Overview

overview

10

Static

static

10

f2198deecd...e4.exe

windows7-x64

9

f2198deecd...e4.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/04/2024, 01:41

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General

  • Target
    f2198deecddd5ae56620b594b6b20bf8a20f9c983d4c60144bc6007a53087ce4.exe
  • Size 194KB
  • Sample240427-b4actagd84
  • SHA256 f2198deecddd5ae56620b594b6b20bf8a20f9c983d4c60144bc6007a53087ce4
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
ransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (627) 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\f2198deecddd5ae56620b594b6b20bf8a20f9c983d4c60144bc6007a53087ce4.exe
    "C:\Users\Admin\AppData\Local\Temp\f2198deecddd5ae56620b594b6b20bf8a20f9c983d4c60144bc6007a53087ce4.exe"
    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:3508
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:2008
    • C:\ProgramData\A489.tmp
      "C:\ProgramData\A489.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4504
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\A489.tmp >> NUL
        3⤵
          PID:1600
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:4392
      • C:\Windows\system32\printfilterpipelinesvc.exe
        C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
        1⤵
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:3956
        • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
          /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{20E73C22-723D-4E31-AAE5-8986845C736C}.xps" 133586557274550000
          2⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of SetWindowsHookEx
          PID:1332
      • 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=4092 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:3552

        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 0e031c18a0f53a3459699522e78d377b9f640b1a491ebcb4c4f3efed726c40d2
              • MD5 SHA1 SHA512
              Submit Download

              A489.tmp
              • Path C:\ProgramData\A489.tmp
              • Size 14KB
              • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
              • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
              • Size 194KB
              • SHA256 792b588f6e11259dc265560c6848e3854e32f960b41b6742a2fc5071f791ccd7
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              {EEBF1568-53F4-487C-B8EA-05D96EA2DBFA}
              • Path C:\Users\Admin\AppData\Local\Temp\{EEBF1568-53F4-487C-B8EA-05D96EA2DBFA}
              • Size 4KB
              • SHA256 6632ab7736c27c885889474f11de2abc391d375634d7daa58b67c5c625894e7c
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              Open Notebook.onetoc2
              • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
              • Size 4KB
              • SHA256 97d7a4d617027ba626e750dfbf18adb2a134c0be71ee9fcec20c4200d2eb19e4
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

              jC7CNxlVt.README.txt
              • Path C:\Users\Admin\jC7CNxlVt.README.txt
              • Size 434B
              • SHA256 6fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
              • MD5 SHA1 SHA512
              Submit Download

              CCCCCCCCCCC
              • Path F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\CCCCCCCCCCC
              • Size 129B
              • SHA256 05a46cb474afb4dfe529124a24b0c74a4e1662dafff7a104b37b9ea5ebcb19bf
              • MD5 SHA1 SHA512
              Submit Download

              memory/1332-2816-0x00007FFE8B830000-0x00007FFE8B840000-memory.dmp
              Download

              memory/1332-2818-0x00007FFE8B830000-0x00007FFE8B840000-memory.dmp
              Download

              memory/1332-2817-0x00007FFE8B830000-0x00007FFE8B840000-memory.dmp
              Download

              memory/1332-2819-0x00007FFE8B830000-0x00007FFE8B840000-memory.dmp
              Download

              memory/1332-2820-0x00007FFE8B830000-0x00007FFE8B840000-memory.dmp
              Download

              memory/1332-2853-0x00007FFE89080000-0x00007FFE89090000-memory.dmp
              Download

              memory/1332-2854-0x00007FFE89080000-0x00007FFE89090000-memory.dmp
              Download

              memory/3508-2803-0x00000000028E0000-0x00000000028F0000-memory.dmp
              Download

              memory/3508-2804-0x00000000028E0000-0x00000000028F0000-memory.dmp
              Download

              memory/3508-0-0x00000000028E0000-0x00000000028F0000-memory.dmp
              Download

              memory/3508-1-0x00000000028E0000-0x00000000028F0000-memory.dmp
              Download