Overview

overview

10

Static

static

10

Document.doc.scr

windows7-x64

9

Document.doc.scr

windows10-2004-x64

9

Resubmissions

25/04/2024, 05:06

240425-frdxpaga4x10

25/04/2024, 05:02

240425-fn7etsfg9610

Analysis

  • max time kernel
    126s
  • max time network
    157s
  • 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, 05:02

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General

  • Target
    Document.doc.scr
  • Size 194KB
  • Sample240425-fn7etsfg96
  • SHA256 1ecea8b0bc92378bf2bdd1c14ae1628c573569419b91cc34504d2c3f8bb9f8b2
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
ransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (632) 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
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 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:1848
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:1964
    • C:\ProgramData\BDDD.tmp
      "C:\ProgramData\BDDD.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:384
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\BDDD.tmp >> NUL
        3⤵
          PID:4176
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:840
      • 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=3692 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:4348
        • C:\Windows\system32\printfilterpipelinesvc.exe
          C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
          1⤵
          • Drops file in System32 directory
          • Suspicious use of WriteProcessMemory
          PID:3664
          • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
            /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{84815AD8-78BC-4748-8BE2-B72C2AF2975A}.xps" 133584949962080000
            2⤵
            • Checks processor information in registry
            • Enumerates system info in registry
            PID:1120
        • C:\Windows\system32\NOTEPAD.EXE
          "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\te8ZzuVLn.README.txt
          1⤵
          • Opens file in notepad (likely ransom note)
          PID:4616

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              CCCCCCCCCCC
              • Path C:\$Recycle.Bin\S-1-5-21-3808065738-1666277613-1125846146-1000\CCCCCCCCCCC
              • Size 129B
              • SHA256 a653b733e410f4dfd5a6d75d104e7883136429376b1857f5716664ebbc1473f9
              • MD5 SHA1 SHA512
              Submit Download

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

              DDDDDDDDDDDDDDDD
              • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDD
              • Size 194KB
              • SHA256 dcef9d96bcc9f31fc87a121c199cccdecaec9a5ab72f12f3eb5562e33635f2e8
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              te8ZzuVLn.README.txt
              • Path C:\te8ZzuVLn.README.txt
              • Size 434B
              • SHA256 6fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
              • MD5 SHA1 SHA512
              Submit Download

              EEEEEEEEEEE
              • Path F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\EEEEEEEEEEE
              • Size 129B
              • SHA256 942e436690ba7fe38f0f0cded3ef698a730b0e7f77bc7a2835b9ae1e08ecd7d4
              • MD5 SHA1 SHA512
              Submit Download

              memory/384-2827-0x000000007FE40000-0x000000007FE41000-memory.dmp
              Download

              memory/384-2828-0x0000000000610000-0x0000000000620000-memory.dmp
              Download

              memory/384-2829-0x0000000000610000-0x0000000000620000-memory.dmp
              Download

              memory/384-2830-0x000000007FE20000-0x000000007FE21000-memory.dmp
              Download

              memory/384-2831-0x000000007FDC0000-0x000000007FDC1000-memory.dmp
              Download

              memory/384-2860-0x000000007FDE0000-0x000000007FDE1000-memory.dmp
              Download

              memory/384-2861-0x000000007FE00000-0x000000007FE01000-memory.dmp
              Download

              memory/1848-2811-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
              Download

              memory/1848-2810-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
              Download

              memory/1848-0-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
              Download

              memory/1848-1-0x0000000002DB0000-0x0000000002DC0000-memory.dmp
              Download