Overview

overview

8

Static

static

3

14cfaf877c...1e.exe

windows7-x64

8

14cfaf877c...1e.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/05/2024, 07:19

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General

  • Target
    14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e.exe
  • Size 404KB
  • Sample240507-h511gshd92
  • SHA256 14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e
  • 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 2 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\14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e.exe
    "C:\Users\Admin\AppData\Local\Temp\14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\dwrboxr.exe "C:\Users\Admin\AppData\Local\Temp\14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3920
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2576
      • C:\Users\Admin\AppData\Local\Temp\dwrboxr.exe
        C:\Users\Admin\AppData\Local\Temp\\dwrboxr.exe "C:\Users\Admin\AppData\Local\Temp\14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4512
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\rlqew\czfsd.dll",Verify C:\Users\Admin\AppData\Local\Temp\dwrboxr.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:628
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3600 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3208

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          czfsd.dll
          • Path C:\Program Files\rlqew\czfsd.dll
          • Size 228KB
          • SHA256 dce52299b2465a9af59a080dd9e0f4a80e3c380c90a656721ab9bfe4088d09c0
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          dwrboxr.exe
          • Path C:\Users\Admin\AppData\Local\Temp\dwrboxr.exe
          • Size 405KB
          • SHA256 e238a0f04476c37f52057bad6e4f2fa4f05e0e39d685db6e3d0f25eda13be7ff
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          memory/628-10-0x0000000010000000-0x0000000010080000-memory.dmp
          Download

          memory/628-11-0x0000000010000000-0x0000000010080000-memory.dmp
          Download

          memory/628-13-0x0000000010000000-0x0000000010080000-memory.dmp
          Download

          memory/3488-0-0x0000000000400000-0x0000000000464000-memory.dmp
          Download

          memory/3488-2-0x0000000000400000-0x0000000000464000-memory.dmp
          Download

          memory/4512-7-0x0000000000400000-0x0000000000464000-memory.dmp
          Download