Overview

overview

10

Static

static

10

676720712.scr

windows7-x64

9

676720712.scr

windows10-2004-x64

9

Resubmissions

15/05/2024, 07:41

240515-jjdhqsff6510

15/05/2024, 06:59

240515-hr6ntaec3710

15/05/2024, 05:57

240515-gnsr4sca7z10

Analysis

  • max time kernel
    545s
  • max time network
    460s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/05/2024, 05:57

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General

  • Target
    676720712.scr
  • Size 194KB
  • Sample240515-gnsr4sca7z
  • SHA256 41e187191625d749b89a11bc04fc0b2a3b9bd638035d05b39365c47ab36d1898
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
ransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (631) 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\676720712.scr
    "C:\Users\Admin\AppData\Local\Temp\676720712.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:1608
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:3328
    • C:\ProgramData\72A1.tmp
      "C:\ProgramData\72A1.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2552
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\72A1.tmp >> NUL
        3⤵
          PID:4936
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:2664
      • C:\Windows\system32\printfilterpipelinesvc.exe
        C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
        1⤵
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:2844
        • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
          /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{6C08D309-D971-44D6-A97D-B729164B730D}.xps" 133602262768420000
          2⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of SetWindowsHookEx
          PID:4364

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            DDDDDDDDDDD
            • Path C:\$Recycle.Bin\S-1-5-21-1162180587-977231257-2194346871-1000\DDDDDDDDDDD
            • Size 129B
            • SHA256 1b12771fe03301149c11db3b562b716fd756fdbdf02570f60984d194df31e9b6
            • MD5 SHA1 SHA512
            Submit Download

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

            72A1.tmp
            • Path C:\ProgramData\72A1.tmp
            • Size 14KB
            • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            DDDDDDDDDDDDD
            • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDD
            • Size 194KB
            • SHA256 8dc449eaee471549a12afc50f2bb886eff179120cc8d106825ace891bc7e2939
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            {3F9DEF68-2C1B-49A2-AB94-C5C9DEB63352}
            • Path C:\Users\Admin\AppData\Local\Temp\{3F9DEF68-2C1B-49A2-AB94-C5C9DEB63352}
            • Size 4KB
            • SHA256 183c0c4416de5f845bca8c00a329207e180372e4f8d4d7aeaf3830d9949b4935
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            DDDDDDDDDDD
            • Path F:\$RECYCLE.BIN\S-1-5-21-1162180587-977231257-2194346871-1000\DDDDDDDDDDD
            • Size 129B
            • SHA256 10217a9abd3de8e1898c28ba9bf53ecefe99b573da66cac553695cf4cd8f200a
            • MD5 SHA1 SHA512
            Submit Download

            memory/1608-1-0x0000000002610000-0x0000000002620000-memory.dmp
            Download

            memory/1608-2-0x0000000002610000-0x0000000002620000-memory.dmp
            Download

            memory/1608-0-0x0000000002610000-0x0000000002620000-memory.dmp
            Download

            memory/4364-2786-0x00007FFDAFB70000-0x00007FFDAFB80000-memory.dmp
            Download

            memory/4364-2788-0x00007FFDAFB70000-0x00007FFDAFB80000-memory.dmp
            Download

            memory/4364-2789-0x00007FFDAFB70000-0x00007FFDAFB80000-memory.dmp
            Download

            memory/4364-2790-0x00007FFDAFB70000-0x00007FFDAFB80000-memory.dmp
            Download

            memory/4364-2787-0x00007FFDAFB70000-0x00007FFDAFB80000-memory.dmp
            Download

            memory/4364-2819-0x00007FFDAD210000-0x00007FFDAD220000-memory.dmp
            Download

            memory/4364-2820-0x00007FFDAD210000-0x00007FFDAD220000-memory.dmp
            Download