Overview

overview

10

Static

static

10

Document.doc.scr

windows7-x64

9

Document.doc.scr

windows10-2004-x64

9

Analysis

  • max time kernel
    142s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/04/2024, 03:07

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General

  • Target
    Document.doc.scr
  • Size 194KB
  • Sample240425-dmdp1seb99
  • SHA256 062683257386c9e41a1cd1493f029d817445c37f7c65386d54122fa466419ce1
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
ransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (609) 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:1364
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:4492
    • C:\ProgramData\9566.tmp
      "C:\ProgramData\9566.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2240
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\9566.tmp >> NUL
        3⤵
          PID:948
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:4576
      • C:\Windows\system32\printfilterpipelinesvc.exe
        C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
        1⤵
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:548
        • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
          /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{5BA70C8C-637E-48A2-A8EA-7B0E76C654F0}.xps" 133584880716320000
          2⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of SetWindowsHookEx
          PID:4080
      • 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=1408 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:3992

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              desktop.ini
              • Path C:\$Recycle.Bin\S-1-5-21-3808065738-1666277613-1125846146-1000\desktop.ini
              • Size 129B
              • SHA256 7044422bb6ddf26d458a496244449077dcebe5cc3157a8ead2269f34e22b2c31
              • MD5 SHA1 SHA512
              Submit Download

              9566.tmp
              • Path C:\ProgramData\9566.tmp
              • Size 14KB
              • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              Qs2QSInbk.README.txt
              • Path C:\Qs2QSInbk.README.txt
              • Size 434B
              • SHA256 6fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
              • MD5 SHA1 SHA512
              Submit Download

              DDDDDDDDDDDDDDDD
              • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDD
              • Size 194KB
              • SHA256 fbbfb22e291a460d80bf5b82442448a3c82bc9d15dbb63c654a7ee3bd7fcfb2e
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              {E91C1C1E-6F21-4F16-BA78-7A51F0CC5897}
              • Path C:\Users\Admin\AppData\Local\Temp\{E91C1C1E-6F21-4F16-BA78-7A51F0CC5897}
              • Size 4KB
              • SHA256 fd04e38773f6dc0b5c44156022bf6490b578cc5804420a28b3d031166ba7a1e0
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              Open Notebook.onetoc2
              • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
              • Size 4KB
              • SHA256 4844b9898930bfbbf656068242cd654a9d49bedc0334fe1854342d109cb8f462
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              DDDDDDDDDDD
              • Path F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\DDDDDDDDDDD
              • Size 129B
              • SHA256 8fd4875043d0fbc75fd4164d61ceb0b06aba2eac04f46bcf677aaeaa812c9aeb
              • MD5 SHA1 SHA512
              Submit Download

              memory/1364-1-0x0000000002BC0000-0x0000000002BD0000-memory.dmp
              Download

              memory/1364-2790-0x0000000002BC0000-0x0000000002BD0000-memory.dmp
              Download

              memory/1364-2791-0x0000000002BC0000-0x0000000002BD0000-memory.dmp
              Download

              memory/1364-0-0x0000000002BC0000-0x0000000002BD0000-memory.dmp
              Download

              memory/1364-2-0x0000000002BC0000-0x0000000002BD0000-memory.dmp
              Download

              memory/1364-2789-0x0000000002BC0000-0x0000000002BD0000-memory.dmp
              Download

              memory/2240-2850-0x000000007FDC0000-0x000000007FDC1000-memory.dmp
              Download

              memory/2240-2852-0x000000007FE00000-0x000000007FE01000-memory.dmp
              Download

              memory/2240-2853-0x000000007FE40000-0x000000007FE41000-memory.dmp
              Download

              memory/2240-2851-0x000000007FDE0000-0x000000007FDE1000-memory.dmp
              Download

              memory/2240-2849-0x000000007FE20000-0x000000007FE21000-memory.dmp
              Download

              memory/2240-2848-0x00000000024E0000-0x00000000024F0000-memory.dmp
              Download

              memory/2240-2847-0x00000000024E0000-0x00000000024F0000-memory.dmp
              Download

              memory/4080-2803-0x00007FFE6A690000-0x00007FFE6A6A0000-memory.dmp
              Download

              memory/4080-2845-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp
              Download

              memory/4080-2846-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp
              Download

              memory/4080-2816-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp
              Download

              memory/4080-2815-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp
              Download

              memory/4080-2814-0x00007FFE6A690000-0x00007FFE6A6A0000-memory.dmp
              Download

              memory/4080-2813-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp
              Download

              memory/4080-2811-0x00007FFE6A690000-0x00007FFE6A6A0000-memory.dmp
              Download

              memory/4080-2806-0x00007FFE6A690000-0x00007FFE6A6A0000-memory.dmp
              Download

              memory/4080-2808-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp
              Download

              memory/4080-2854-0x00007FFE68110000-0x00007FFE68120000-memory.dmp
              Download

              memory/4080-2855-0x00007FFE68110000-0x00007FFE68120000-memory.dmp
              Download

              memory/4080-2805-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp
              Download

              memory/4080-2804-0x00007FFE6A690000-0x00007FFE6A6A0000-memory.dmp
              Download

              memory/4080-2877-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp
              Download

              memory/4080-2878-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp
              Download

              memory/4080-2879-0x00007FFEAA610000-0x00007FFEAA805000-memory.dmp
              Download