Overview

overview

10

Static

static

6

1d67abe1ec...93.exe

windows7_x64

10

1d67abe1ec...93.exe

windows10_x64

10

Analysis

  • max time kernel
    135s
  • max time network
    79s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    13/07/2020, 13:56

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General

  • Target
    1d67abe1ec08e6215e08d6bb595ade3d1d33d0e886edf887b29f4d8e1d46e593.exe
  • Size 4.6MB
  • Sample200713-5x5vderhsx
  • SHA256 1d67abe1ec08e6215e08d6bb595ade3d1d33d0e886edf887b29f4d8e1d46e593
  • MD5 SHA1 SHA512
Score
10/10
ransomwarespywarepersistence

Malware Config

Extracted

Path

  • C:\Boot\Fonts\HOW TO RESTORE YOUR FILES.TXT

Ransom Note
  • Hello! All your files are encrypted, write to me if you want to return your files - I can do it very quickly! Contact me by email: [email protected] or [email protected] The subject line must contain an encryption extension or the name of your company! Do not rename encrypted files, you may lose them forever. You may be a victim of fraud. Free decryption as a guarantee. Send us up to 3 files for free decryption. The total file size should be no more than 1 MB! (not in the archive), and the files should not contain valuable information. (databases, backups, large Excel spreadsheets, etc.) !!! Do not turn off or restart the NAS equipment. This will lead to data loss !!!

Signatures

  • Suspicious use of WriteProcessMemory 14 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Drops startup file 2 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Drops file in Program Files directory 25653 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1d67abe1ec08e6215e08d6bb595ade3d1d33d0e886edf887b29f4d8e1d46e593.exe
    "C:\Users\Admin\AppData\Local\Temp\1d67abe1ec08e6215e08d6bb595ade3d1d33d0e886edf887b29f4d8e1d46e593.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Drops startup file
    • Drops file in Program Files directory
    PID:3944
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\khrmvs.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3160
      • C:\Windows\system32\sc.exe
        SC QUERY
        3⤵
          PID:432
        • C:\Windows\system32\findstr.exe
          FINDSTR SERVICE_NAME
          3⤵
            PID:588
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ypmwxggvtyc.bat
          2⤵
            PID:656
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\yclsgrq.bat
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3968
            • C:\Windows\system32\vssadmin.exe
              vssadmin delete shadows /all /quiet
              3⤵
              • Interacts with shadow copies
              PID:1604
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\qmhsetryxqvmpheqsbxp.bat
            2⤵
              PID:4088
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            • Modifies service
            PID:2520

          Network

                MITRE ATT&CK Enterprise v6

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                Downloads