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Analysis

  • max time kernel
    150s
  • max time network
    113s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    04/10/2022, 04:00

General

  • Target

    5a10e759b01c6fe03f983ada38cdf36e465ec2911b878e55f691c2de982a8612.exe

  • Size

    124KB

  • MD5

    5ecd428cfde6679586a7d2e06e433591

  • SHA1

    ed4b5dc80cf7cfdb9565c52887342e1532212060

  • SHA256

    5a10e759b01c6fe03f983ada38cdf36e465ec2911b878e55f691c2de982a8612

  • SHA512

    a06c6dabc1cc601c5374b1fcdeb28866d4891083d7a7564b5bfcaea3a9c7c2bccf0f9c94571325fcc7c3606c92aedde2082ef985e0b0c8072ace32545f7d135a

  • SSDEEP

    3072:nE6S0THjEwAT7x2F8d+kcnpPwaqArUoeHqHpOcdElGIrGIwv:EOPE8FS+kcaarr1

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\5a10e759b01c6fe03f983ada38cdf36e465ec2911b878e55f691c2de982a8612.exe
    "C:\Users\Admin\AppData\Local\Temp\5a10e759b01c6fe03f983ada38cdf36e465ec2911b878e55f691c2de982a8612.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Users\Admin\AppData\Local\Temp\5a10e759b01c6fe03f983ada38cdf36e465ec2911b878e55f691c2de982a8612.exe
      74
      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:1864
      • C:\Users\Admin\rmsec.exe
        "C:\Users\Admin\rmsec.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1968
        • C:\Users\Admin\rmsec.exe
          74
          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:768

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\rmsec.exe

    Filesize

    124KB

    MD5

    5ecd428cfde6679586a7d2e06e433591

    SHA1

    ed4b5dc80cf7cfdb9565c52887342e1532212060

    SHA256

    5a10e759b01c6fe03f983ada38cdf36e465ec2911b878e55f691c2de982a8612

    SHA512

    a06c6dabc1cc601c5374b1fcdeb28866d4891083d7a7564b5bfcaea3a9c7c2bccf0f9c94571325fcc7c3606c92aedde2082ef985e0b0c8072ace32545f7d135a

  • C:\Users\Admin\rmsec.exe

    Filesize

    124KB

    MD5

    5ecd428cfde6679586a7d2e06e433591

    SHA1

    ed4b5dc80cf7cfdb9565c52887342e1532212060

    SHA256

    5a10e759b01c6fe03f983ada38cdf36e465ec2911b878e55f691c2de982a8612

    SHA512

    a06c6dabc1cc601c5374b1fcdeb28866d4891083d7a7564b5bfcaea3a9c7c2bccf0f9c94571325fcc7c3606c92aedde2082ef985e0b0c8072ace32545f7d135a

  • C:\Users\Admin\rmsec.exe

    Filesize

    124KB

    MD5

    5ecd428cfde6679586a7d2e06e433591

    SHA1

    ed4b5dc80cf7cfdb9565c52887342e1532212060

    SHA256

    5a10e759b01c6fe03f983ada38cdf36e465ec2911b878e55f691c2de982a8612

    SHA512

    a06c6dabc1cc601c5374b1fcdeb28866d4891083d7a7564b5bfcaea3a9c7c2bccf0f9c94571325fcc7c3606c92aedde2082ef985e0b0c8072ace32545f7d135a

  • \Users\Admin\rmsec.exe

    Filesize

    124KB

    MD5

    5ecd428cfde6679586a7d2e06e433591

    SHA1

    ed4b5dc80cf7cfdb9565c52887342e1532212060

    SHA256

    5a10e759b01c6fe03f983ada38cdf36e465ec2911b878e55f691c2de982a8612

    SHA512

    a06c6dabc1cc601c5374b1fcdeb28866d4891083d7a7564b5bfcaea3a9c7c2bccf0f9c94571325fcc7c3606c92aedde2082ef985e0b0c8072ace32545f7d135a

  • \Users\Admin\rmsec.exe

    Filesize

    124KB

    MD5

    5ecd428cfde6679586a7d2e06e433591

    SHA1

    ed4b5dc80cf7cfdb9565c52887342e1532212060

    SHA256

    5a10e759b01c6fe03f983ada38cdf36e465ec2911b878e55f691c2de982a8612

    SHA512

    a06c6dabc1cc601c5374b1fcdeb28866d4891083d7a7564b5bfcaea3a9c7c2bccf0f9c94571325fcc7c3606c92aedde2082ef985e0b0c8072ace32545f7d135a

  • memory/768-78-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/768-81-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1864-63-0x0000000075601000-0x0000000075603000-memory.dmp

    Filesize

    8KB

  • memory/1864-56-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1864-62-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1864-59-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1864-80-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB