Resubmissions

02-09-2024 06:45

240902-hh76aavbjj 10

02-09-2024 06:24

240902-g6hpvsvfla 10

Analysis

  • max time kernel
    147s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-09-2024 06:24

General

  • Target

    2024-09-02_20b0043ff680ffd554923069b7150b6a_darkside.exe

  • Size

    147KB

  • MD5

    20b0043ff680ffd554923069b7150b6a

  • SHA1

    5f5caf42e317e617994069453fb1c8d86fd2f1ee

  • SHA256

    879e3a5051e3d56eaac8056e91dd8dcd11433198c0fc40866bf074c16f333ded

  • SHA512

    a0757ad09a010d4ba7f3b5558e0e232c1faf3ca4e7b83d343150beee2b5341b767cbaaf4a17d9f3bb0e8f76b9a20f9fddf05c37ff3cdbfb28168dcdff160da44

  • SSDEEP

    3072:x6glyuxE4GsUPnliByocWepFsvLGJJC0iohCI:x6gDBGpvEByocWe3svLMJhr

Malware Config

Signatures

  • Renames multiple (633) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • 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.

  • 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.

  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • 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.

  • 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
  • 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\2024-09-02_20b0043ff680ffd554923069b7150b6a_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-02_20b0043ff680ffd554923069b7150b6a_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:1764
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:5088
    • C:\ProgramData\D0DE.tmp
      "C:\ProgramData\D0DE.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:1940
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\D0DE.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4048
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:4908
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3940
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{35F4DD33-EF07-4577-828B-90B3084C6F6B}.xps" 133697319041720000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:3776

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini

      Filesize

      129B

      MD5

      6d1de3737a31de5a756f7f9eb6bd8eb1

      SHA1

      4f840eee6984bfdeb759403c0abb0ecd153a76be

      SHA256

      a397b86f3bc54e661c19ed184ea3980a3f8fd5fe196d5dfa011a2b05a858c65e

      SHA512

      b24c7175b10802e3a09568f050012b70a6db7bc22401da7405de73cc4af42e9de8894f54601f4ef8934e01393f00f2cca530bab55d605172f99ee0fba01c4f3f

    • C:\N7prImOYL.README.txt

      Filesize

      1KB

      MD5

      f85801533c317ea9eaebe2a49a3a8eac

      SHA1

      bb69bd97d68aaec2d3ce5c6d895322374dc3ead1

      SHA256

      45dbe45beb75f80f6e34bd00a7bd35970ded5acbbe2b4465884c9853e2b87e5b

      SHA512

      c049ecfb09322a3439a5f6e2b463d60f9910a8ecc2e73754460153109eb630c06018bebaaea00c7db262e9d5756cc45835e803efc4caab9c961401107a0dd4c4

    • C:\ProgramData\D0DE.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

      Filesize

      147KB

      MD5

      78d3e919a38ca5d6ea511085dda4810d

      SHA1

      9f62819d32cd3d380d65735ee206f9c11597a18c

      SHA256

      59af9d3411cbcce96dcfaed54e43b9d8897f845e94a47a0fe66aa6cd93cd8265

      SHA512

      efeb584f0a6339227cf49fc610349f87255130aa369b1580e9aa4eb14263f5bd77be1bde18adbf242db2cd98443ae9b38758f94b60bcd29a2694d8a2c8687abb

    • C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2

      Filesize

      4KB

      MD5

      8c724ba680cb93d27cc81aa32c8e86be

      SHA1

      4c8d81366e0326191eda71e2d43ab581b4cfe716

      SHA256

      9bbff581e3f295da9ef66a922d0605d27fc5fc7db687ce34be8018a72c9c9381

      SHA512

      87e282dc896cf43d3d4dc51c8373481d8671b076575d45c5f55e5124bf988465e192271f21d222f4bb90ef700bf91375bc6e2f7ad3ee785b80962e4a78c2327a

    • F:\$RECYCLE.BIN\S-1-5-21-2412658365-3084825385-3340777666-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      f57d246d27c5f9f310a5eea05497b795

      SHA1

      9aa6717e1ebcbbbe58911f2a53513a0f0eefddff

      SHA256

      04a276122a9b516bf2789e30b7169a5812bbc48cbb9204458d0303a637b69deb

      SHA512

      b047387b3393acb2d75e2d649ee994e04275c71a32180852c09028c60f1ca653dcde4c1d30d798c454db700f2b1049557b587353a8ae8d606fc005a8721de1e7

    • memory/1764-2982-0x0000000002480000-0x0000000002490000-memory.dmp

      Filesize

      64KB

    • memory/1764-2981-0x0000000002480000-0x0000000002490000-memory.dmp

      Filesize

      64KB

    • memory/1764-1-0x0000000002480000-0x0000000002490000-memory.dmp

      Filesize

      64KB

    • memory/1764-2980-0x0000000002480000-0x0000000002490000-memory.dmp

      Filesize

      64KB

    • memory/1764-2-0x0000000002480000-0x0000000002490000-memory.dmp

      Filesize

      64KB

    • memory/1764-0-0x0000000002480000-0x0000000002490000-memory.dmp

      Filesize

      64KB

    • memory/3776-3000-0x00007FFCA5A70000-0x00007FFCA5A80000-memory.dmp

      Filesize

      64KB

    • memory/3776-2999-0x00007FFCA5A70000-0x00007FFCA5A80000-memory.dmp

      Filesize

      64KB

    • memory/3776-2998-0x00007FFCA5A70000-0x00007FFCA5A80000-memory.dmp

      Filesize

      64KB

    • memory/3776-3001-0x00007FFCA5A70000-0x00007FFCA5A80000-memory.dmp

      Filesize

      64KB

    • memory/3776-3002-0x00007FFCA5A70000-0x00007FFCA5A80000-memory.dmp

      Filesize

      64KB

    • memory/3776-3031-0x00007FFCA3970000-0x00007FFCA3980000-memory.dmp

      Filesize

      64KB

    • memory/3776-3032-0x00007FFCA3970000-0x00007FFCA3980000-memory.dmp

      Filesize

      64KB