Overview

overview

10

Static

static

10

2024-09-18...de.exe

windows7-x64

9

2024-09-18...de.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    147s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/09/2024, 23:17

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General

  • Target
    2024-09-18_b49f2ded048a1c07e09e731d84c7bbb8_darkside.exe
  • Size 146KB
  • Sample240918-29txhsybpg
  • SHA256 4178821f84d63a57ba7858c0b1e6adfa9d206943c06ac70b1a497d9269388db3
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (607) 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\2024-09-18_b49f2ded048a1c07e09e731d84c7bbb8_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-18_b49f2ded048a1c07e09e731d84c7bbb8_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:1932
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:3988
    • C:\ProgramData\9ED1.tmp
      "C:\ProgramData\9ED1.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:4908
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\9ED1.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3656
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:1468
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{FCAE5EC7-177E-417C-A5A7-5B093FDEB5BC}.xps" 133711750505000000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:4428

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          UUUUUUUUUUU
          • Path C:\$Recycle.Bin\S-1-5-21-2718105630-359604950-2820636825-1000\UUUUUUUUUUU
          • Size 129B
          • SHA256 766a3b1174536f8dd33635de9bad3a8e6efb2885b5cf6264457146bc71257de5
          • MD5 SHA1 SHA512
          Submit Download

          5OaQNrui8.README.txt
          • Path C:\5OaQNrui8.README.txt
          • Size 343B
          • SHA256 eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7
          • MD5 SHA1 SHA512
          Submit Download

          9ED1.tmp
          • Path C:\ProgramData\9ED1.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
          • Path C:\Users\Admin\AppData\Local\Temp\EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
          • Size 146KB
          • SHA256 5355e100f636c62ffb078a480b71c02d06411f7b98b2b3b87fdffd367fe720dd
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          {913BD68F-BCEE-4E94-AD83-5C0962DFF93F}
          • Path C:\Users\Admin\AppData\Local\Temp\{913BD68F-BCEE-4E94-AD83-5C0962DFF93F}
          • Size 4KB
          • SHA256 f742228ac4bf47f0be2fe4489f144a2418d2988ffba86a4b5996527813947ebc
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          Open Notebook.onetoc2
          • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
          • Size 4KB
          • SHA256 7492ef12e0356cd8b952afb617577dc540758aae61b8d3879fd3183228c0ce95
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          DDDDDDDDDDD
          • Path F:\$RECYCLE.BIN\S-1-5-21-2718105630-359604950-2820636825-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 3ac5fdaa356c6ace8e353ab8a382d0555b7d02fa88dfbe4d61072dfb18dd8b86
          • MD5 SHA1 SHA512
          Submit Download

          memory/1932-2769-0x00000000029C0000-0x00000000029D0000-memory.dmp
          Download

          memory/1932-2770-0x00000000029C0000-0x00000000029D0000-memory.dmp
          Download

          memory/1932-2-0x00000000029C0000-0x00000000029D0000-memory.dmp
          Download

          memory/1932-0-0x00000000029C0000-0x00000000029D0000-memory.dmp
          Download

          memory/1932-1-0x00000000029C0000-0x00000000029D0000-memory.dmp
          Download

          memory/1932-2768-0x00000000029C0000-0x00000000029D0000-memory.dmp
          Download

          memory/4428-2786-0x00007FFF06750000-0x00007FFF06760000-memory.dmp
          Download

          memory/4428-2785-0x00007FFF06750000-0x00007FFF06760000-memory.dmp
          Download

          memory/4428-2782-0x00007FFF06750000-0x00007FFF06760000-memory.dmp
          Download

          memory/4428-2805-0x00007FFF044C0000-0x00007FFF044D0000-memory.dmp
          Download

          memory/4428-2820-0x00007FFF044C0000-0x00007FFF044D0000-memory.dmp
          Download

          memory/4428-2784-0x00007FFF06750000-0x00007FFF06760000-memory.dmp
          Download

          memory/4428-2781-0x00007FFF06750000-0x00007FFF06760000-memory.dmp
          Download