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Overview

overview

9

Static

static

trabajo escuela.exe

windows7_x64

9

trabajo escuela.exe

windows10_x64

9

Resubmissions

09/04/2024, 21:00

240409-ztcbesed8x 10

13/10/2021, 12:07

211013-paebkaeah7 9

Analysis

  • max time kernel
    327s
  • max time network
    358s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    13/10/2021, 12:07

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General

  • Target

    trabajo escuela.exe

  • Size

    614KB

  • MD5

    535994874b99eea69b30569bc7176440

  • SHA1

    e10245fd72b3ff5f219b18fb292fb3b33ae3a3e5

  • SHA256

    79c0f9223e6861b8bf5f6f3ef860bc517e8fcb544efee34bb5f2cc9867af75a7

  • SHA512

    12bb6e3737f545ecbef371e079d6764d8e35ff8f940258b430f16e07d34e214c030f6ce0518461639178209fe2da62941a1de763fc25490c0e02e8e064da596f

Score
9/10
evasionransomwarespywarestealer

Malware Config

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Executes dropped EXE 2 IoCs
  • Drops startup file 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Drops desktop.ini file(s) 34 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies registry class 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\trabajo escuela.exe
    "C:\Users\Admin\AppData\Local\Temp\trabajo escuela.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2384
    • C:\Users\Admin\AppData\Local\Temp\CRYpt0r V3.0.exe
      "C:\Users\Admin\AppData\Local\Temp\CRYpt0r V3.0.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3384
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Drops startup file
        • Drops desktop.ini file(s)
        • Sets desktop wallpaper using registry
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2444
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2724
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Interacts with shadow copies
            PID:1824
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3736
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2328
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {default} bootstatuspolicy ignoreallfailures
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:3612
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {default} recoveryenabled no
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:3608
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3096
          • C:\Windows\system32\wbadmin.exe
            wbadmin delete catalog -quiet
            5⤵
            • Deletes backup catalog
            PID:1784
        • C:\Windows\system32\NOTEPAD.EXE
          "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\LEER IMPORTANTE.txt
          4⤵
            PID:2276
    • C:\Windows\system32\OpenWith.exe
      C:\Windows\system32\OpenWith.exe -Embedding
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2300
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1988
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2880
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:4040
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:2384
      • C:\Windows\system32\OpenWith.exe
        C:\Windows\system32\OpenWith.exe -Embedding
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:3208

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/2384-116-0x000002411B180000-0x000002411B182000-memory.dmp

        Filesize

        8KB

        Download

      • memory/2384-115-0x000002411B180000-0x000002411B182000-memory.dmp

        Filesize

        8KB

        Download

      • memory/2444-127-0x000000001B502000-0x000000001B503000-memory.dmp

        Filesize

        4KB

        Download

      • memory/3384-120-0x00000000007D0000-0x00000000007D1000-memory.dmp

        Filesize

        4KB

        Download