Overview

overview

10

Static

static

3

Document.doc.scr

windows7-x64

10

Document.doc.scr

windows10-2004-x64

10

Resubmissions

14/08/2024, 20:27

240814-y8tzcasfnc3

30/04/2024, 10:49

240430-mwtx2aad2610

Analysis

  • max time kernel
    147s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/04/2024, 10:49

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    Document.doc.scr
  • Size 57KB
  • Sample240430-mwtx2aad26
  • SHA256 ddbc4908272a1d0f339b58627a6795a7daff257470741474cc9203b9a9a56cd6
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
lockbitransomwarespywarestealer

Malware Config

Signatures

  • Lockbit

    Ransomware family with multiple variants released since late 2019.

    ransomwarelockbit
  • Rule to detect Lockbit 3.0 ransomware Windows payload 1 IoCs
  • Renames multiple (613) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 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) 2 IoCs
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Document.doc.scr
    "C:\Users\Admin\AppData\Local\Temp\Document.doc.scr" /S
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4076
    • C:\Users\Admin\AppData\Local\Temp\11092826.scr
      "C:\Users\Admin\AppData\Local\Temp\11092826.scr" /S
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Modifies Control Panel
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4788
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
        • Drops file in System32 directory
        PID:872
      • C:\ProgramData\B14F.tmp
        "C:\ProgramData\B14F.tmp"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of WriteProcessMemory
        PID:1636
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\B14F.tmp >> NUL
          4⤵
            PID:4464
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:1500
      • C:\Windows\system32\printfilterpipelinesvc.exe
        C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
        1⤵
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:3224
        • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
          /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{CD9DCA14-3163-4D4E-AE4E-AEB92E4044AC}.xps" 133589477719750000
          2⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of SetWindowsHookEx
          PID:896

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            DDDDDDDDDDD
            • Path C:\$Recycle.Bin\S-1-5-21-3906287020-2915474608-1755617787-1000\DDDDDDDDDDD
            • Size 129B
            • SHA256 e364ce0ca468a855c35deaa5a746c9249c3054b8da50bbc0eb5a3b5b70244ef7
            • MD5 SHA1 SHA512
            Submit Download

            AAtvmKv4L.README.txt
            • Path C:\AAtvmKv4L.README.txt
            • Size 434B
            • SHA256 192d1e6078570865531e8a4c9840a483c4a2ac35fe468107284991f6da813191
            • MD5 SHA1 SHA512
            Submit Download

            B14F.tmp
            • Path C:\ProgramData\B14F.tmp
            • Size 14KB
            • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            11092826.scr
            • Path C:\Users\Admin\AppData\Local\Temp\11092826.scr
            • Size 194KB
            • SHA256 41e187191625d749b89a11bc04fc0b2a3b9bd638035d05b39365c47ab36d1898
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            DDDDDDDDDDDD
            • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDD
            • Size 194KB
            • SHA256 b740f65bcc95e20f7c691d69d405372138beee0f7489a1bab3fbcc82277574cd
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            {C5093EAF-9A24-4F83-BAED-556CD1B176F3}
            • Path C:\Users\Admin\AppData\Local\Temp\{C5093EAF-9A24-4F83-BAED-556CD1B176F3}
            • Size 4KB
            • SHA256 6b724e91fc319a210864461dd8a51fdb5e15490888a0fc77f015d5db51600b2d
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            Open Notebook.onetoc2
            • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
            • Size 4KB
            • SHA256 2c3f0391f48880692f05a1b37de6aa5209d22e6122510a8cdd672165fcfe68c1
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            DDDDDDDDDDD
            • Path F:\$RECYCLE.BIN\S-1-5-21-3906287020-2915474608-1755617787-1000\DDDDDDDDDDD
            • Size 129B
            • SHA256 51561d54f6ad74ff22707a91401843af7153d59f82ad9b28ec0e2f6b39fb6813
            • MD5 SHA1 SHA512
            Submit Download

            memory/896-2804-0x00007FFABE170000-0x00007FFABE180000-memory.dmp
            Download

            memory/896-2805-0x00007FFABE170000-0x00007FFABE180000-memory.dmp
            Download

            memory/896-2803-0x00007FFABE170000-0x00007FFABE180000-memory.dmp
            Download

            memory/896-2802-0x00007FFABE170000-0x00007FFABE180000-memory.dmp
            Download

            memory/896-2801-0x00007FFABE170000-0x00007FFABE180000-memory.dmp
            Download

            memory/896-2834-0x00007FFABBFD0000-0x00007FFABBFE0000-memory.dmp
            Download

            memory/896-2835-0x00007FFABBFD0000-0x00007FFABBFE0000-memory.dmp
            Download

            memory/4788-8-0x0000000002F30000-0x0000000002F40000-memory.dmp
            Download

            memory/4788-6-0x0000000002F30000-0x0000000002F40000-memory.dmp
            Download

            memory/4788-7-0x0000000002F30000-0x0000000002F40000-memory.dmp
            Download