Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-10-2022 14:46

General

  • Target

    982771c03b24a060549712a487f9d8f0d850fd35cc8a0578c79f1ba05c5793e8.exe

  • Size

    338KB

  • MD5

    1a6e98a94b85f52007fd959f6b8bc110

  • SHA1

    f3bdccb0d1a136cef5af28d95b3b378fb8e204ed

  • SHA256

    982771c03b24a060549712a487f9d8f0d850fd35cc8a0578c79f1ba05c5793e8

  • SHA512

    1c2301bf20e4c730324aec545b2aab9eb6001ffd1da89ccf211a590eee5a51afc5dc82cd78709c71e7fddd53730dba4bb538478369058dcb58c4325b63c61d26

  • SSDEEP

    6144:i4V7nL2adqmpbSwQYpdE9nOYrGFigjeMpMwpmCezgpHreXFI8:i4V7nL2a9pR109n7rOiupu3zgt8a8

Score
8/10

Malware Config

Signatures

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

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

  • 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.

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

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

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\982771c03b24a060549712a487f9d8f0d850fd35cc8a0578c79f1ba05c5793e8.exe
    "C:\Users\Admin\AppData\Local\Temp\982771c03b24a060549712a487f9d8f0d850fd35cc8a0578c79f1ba05c5793e8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4904
    • C:\Users\Admin\AppData\Local\Temp\982771c03b24a060549712a487f9d8f0d850fd35cc8a0578c79f1ba05c5793e8.exe
      "C:\Users\Admin\AppData\Local\Temp\982771c03b24a060549712a487f9d8f0d850fd35cc8a0578c79f1ba05c5793e8.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4632
      • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1296
        • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
          4⤵
          • Executes dropped EXE
          • Enumerates connected drives
          PID:4376

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    338KB

    MD5

    1a6e98a94b85f52007fd959f6b8bc110

    SHA1

    f3bdccb0d1a136cef5af28d95b3b378fb8e204ed

    SHA256

    982771c03b24a060549712a487f9d8f0d850fd35cc8a0578c79f1ba05c5793e8

    SHA512

    1c2301bf20e4c730324aec545b2aab9eb6001ffd1da89ccf211a590eee5a51afc5dc82cd78709c71e7fddd53730dba4bb538478369058dcb58c4325b63c61d26

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

    Filesize

    338KB

    MD5

    1a6e98a94b85f52007fd959f6b8bc110

    SHA1

    f3bdccb0d1a136cef5af28d95b3b378fb8e204ed

    SHA256

    982771c03b24a060549712a487f9d8f0d850fd35cc8a0578c79f1ba05c5793e8

    SHA512

    1c2301bf20e4c730324aec545b2aab9eb6001ffd1da89ccf211a590eee5a51afc5dc82cd78709c71e7fddd53730dba4bb538478369058dcb58c4325b63c61d26

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

    Filesize

    338KB

    MD5

    1a6e98a94b85f52007fd959f6b8bc110

    SHA1

    f3bdccb0d1a136cef5af28d95b3b378fb8e204ed

    SHA256

    982771c03b24a060549712a487f9d8f0d850fd35cc8a0578c79f1ba05c5793e8

    SHA512

    1c2301bf20e4c730324aec545b2aab9eb6001ffd1da89ccf211a590eee5a51afc5dc82cd78709c71e7fddd53730dba4bb538478369058dcb58c4325b63c61d26

  • memory/1296-141-0x0000000000000000-mapping.dmp

  • memory/1296-151-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4376-150-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4376-146-0x0000000000000000-mapping.dmp

  • memory/4376-152-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4376-153-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4632-140-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4632-139-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4632-137-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4632-136-0x0000000000400000-0x0000000000427000-memory.dmp

    Filesize

    156KB

  • memory/4632-135-0x0000000000000000-mapping.dmp

  • memory/4904-138-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4904-133-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB