Overview

overview

10

Static

static

10

Document.doc.scr

windows7-x64

9

Document.doc.scr

windows10-2004-x64

9

Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/04/2024, 19:38

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    Document.doc.scr
  • Size 194KB
  • Sample240423-ycqxtabc45
  • SHA256 86e17aa882c690ede284f3e445439dfe589d8f36e31cbc09d102305499d5c498
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
ransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (563) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 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 behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Document.doc.scr
    "C:\Users\Admin\AppData\Local\Temp\Document.doc.scr" /S
    1⤵
    • 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:2468
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:7140
    • C:\ProgramData\F195.tmp
      "C:\ProgramData\F195.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:5476
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\F195.tmp >> NUL
        3⤵
          PID:5168
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:5252
      • C:\Windows\system32\printfilterpipelinesvc.exe
        C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
        1⤵
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:3060
        • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
          /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{5CBAF1BB-14D2-4580-9BB7-1D99D7894D35}.xps" 133583747466040000
          2⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of SetWindowsHookEx
          PID:3192

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            AAAAAAAAAAA
            • Path C:\$Recycle.Bin\S-1-5-21-2288054676-1871194608-3559553667-1000\AAAAAAAAAAA
            • Size 129B
            • SHA256 8827c2c513a80a11edc9e9903ff5e01af0483add59cda6ebc95fdac2b7a2d1f8
            • MD5 SHA1 SHA512
            Submit Download

            F195.tmp
            • Path C:\ProgramData\F195.tmp
            • Size 14KB
            • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            DDDDDDDDDDDDDDDD
            • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDD
            • Size 194KB
            • SHA256 a01cdd4bce9cdc76e8b9c037244ba5e9a38472f0420cd44f27cb94f2b75c47f9
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            {9CD6C26E-144A-4CB0-9033-BA86FE2E35E9}
            • Path C:\Users\Admin\AppData\Local\Temp\{9CD6C26E-144A-4CB0-9033-BA86FE2E35E9}
            • Size 4KB
            • SHA256 227f48cbadc227e0ce623c993f11f8d9efd2b5db0069c67372a3a685f1404689
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            Open Notebook.onetoc2
            • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
            • Size 4KB
            • SHA256 dd4e6d1f840740f114117beecb694fde95a88d5b28a9a6539981564415a8ccf3
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            kZd6jLIwz.README.txt
            • Path C:\kZd6jLIwz.README.txt
            • Size 449B
            • SHA256 c25759e6083dd4bf592a6da2063c45def5adc9a6ef2ed15820128a0d838f70fe
            • MD5 SHA1 SHA512
            Submit Download

            DDDDDDDDDDD
            • Path F:\$RECYCLE.BIN\S-1-5-21-2288054676-1871194608-3559553667-1000\DDDDDDDDDDD
            • Size 129B
            • SHA256 3f220dda81153a9c8989fd19caba5b8d6a786a1c5e53d766e827db1d14d5e3ca
            • MD5 SHA1 SHA512
            Submit Download

            memory/2468-1-0x0000000000DB0000-0x0000000000DC0000-memory.dmp
            Download

            memory/2468-2-0x0000000000DB0000-0x0000000000DC0000-memory.dmp
            Download

            memory/2468-0-0x0000000000DB0000-0x0000000000DC0000-memory.dmp
            Download

            memory/3192-2752-0x00007FFBB2850000-0x00007FFBB2860000-memory.dmp
            Download

            memory/3192-2796-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2786-0x00007FFBB2850000-0x00007FFBB2860000-memory.dmp
            Download

            memory/3192-2787-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2784-0x00007FFBB2850000-0x00007FFBB2860000-memory.dmp
            Download

            memory/3192-2782-0x00007FFBB2850000-0x00007FFBB2860000-memory.dmp
            Download

            memory/3192-2783-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2788-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2789-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2790-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2792-0x00007FFBB0460000-0x00007FFBB0470000-memory.dmp
            Download

            memory/3192-2793-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2794-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2785-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2797-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2795-0x00007FFBB0460000-0x00007FFBB0470000-memory.dmp
            Download

            memory/3192-2791-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2798-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2799-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2800-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2801-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2781-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2751-0x00007FFBB2850000-0x00007FFBB2860000-memory.dmp
            Download

            memory/3192-2826-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download

            memory/3192-2827-0x00007FFBF27D0000-0x00007FFBF29C5000-memory.dmp
            Download