Overview

overview

10

Static

static

10

2024-09-15...de.exe

windows7-x64

9

2024-09-15...de.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    147s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/09/2024, 01:00

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General

  • Target
    2024-09-15_9975ff283711f64271dc5d2c8cfec6ec_darkside.exe
  • Size 146KB
  • Sample240915-bcxn2axbql
  • SHA256 de458c5c1c0463584e98440fef6062ae3357f3a56068813333836b2d197214b6
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (616) 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
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • 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\2024-09-15_9975ff283711f64271dc5d2c8cfec6ec_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-15_9975ff283711f64271dc5d2c8cfec6ec_darkside.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:224
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:4308
    • C:\ProgramData\B825.tmp
      "C:\ProgramData\B825.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:704
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\B825.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3952
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:4700
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2480
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{44ABED40-1081-436D-8A30-666882915F69}.xps" 133708356453030000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:3416

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          EEEEEEEEEEE
          • Path C:\$Recycle.Bin\S-1-5-21-786284298-625481688-3210388970-1000\EEEEEEEEEEE
          • Size 129B
          • SHA256 c3f7a3a518d0c0afbcb02b978babde7c299bc31464cdb40574fe0ce0d6976bc7
          • MD5 SHA1 SHA512
          Submit Download

          B825.tmp
          • Path C:\ProgramData\B825.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
          • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
          • Size 146KB
          • SHA256 57ac51261c51fba0cb4e1ff3a760bf43bdf045eb7069e4db06b7c2951e554bb6
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          {0D96295C-535D-411A-A4A2-7D70CD014A2B}
          • Path C:\Users\Admin\AppData\Local\Temp\{0D96295C-535D-411A-A4A2-7D70CD014A2B}
          • Size 4KB
          • SHA256 915845c70c5b0d3167a619986bb062cc3489f660488a909c4ad32b46ed262f2d
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          Open Notebook.onetoc2
          • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
          • Size 4KB
          • SHA256 3acb4888925136fa130656e43b88f4c49b96589f8214fb6bdf35814b2a049c1d
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          lPX2S2HSk.README.txt
          • Path C:\lPX2S2HSk.README.txt
          • Size 343B
          • SHA256 eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7
          • MD5 SHA1 SHA512
          Submit Download

          DDDDDDDDDDD
          • Path F:\$RECYCLE.BIN\S-1-5-21-786284298-625481688-3210388970-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 8a6eddad065d20da3bc937659f3139bb2d3a16733b16c843db079168a8f8ac8a
          • MD5 SHA1 SHA512
          Submit Download

          memory/224-2868-0x0000000002B10000-0x0000000002B20000-memory.dmp
          Download

          memory/224-2869-0x0000000002B10000-0x0000000002B20000-memory.dmp
          Download

          memory/224-2-0x0000000002B10000-0x0000000002B20000-memory.dmp
          Download

          memory/224-1-0x0000000002B10000-0x0000000002B20000-memory.dmp
          Download

          memory/224-0-0x0000000002B10000-0x0000000002B20000-memory.dmp
          Download

          memory/224-2867-0x0000000002B10000-0x0000000002B20000-memory.dmp
          Download

          memory/3416-2882-0x00007FF7FEC50000-0x00007FF7FEC60000-memory.dmp
          Download

          memory/3416-2889-0x00007FF7FEC50000-0x00007FF7FEC60000-memory.dmp
          Download

          memory/3416-2883-0x00007FF7FEC50000-0x00007FF7FEC60000-memory.dmp
          Download

          memory/3416-2918-0x00007FF7FC540000-0x00007FF7FC550000-memory.dmp
          Download

          memory/3416-2919-0x00007FF7FC540000-0x00007FF7FC550000-memory.dmp
          Download

          memory/3416-2884-0x00007FF7FEC50000-0x00007FF7FEC60000-memory.dmp
          Download

          memory/3416-2881-0x00007FF7FEC50000-0x00007FF7FEC60000-memory.dmp
          Download