Analysis

  • max time kernel
    146s
  • 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
    14-09-2024 09:20

General

  • Target

    202409149cdb2bbdd9de55d1f79c4999dbe51655darkside.exe

  • Size

    146KB

  • MD5

    9cdb2bbdd9de55d1f79c4999dbe51655

  • SHA1

    f6112548b684898fa2b0bbe4e1cd172455600cb0

  • SHA256

    a9529a8df8a4e970e663bdd3e279303461d3bd4d952fa8a435b30bd70f130e91

  • SHA512

    2850a869b0119b4bcb8c921f0b7e685f4e35a76830f4c05995b8c5535d8b0c3cf3eca4e7b878640b951e7d73e32c09d942ce40e05478d6e24a2f5ea958d59f35

  • SSDEEP

    1536:VzICS4AwwRlcz5AxE4vGP1iU8KnliIs3iocZMgkGJp1Fhheye7Shd8l/Sx2G1oa:26glyuxE4GsUPnliByocWepnexSsl82

Malware Config

Signatures

  • Renames multiple (615) 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\202409149cdb2bbdd9de55d1f79c4999dbe51655darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\202409149cdb2bbdd9de55d1f79c4999dbe51655darkside.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:4804
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:2576
    • C:\ProgramData\B065.tmp
      "C:\ProgramData\B065.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:2336
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\B065.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2412
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:3536
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{6C75B7EB-F1A1-4F11-B1B3-2D43A0FED637}.xps" 133707792456900000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:1184

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2392887640-1187051047-2909758433-1000\OOOOOOOOOOO

      Filesize

      129B

      MD5

      277aec0e64eff3bc8ca0c718ef0f4f1d

      SHA1

      4031628e4c06f9ea532bf5a5f8dda8d7a532cb7b

      SHA256

      8379264e1771b6ccb170bc214bb7acd673fed6068f60547f8f13abb09676d278

      SHA512

      44b951a849c2a1f956ff7a31154deddf886598bc603a8bb9842d0bf60161207a4e4aef57f3bcf69dc0fc457c69b920f99ae8d6bc8de6fb8c864f81d38ac87122

    • C:\ProgramData\B065.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

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

      Filesize

      146KB

      MD5

      77c2d504daa67d99fb844b735ef5d926

      SHA1

      7fcd90b12876fc62f167ba8a513eaa1d7e4dd394

      SHA256

      7f09777a76d41cf8e446014fb0b9ef394aac6a27eeddce241543ab3c4e63f7e2

      SHA512

      c4ad4e7e92704a9c2ead956a48f929bd0cc2d37cc1a05045e9d54a2eca88b67ec60910ae13c518b2ca6b3d51cdca6af41a699cbbc6182ef2a8470846c92ea559

    • C:\Users\Admin\AppData\Local\Temp\{BFD8D127-3630-451F-AB5C-9DAE626BE015}

      Filesize

      4KB

      MD5

      4f9ff948035f11d6c0a9ad6d42e7ff2f

      SHA1

      c072245bb9cb1c0e3a5fd0837bbd165a187f5d8f

      SHA256

      c3e7e9e32fbb211d432483ac36843df65e9d51cfe2444619543b46c4bf022c0d

      SHA512

      f148721f339e5876b4af839ce6398a8666d714a4ec557a76dec24a695f4a41e108891141dbb17600d3240686b3af60ffd0ec15029200ea7b8b9177a19a0967ce

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

      Filesize

      4KB

      MD5

      b643734bb8e070d6d0b2a210627059ed

      SHA1

      31bc3e8c67b91bd99c0484bc6de964507645ac9c

      SHA256

      2fceed018a17271f2d5245aab67b39b9c1b6e9989f9cf88efef6116def95a67a

      SHA512

      a4cb3697df0e57a6d9be2d2255a18bc0f07f4d5eaad8c74bee1ca934c21839e7a9913e6444e2ae71da687a06a4c30f12d8d26c8e11081821bbc8c58411311b65

    • C:\VDDUnR1a6.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

    • F:\$RECYCLE.BIN\S-1-5-21-2392887640-1187051047-2909758433-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      4a9400713e5e57bb9eff2ecf8aa2b143

      SHA1

      b9d3228ab34ce4350ddaaf3a48f3466345877d63

      SHA256

      a825ca85568f84a33cda22448b650cb05abd9e7ea50494ac453ef353b866c3b5

      SHA512

      95eee9ea546e041811a1a78fde653ad7d2af594d9a129bb8d24006723a198d750ba4141929cdbb5b22b5a9c83ec0ea146d122e99a3dcc85f3fc07703b20e0473

    • memory/1184-2970-0x00007FF89B850000-0x00007FF89B860000-memory.dmp

      Filesize

      64KB

    • memory/1184-3005-0x00007FF898EF0000-0x00007FF898F00000-memory.dmp

      Filesize

      64KB

    • memory/1184-2969-0x00007FF89B850000-0x00007FF89B860000-memory.dmp

      Filesize

      64KB

    • memory/1184-3004-0x00007FF898EF0000-0x00007FF898F00000-memory.dmp

      Filesize

      64KB

    • memory/1184-2971-0x00007FF89B850000-0x00007FF89B860000-memory.dmp

      Filesize

      64KB

    • memory/1184-2974-0x00007FF89B850000-0x00007FF89B860000-memory.dmp

      Filesize

      64KB

    • memory/1184-2973-0x00007FF89B850000-0x00007FF89B860000-memory.dmp

      Filesize

      64KB

    • memory/4804-2954-0x00000000034D0000-0x00000000034E0000-memory.dmp

      Filesize

      64KB

    • memory/4804-1-0x00000000034D0000-0x00000000034E0000-memory.dmp

      Filesize

      64KB

    • memory/4804-2-0x00000000034D0000-0x00000000034E0000-memory.dmp

      Filesize

      64KB

    • memory/4804-2955-0x00000000034D0000-0x00000000034E0000-memory.dmp

      Filesize

      64KB

    • memory/4804-0-0x00000000034D0000-0x00000000034E0000-memory.dmp

      Filesize

      64KB

    • memory/4804-2953-0x00000000034D0000-0x00000000034E0000-memory.dmp

      Filesize

      64KB