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Analysis

  • max time kernel
    116s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2022, 19:53

General

  • Target

    3c0a9947e72bb6c3965b7f5e556331667d95698e078faf6d07ac7994fdc7d047.exe

  • Size

    5.0MB

  • MD5

    428effc51f7b673ed032ffebb0cae50b

  • SHA1

    ac1a0f69f497547daf854a332a1f288ca295179a

  • SHA256

    3c0a9947e72bb6c3965b7f5e556331667d95698e078faf6d07ac7994fdc7d047

  • SHA512

    22138a15989a1d3c5e68dce31f85c79a36e8b631fb85609c424c359a9756914fb34da0f9db89c999b811957ecd17041b917720178565baea3f6f7af5ad9fb682

  • SSDEEP

    98304:HKbs+KniHMDhTG8WKIgt8QJlx7K0DP5TgMNNcbrcW7YsAKo16gvJXUaS8zA:HKVSiOTG8pIgN7KwxRArc4YsAKDEdev

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.

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

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c0a9947e72bb6c3965b7f5e556331667d95698e078faf6d07ac7994fdc7d047.exe
    "C:\Users\Admin\AppData\Local\Temp\3c0a9947e72bb6c3965b7f5e556331667d95698e078faf6d07ac7994fdc7d047.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\msisetup.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\msisetup.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4944
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\msisetup.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\msisetup.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4936
        • C:\Windows\splwow64.exe
          C:\Windows\splwow64.exe 12288
          4⤵
            PID:3104
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:3768

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\msisetup.exe

        Filesize

        15.1MB

        MD5

        1e446eb62df775a6bced88d8027f4f35

        SHA1

        0055f2702e8806193717ecd73a665bead7d32a2b

        SHA256

        6de7cc1f1e08bf52c5064e49fb85c2e74ff83d470d0a970b38c128cb01e1778d

        SHA512

        31bd01b5fa9d903f1ce122826a8fb1927e67a380029f7b62c348812ce60744c006b08c2e4ebd024bd96a4454052e8d7a29f63a1529b215ded8d4a6eba9334efc

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\msisetup.exe

        Filesize

        15.1MB

        MD5

        1e446eb62df775a6bced88d8027f4f35

        SHA1

        0055f2702e8806193717ecd73a665bead7d32a2b

        SHA256

        6de7cc1f1e08bf52c5064e49fb85c2e74ff83d470d0a970b38c128cb01e1778d

        SHA512

        31bd01b5fa9d903f1ce122826a8fb1927e67a380029f7b62c348812ce60744c006b08c2e4ebd024bd96a4454052e8d7a29f63a1529b215ded8d4a6eba9334efc

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\msisetup.exe

        Filesize

        15.1MB

        MD5

        1e446eb62df775a6bced88d8027f4f35

        SHA1

        0055f2702e8806193717ecd73a665bead7d32a2b

        SHA256

        6de7cc1f1e08bf52c5064e49fb85c2e74ff83d470d0a970b38c128cb01e1778d

        SHA512

        31bd01b5fa9d903f1ce122826a8fb1927e67a380029f7b62c348812ce60744c006b08c2e4ebd024bd96a4454052e8d7a29f63a1529b215ded8d4a6eba9334efc

      • memory/4936-138-0x0000000000400000-0x0000000000CAF000-memory.dmp

        Filesize

        8.7MB

      • memory/4936-136-0x0000000000400000-0x0000000000CAF000-memory.dmp

        Filesize

        8.7MB

      • memory/4936-139-0x0000000000400000-0x0000000000CAF000-memory.dmp

        Filesize

        8.7MB

      • memory/4936-140-0x0000000000400000-0x0000000000CAF000-memory.dmp

        Filesize

        8.7MB

      • memory/4936-141-0x0000000000400000-0x0000000000CAF000-memory.dmp

        Filesize

        8.7MB

      • memory/4936-143-0x0000000000400000-0x0000000000CAF000-memory.dmp

        Filesize

        8.7MB

      • memory/4936-144-0x0000000000400000-0x0000000000CAF000-memory.dmp

        Filesize

        8.7MB