Overview

overview

10

Static

static

161925cd53...77.exe

windows7_x64

10

161925cd53...77.exe

windows10-2004_x64

8

Analysis

  • max time kernel
    42s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    20/02/2022, 09:56

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General

  • Target
    161925cd5323dd58b3dee09c2f89c97c436cfa81c6b740d77d5fce7de0b55777.exe
  • Size 202KB
  • Sample220220-lyck4accfq
  • SHA256 161925cd5323dd58b3dee09c2f89c97c436cfa81c6b740d77d5fce7de0b55777
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

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

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
    1⤵
      PID:2380
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:2340
      • C:\Windows\system32\DllHost.exe
        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
        1⤵
          PID:3268
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
          1⤵
            PID:2872
          • C:\Windows\system32\taskhostw.exe
            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
            1⤵
              PID:2476
            • C:\Users\Admin\AppData\Local\Temp\161925cd5323dd58b3dee09c2f89c97c436cfa81c6b740d77d5fce7de0b55777.exe
              "C:\Users\Admin\AppData\Local\Temp\161925cd5323dd58b3dee09c2f89c97c436cfa81c6b740d77d5fce7de0b55777.exe"
              1⤵
              • Checks computer location settings
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4644
              • C:\Users\Admin\AppData\Local\Temp\FmtAEMd.exe
                "C:\Users\Admin\AppData\Local\Temp\FmtAEMd.exe" 8 LAN
                2⤵
                • Executes dropped EXE
                PID:4584

            Network

                  MITRE ATT&CK Enterprise v6

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                  Downloads

                  memory/2340-132-0x00007FF73DA50000-0x00007FF73DBC5000-memory.dmp
                  Download

                  memory/2380-133-0x00007FF73DA50000-0x00007FF73DBC5000-memory.dmp
                  Download

                  memory/2476-134-0x00007FF73DA50000-0x00007FF73DBC5000-memory.dmp
                  Download