Overview

overview

10

Static

static

10

Document.doc.scr

windows7-x64

9

Document.doc.scr

windows10-2004-x64

9

Resubmissions

30/04/2024, 10:29

240430-mjb7fshh7410

26/04/2024, 02:29

240426-cytpyahd2310

26/04/2024, 02:23

240426-cvm3zshc8210

25/04/2024, 03:51

240425-eekn2aeg3910

Analysis

  • max time kernel
    147s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/04/2024, 02:23

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General

  • Target
    Document.doc.scr
  • Size 194KB
  • Sample240426-cvm3zshc82
  • SHA256 062683257386c9e41a1cd1493f029d817445c37f7c65386d54122fa466419ce1
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
ransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (605) 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: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 16 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:556
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:404
    • C:\ProgramData\3B.tmp
      "C:\ProgramData\3B.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\3B.tmp >> NUL
        3⤵
          PID:1880
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:5516
      • C:\Windows\system32\printfilterpipelinesvc.exe
        C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
        1⤵
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:5668
        • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
          /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{B7B64BCE-9523-4063-AF55-AC6BA15FCF4F}.xps" 133585718577160000
          2⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of SetWindowsHookEx
          PID:5744

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            YYYYYYYYYYY
            • Path C:\$Recycle.Bin\S-1-5-21-2288054676-1871194608-3559553667-1000\YYYYYYYYYYY
            • Size 129B
            • SHA256 28c3486a4a5b880f6d76504bc8ccb344a722910916f19186df09988602a241f9
            • MD5 SHA1 SHA512
            Submit Download

            3B.tmp
            • Path C:\ProgramData\3B.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

            {B7B64BCE-9523-4063-AF55-AC6BA15FCF4F}.xps
            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{B7B64BCE-9523-4063-AF55-AC6BA15FCF4F}.xps
            • Size 13.0MB
            • SHA256 9f49f391ad707e548be4040426eabe37e580109cf4ceb22da9fccc69a9f58556
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            DDDDDDDDDDDDDDDD
            • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDD
            • Size 194KB
            • SHA256 3a6c9070e39550d9c26527a602ba5a06ae55ae58281623744305a344c5c0bca1
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            {745301F4-E519-496A-9650-63D037FF5EA9}
            • Path C:\Users\Admin\AppData\Local\Temp\{745301F4-E519-496A-9650-63D037FF5EA9}
            • Size 4KB
            • SHA256 c3a3cd31e25f365b859a55a2b85e9594eb2021f73974b121cb145616ada88139
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            ExcludeDictionaryEN0409.lex
            • Path C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex
            • Size 2B
            • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
            • MD5 SHA1 SHA512
            Submit Download

            Open Notebook.onetoc2
            • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
            • Size 4KB
            • SHA256 990d4a18098a4d38152c916ef213a60a163f7d99682fa48382471353407d662e
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            EEEEEEEEEEE
            • Path F:\$RECYCLE.BIN\S-1-5-21-2288054676-1871194608-3559553667-1000\EEEEEEEEEEE
            • Size 129B
            • SHA256 e610261c9e331e40ff0dee60a0ee8d8a8a1d06c0029e50c47f4ac13a3f04acde
            • MD5 SHA1 SHA512
            Submit Download

            memory/556-0-0x0000000002B10000-0x0000000002B20000-memory.dmp
            Download

            memory/556-1-0x0000000002B10000-0x0000000002B20000-memory.dmp
            Download

            memory/556-2-0x0000000002B10000-0x0000000002B20000-memory.dmp
            Download

            memory/5744-2831-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2833-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2829-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2828-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2792-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2830-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2796-0x00007FFC28970000-0x00007FFC28980000-memory.dmp
            Download

            memory/5744-2832-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2834-0x00007FFC26010000-0x00007FFC26020000-memory.dmp
            Download

            memory/5744-2835-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2836-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2837-0x00007FFC26010000-0x00007FFC26020000-memory.dmp
            Download

            memory/5744-2838-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2793-0x00007FFC28970000-0x00007FFC28980000-memory.dmp
            Download

            memory/5744-2839-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2840-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2841-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2842-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2843-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2797-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2868-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2869-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2870-0x00007FFC688F0000-0x00007FFC68AE5000-memory.dmp
            Download

            memory/5744-2827-0x00007FFC28970000-0x00007FFC28980000-memory.dmp
            Download

            memory/5744-2826-0x00007FFC28970000-0x00007FFC28980000-memory.dmp
            Download

            memory/5744-2789-0x00007FFC28970000-0x00007FFC28980000-memory.dmp
            Download