Analysis

  • max time kernel
    118s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    15-12-2021 06:21

General

  • Target

    028facff67136de55fe200177a190da625c8e1713b4e7d95bf5fc5412a5afffc.exe

  • Size

    79KB

  • MD5

    eb9e0b14e2235af24eeee881892fc825

  • SHA1

    3fb00aa10ccfaedfd29f8b01ef6ef4434d260eb9

  • SHA256

    028facff67136de55fe200177a190da625c8e1713b4e7d95bf5fc5412a5afffc

  • SHA512

    c341517ba090bf530bd1324758644c8d6d2e488912bae19e0b066d508f3e37845ca8b39e5ee86fe75b22126d5d4bcb4957f58e02360c2606f9c0278382238c0a

Score
10/10

Malware Config

Signatures

  • Babuk Locker

    RaaS first seen in 2021 initially called Vasa Locker.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 13 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\028facff67136de55fe200177a190da625c8e1713b4e7d95bf5fc5412a5afffc.exe
    "C:\Users\Admin\AppData\Local\Temp\028facff67136de55fe200177a190da625c8e1713b4e7d95bf5fc5412a5afffc.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1564
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1288
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:368
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1960
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1712
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:484

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/368-56-0x0000000000000000-mapping.dmp

  • memory/1288-55-0x0000000000000000-mapping.dmp

  • memory/1564-54-0x0000000075B51000-0x0000000075B53000-memory.dmp

    Filesize

    8KB

  • memory/1712-58-0x0000000000000000-mapping.dmp

  • memory/1960-57-0x0000000000000000-mapping.dmp