Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-09-2024 20:02

General

  • Target

    2024-09-17_a5052518e8735f52112f0eec7f0416f9_darkside.exe

  • Size

    146KB

  • MD5

    a5052518e8735f52112f0eec7f0416f9

  • SHA1

    5442e7cbd8d82d70937c1bd599472e7f202224d0

  • SHA256

    fa0259d8b6d87ae11532b7c3e26ef3ace9df21ae3919e97c73de88c6b75d2fb1

  • SHA512

    254fa270339145cba103b0cae10813548b54e0127f88c709dbbc83fc43a0dc828ef3d07ab19c917469e76a45a0903a858bbdc900412f11072f2d80677de2017d

  • SSDEEP

    3072:h6glyuxE4GsUPnliByocWepGEIqC6f7VaIAhzSCn8X:h6gDBGpvEByocWemFBV8

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\2024-09-17_a5052518e8735f52112f0eec7f0416f9_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-17_a5052518e8735f52112f0eec7f0416f9_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:3108
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:4728
    • C:\ProgramData\F9E2.tmp
      "C:\ProgramData\F9E2.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:2040
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\F9E2.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4528
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:868
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3084
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{AFB5A398-9C6C-4DC9-81D3-643B9B3C8F82}.xps" 133710769740820000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:1340

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-786284298-625481688-3210388970-1000\desktop.ini

      Filesize

      129B

      MD5

      fcc4d4ffff9791b072b1ca31cd028b19

      SHA1

      24e8d7da7052d0a8def236d6935b0c664c0465a2

      SHA256

      02aac39b714a87ea9b4113711529cd1f698f70960cb2bb734653ba25ad547046

      SHA512

      7b8aacb3d65449f6485b790377d48ccc3613c0e1f338a5bcca53f28e9d7aafba03bc764496c1584b99a2af816a1c32d0b01fe4a46a330af1f5a241cddc4560ec

    • C:\ProgramData\F9E2.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

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

      Filesize

      146KB

      MD5

      e39210f872a023473791dc7d53d24645

      SHA1

      523b553af544e1a537a7a18aa1208e301a1611ff

      SHA256

      9adf65507958ae4eba9083bb33c3bbfdeb5724cee4a0a6a7a226a3adef70467f

      SHA512

      7d776f330a2bb19646622b6f7d12eea38c64ae8446b3510b3d01ed36711ac7de845ebefac0d023c69f53f470e5a1245639c7ee6dd87208a7e310b6c27933f0f5

    • C:\Users\Admin\AppData\Local\Temp\{79E5DC2D-EF55-422F-83F9-994A2EE4240C}

      Filesize

      4KB

      MD5

      f287e8b91165f2db6bd3c4d0448d45de

      SHA1

      02ba3bfeae9cf6256a3eb275a9ef8138c4a34fe9

      SHA256

      c522be485bf4adc1aea32246eca04de114029eb8ac5a086c0f41b0f53e829f3f

      SHA512

      27ab112d7274fb9767fb16001602bb012c7fee3e926fc18f7727b3e85a53628beb682f0ed553118dce1eb065f615f614abcc2960570e9e4a581a8a4472b70ba8

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

      Filesize

      4KB

      MD5

      c573cc2c5edc5287f8e3d4d5f0c16aba

      SHA1

      93fa9a9d637f1f94d392e79de03835160b7424ce

      SHA256

      7bfdfdbe8a17d3ed327161a045f63ee121409587555d602e5d75a75800bfe926

      SHA512

      8a980c314f8607065b9df698e333884db5bf37e91a73c3eb84bd8259a6399c9c3a5fd21523e9b34c512b222fc2b6f3f47b592d865f1dbf753384e82d315d9d89

    • C:\iMWl3xQaf.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

    • F:\$RECYCLE.BIN\S-1-5-21-786284298-625481688-3210388970-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      6765605162193dfb417c657751ffd3ea

      SHA1

      8d9d77b583f697e209d5a04818c5f220947ec01c

      SHA256

      59d03f566114587b4c9ec802c2ff216f6c135338b1f8fb50ec2b4b0ec1c210e3

      SHA512

      6c8a8fff89ad81b773f7066d574423eab5fb9f53fdc40b966076f96f039c90cfb7309fd85a4cf0fed6e5c4e997649c9a9294f9ff5ebb532b360b3e16485bb7aa

    • memory/1340-2975-0x00007FFA8B1F0000-0x00007FFA8B200000-memory.dmp

      Filesize

      64KB

    • memory/1340-3005-0x00007FFA89100000-0x00007FFA89110000-memory.dmp

      Filesize

      64KB

    • memory/1340-2968-0x00007FFA8B1F0000-0x00007FFA8B200000-memory.dmp

      Filesize

      64KB

    • memory/1340-3004-0x00007FFA89100000-0x00007FFA89110000-memory.dmp

      Filesize

      64KB

    • memory/1340-2971-0x00007FFA8B1F0000-0x00007FFA8B200000-memory.dmp

      Filesize

      64KB

    • memory/1340-2970-0x00007FFA8B1F0000-0x00007FFA8B200000-memory.dmp

      Filesize

      64KB

    • memory/1340-2973-0x00007FFA8B1F0000-0x00007FFA8B200000-memory.dmp

      Filesize

      64KB

    • memory/3108-2954-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

      Filesize

      64KB

    • memory/3108-1-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

      Filesize

      64KB

    • memory/3108-0-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

      Filesize

      64KB

    • memory/3108-2955-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

      Filesize

      64KB

    • memory/3108-2-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

      Filesize

      64KB

    • memory/3108-2953-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

      Filesize

      64KB