Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-09-2024 18:01

General

  • Target

    202409167e289e2de04d519e94419ccdc5e9fb0cdarkside.exe

  • Size

    146KB

  • MD5

    7e289e2de04d519e94419ccdc5e9fb0c

  • SHA1

    3a868a8b93da54dcc18f47f67a322a5ab0aa0178

  • SHA256

    c1f9a88541f2175dbe7ac071fa8219e1df77fc7b0efd74c116757b5968ba3405

  • SHA512

    a69d8d4c4875442a2d4c07b887fb47a57eb8f9f1be9fe2720d121460f3684334c44ad64da4f24344e5054603dd7e55ca59996ae86f96598de842d9407e826b39

  • SSDEEP

    3072:E6glyuxE4GsUPnliByocWep+n9l4Tu3c65QBO5:E6gDBGpvEByocWekn9lY65p5

Malware Config

Signatures

  • Renames multiple (641) 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\202409167e289e2de04d519e94419ccdc5e9fb0cdarkside.exe
    "C:\Users\Admin\AppData\Local\Temp\202409167e289e2de04d519e94419ccdc5e9fb0cdarkside.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:1088
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:2968
    • C:\ProgramData\F955.tmp
      "C:\ProgramData\F955.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:4396
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\F955.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4320
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:2672
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2140
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{C3A78A6C-3E36-4D8B-AC73-30CAF7810A89}.xps" 133709833226250000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:5040

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-1302416131-1437503476-2806442725-1000\CCCCCCCCCCC

      Filesize

      129B

      MD5

      7d354003e8c93edd76daea889681d753

      SHA1

      4d673c0f65ca4efeeeacc23d9cae9479afe13e60

      SHA256

      93cefbfbf2c5b1f725d7c3ea8cb5a60cddd8066352eace47f0cd8e84b3044fc5

      SHA512

      fef9c3b29cf154923002d488fd3a53bc2f19aff6d98b69165a2d789c54354a6cf7b03ac0d017a72d507f478f467130664373b95e26a14ab56bea6abb97928d70

    • C:\HphEJKWIi.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

    • C:\ProgramData\F955.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

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

      Filesize

      146KB

      MD5

      18cc96c9170d931857a169d83179f55d

      SHA1

      5a83f808f9e38228daa3e74148401dd4b6f712ee

      SHA256

      de0ced8dd5a5f488e2ae2db2b1401167964f61d5ca30040f5a77b3ede035b789

      SHA512

      a17009e1500b779cbd5cb7e04363d467fed1e0a6b1c2b76eb15d3c54cc5a71406d7f2e80e7b8cbc6638e6f10bf07b4b52d5e7d004cc4a712fc6c04925f92960c

    • C:\Users\Admin\AppData\Local\Temp\{8FDBFC71-BF4C-4F92-83EC-9FC597368B54}

      Filesize

      4KB

      MD5

      01387999d565d0bf7a791315b294fe56

      SHA1

      29c6c554e61da680f786975b7b50968833be6645

      SHA256

      618786f3828bb71b946db9966aa17b0fe84c34297cb2fd6cbd70a96341752c59

      SHA512

      f73694a19de2fd7be1565a44ed9b397b3fe4043c5cf506926404543f9ba5e8f5c84c73f08512dc71074865231dce214e6c94deb95e4f0832b705129051cc535e

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

      Filesize

      4KB

      MD5

      e3c26329ab07aceb01a41455213cfcf7

      SHA1

      3e4bdc04951c5dfb93c4515b92e9a23c74f7105d

      SHA256

      338573e3fc7b20082cf2e170faae85c0c77437f21d0b7d3fd5c3e650e9ac7324

      SHA512

      5ece33860291fd3300f7b7da4a6cff8af62f55e70eb658f423f4ee38631b565193048ee5cd8ec31bf53a940b314069ba119966a5481f0f20b3375c84db3c266e

    • F:\$RECYCLE.BIN\S-1-5-21-1302416131-1437503476-2806442725-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      ee64458b6a576dc6a23a548f490f3434

      SHA1

      8b4692f3f5e51ce9590630ea9c2d918a2c280b9f

      SHA256

      494ee49c5038eeaf210fa67ef7708c912d7bcd51701ab47acacbd8a2d440ec15

      SHA512

      b0b7a7be633736aee73fcda39e62d45dac7b5bb5f2dac3a11a63a198918314f0d19a7baf09c80638348bbcc0540db3b14208fc3994aa1ef89ad2398043d91d74

    • memory/1088-0-0x0000000002670000-0x0000000002680000-memory.dmp

      Filesize

      64KB

    • memory/1088-1-0x0000000002670000-0x0000000002680000-memory.dmp

      Filesize

      64KB

    • memory/1088-2988-0x0000000002670000-0x0000000002680000-memory.dmp

      Filesize

      64KB

    • memory/1088-2989-0x0000000002670000-0x0000000002680000-memory.dmp

      Filesize

      64KB

    • memory/1088-2990-0x0000000002670000-0x0000000002680000-memory.dmp

      Filesize

      64KB

    • memory/1088-2-0x0000000002670000-0x0000000002680000-memory.dmp

      Filesize

      64KB

    • memory/5040-3010-0x00007FF9D6FF0000-0x00007FF9D7000000-memory.dmp

      Filesize

      64KB

    • memory/5040-3007-0x00007FF9D6FF0000-0x00007FF9D7000000-memory.dmp

      Filesize

      64KB

    • memory/5040-3039-0x00007FF9D4890000-0x00007FF9D48A0000-memory.dmp

      Filesize

      64KB

    • memory/5040-3006-0x00007FF9D6FF0000-0x00007FF9D7000000-memory.dmp

      Filesize

      64KB

    • memory/5040-3040-0x00007FF9D4890000-0x00007FF9D48A0000-memory.dmp

      Filesize

      64KB

    • memory/5040-3008-0x00007FF9D6FF0000-0x00007FF9D7000000-memory.dmp

      Filesize

      64KB

    • memory/5040-3009-0x00007FF9D6FF0000-0x00007FF9D7000000-memory.dmp

      Filesize

      64KB