Overview

overview

8

Static

static

3

d66f05f6d0...d8.exe

windows7-x64

8

d66f05f6d0...d8.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/06/2024, 07:32

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General

  • Target
    d66f05f6d0f53c356fa6f3c3d6dd7a45e008e141885861891d43964488b21dd8.exe
  • Size 407KB
  • Sample240611-jdcn9ayfrd
  • SHA256 d66f05f6d0f53c356fa6f3c3d6dd7a45e008e141885861891d43964488b21dd8
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10
bootkitpersistencespywarestealer

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d66f05f6d0f53c356fa6f3c3d6dd7a45e008e141885861891d43964488b21dd8.exe
    "C:\Users\Admin\AppData\Local\Temp\d66f05f6d0f53c356fa6f3c3d6dd7a45e008e141885861891d43964488b21dd8.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\mcblvdrs.exe "C:\Users\Admin\AppData\Local\Temp\d66f05f6d0f53c356fa6f3c3d6dd7a45e008e141885861891d43964488b21dd8.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1004
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2412
      • C:\Users\Admin\AppData\Local\Temp\mcblvdrs.exe
        C:\Users\Admin\AppData\Local\Temp\\mcblvdrs.exe "C:\Users\Admin\AppData\Local\Temp\d66f05f6d0f53c356fa6f3c3d6dd7a45e008e141885861891d43964488b21dd8.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1776
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\zcgvh\verow.dll",Verify C:\Users\Admin\AppData\Local\Temp\mcblvdrs.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2060

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        mcblvdrs.exe
        • Path C:\Users\Admin\AppData\Local\Temp\mcblvdrs.exe
        • Size 407KB
        • SHA256 bb06a2fea6e2b31a8cb4f4202894009fc275a6b2ba8dab9c818f92a1da05702f
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        verow.dll
        • Path \??\c:\Program Files\zcgvh\verow.dll
        • Size 228KB
        • SHA256 dae5c5c378d496de52cc35447120aaf4aafdd5b7b98a2cea6afa9fecaf3fd1f7
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1440-0-0x0000000000400000-0x0000000000464000-memory.dmp
        Download

        memory/1440-2-0x0000000000400000-0x0000000000464000-memory.dmp
        Download

        memory/1776-6-0x0000000000400000-0x0000000000464000-memory.dmp
        Download

        memory/1776-8-0x0000000000400000-0x0000000000464000-memory.dmp
        Download

        memory/2060-11-0x0000000010000000-0x0000000010080000-memory.dmp
        Download

        memory/2060-12-0x0000000010000000-0x0000000010080000-memory.dmp
        Download

        memory/2060-14-0x0000000010000000-0x0000000010080000-memory.dmp
        Download