21edf50

    SHA1

    5779cd669174db5dd0e171325c4d9877f7a5eb74

    SHA256

    4cf2ab9038e17e5e0544c55e47b9bd488d8fa032d47c77594a278035fe75fca8

    SHA512

    decb159afdd7d0a99a1d66c08575044023c75ed3f229fec56a546c1b9e493d26c046921b2aff29da781c2d6f0df9acca81bcafd04915ad9c2fe290df07e0cff7

  • \Users\Admin\xiozob.exe

    Filesize

    86KB

    MD5

    3f25a9df421a1e1b36b168aab21edf50

    SHA1

    5779cd669174db5dd0e171325c4d9877f7a5eb74

    SHA256

    4cf2ab9038e17e5e0544c55e47b9bd488d8fa032d47c77594a278035fe75fca8

    SHA512

    decb159afdd7d0a99a1d66c08575044023c75ed3f229fec56a546c1b9e493d26c046921b2aff29da781c2d6f0df9acca81bcafd04915ad9c2fe290df07e0cff7

  • memory/1224-62-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1224-63-0x0000000076041000-0x0000000076043000-memory.dmp

    Filesize

    8KB

  • memory/1224-56-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1224-59-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1224-57-0x00000000004010E0-mapping.dmp

  • memory/1224-80-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1512-72-0x00000000004010E0-mapping.dmp

  • memory/1512-78-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1512-81-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1576-66-0x0000000000000000-mapping.dmp