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
    06-10-2024 04:57

General

  • Target

    2024-10-06_e09dd7cca0c6c147ba21b4062e723c5b_darkside.exe

  • Size

    146KB

  • MD5

    e09dd7cca0c6c147ba21b4062e723c5b

  • SHA1

    ff6333bdda824e4c13bcd13351bd4bb14aaeab11

  • SHA256

    d9938ac4346d03a07f8ce8b57436e75ba5e936372b9bfd0386f18f6d56902c88

  • SHA512

    603f45dc0b3302739ef6e4727572ecf64cf6f65c80af1e05aa3795fc9ce36849cf0f465bbf8a9f116c8fb3da8d91998ec5582b24503f4f43764e7b3543a94c4e

  • SSDEEP

    3072:yqJogYkcSNm9V7DNDgSKet5JXglKso1WT:yq2kc4m9tDjlrJX3so

Malware Config

Extracted

Path

C:\fB1SZ2i3X.README.txt

Ransom Note
>>>> Your data are stolen and encrypted! >>>> Sensitive data on your system was DOWNLOADED and it will be PUBLISHED if you refuse to cooperate. Your competitors or law enforcement may get them on the web. Data includes: - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Financial information including clients data, bills, budgets, annual reports, bank statements. - Complete datagrams/schemas/drawings for manufacturing in solidworks format - And more... You can request the tree of files that we have. >>>> You need contact us and decrypt one file for free, send a small file for test decryption with your personal DECRYPTION ID to tox chat: >>>> Your personal DECRYPTION ID: 7FBC34A4128F7B756951645128A273D7 1)Download and install TOX chat: https://tox.chat 2)Write to this tox id: DED25DCB2AAAF65A05BEA584A0D1BB1D55DD2D8BB4185FA39B5175C60C8DDD0C0A7F8A8EC815 and wait for the answer, we will always answer you. >>>> DO NOT MODIFY FILES YOURSELF. >>>> DO NOT USE THIRD PARTY SOFTWARE TO RESTORE YOUR DATA. >>>> YOU MAY DAMAGE YOUR FILES, IT WILL RESULT IN PERMANENT DATA LOSS. >>>> YOUR DATA IS STRONGLY ENCRYPTED, YOU CAN NOT DECRYPT IT WITHOUT CIPHER KEY.
URLs

https://tox.chat

Signatures

  • Renames multiple (644) 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 3 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 1 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\2024-10-06_e09dd7cca0c6c147ba21b4062e723c5b_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-06_e09dd7cca0c6c147ba21b4062e723c5b_darkside.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3900
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:5000
    • C:\ProgramData\C71A.tmp
      "C:\ProgramData\C71A.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:5060
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\C71A.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4308
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:3052
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2396
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{60DEAA61-2CC9-4C25-9964-E8B36B8C1E17}.xps" 133726642746180000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:2420

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-523280732-2327480845-3730041215-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      d7b2ae08ff5dea88ba8d6947c7b77e75

      SHA1

      d6881f1bc0f41f076b1ab9fea0c35098a8bb9571

      SHA256

      7fb64e3d972032051c065a55da08db26a75f51cb9c4d171e953b2cb98ea32f80

      SHA512

      2d8e235aa68775aa6b49d3cb131c4b0a6715648c132f6b493c67bef4d4869d5a121e578512935e02620b3a2c701a6288e9d8ca9387113a064239d818b3f85acb

    • C:\ProgramData\C71A.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

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

      Filesize

      146KB

      MD5

      8fea43172403b77f0a1c1c8ab5ed36fc

      SHA1

      e38bc9d959ce9ffe747e920e3982711c70c8a86c

      SHA256

      fa643c9c1e7bd7f1171e52bb08ce03d258c09ada69ef60c6727ee18f5e9d1e63

      SHA512

      b66c74633779dfd74a1b79360f1feb742ba8361cc04695eb578f4ed4fc584bf797f3bc0dac47367687bba52480c4e1c8ab00648d383ac2f0bebc936f425d62c6

    • C:\Users\Admin\AppData\Local\Temp\{9EC48BEC-BAF3-4258-9433-75B5F52D18C1}

      Filesize

      4KB

      MD5

      ed78a1861034e9960857af7717120053

      SHA1

      c9659b253b662749fb1d00b7818e8f6efb28e7b6

      SHA256

      427463534e0d59b900d885983455267828a4a62f383ecfdf1554e576b71487fd

      SHA512

      bc471fa426127c917601c1d9e6705a5e1a0f4a77dbed8f237f34ac5a54240c58e208f4c0e1b08e145d05010b6ea7b5416aaaa80b1f3601aff1405f82f992a578

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

      Filesize

      4KB

      MD5

      cd3865f98dc4f46ebfb1388d17baf8b7

      SHA1

      9009d64886ffff1ff0d51bc1fe40ba4fbeb4b16c

      SHA256

      5643b236d7b22bf1e18052be8f2fde264c098f5fa14fbc370054e267507885be

      SHA512

      e3dbd532d8bf71f135d69a94acd96743dd3e0647bb01649d027d6827b939ec50a84b04a36f8a11bfd2b99ee45dbbaed5dc702646174a17420be0873bfcfa0e4d

    • C:\fB1SZ2i3X.README.txt

      Filesize

      1KB

      MD5

      5c30927283ce4f49f8d15d3f4e02a3dd

      SHA1

      6a503b65beecb2d9b34fe6612e34a9ec42c6c3b0

      SHA256

      a27b13addbf8e8e362638839b693027ada45cdd3db02008d55bb13ba4e1ecd9c

      SHA512

      680612011383a8d3e9ab2ae3586bd6f84240900292d4fe9065784a17a4ab2ec607ade6dabc221ae1fba67dfb1f481f3ae74209dbe750efbfd04f63ef24630ba0

    • F:\$RECYCLE.BIN\S-1-5-21-523280732-2327480845-3730041215-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      7dba15818ac8b5b8fb6672261322997c

      SHA1

      78b0f400f21817302e248fed461e859662ed580d

      SHA256

      b96e9b907b90295841864840de62c16964cd88f9e23b4a6d38291db486b03d66

      SHA512

      7ba04a90618021ba2dd7b83ad83b4fd99d8202633501c3d5bca0de4551cf16cf046e6620f656e223a440cf71528924266e13db507f93331c3779da5824994b81

    • memory/2420-2995-0x00007FF8D4350000-0x00007FF8D4360000-memory.dmp

      Filesize

      64KB

    • memory/2420-2994-0x00007FF8D4350000-0x00007FF8D4360000-memory.dmp

      Filesize

      64KB

    • memory/2420-2996-0x00007FF8D4350000-0x00007FF8D4360000-memory.dmp

      Filesize

      64KB

    • memory/2420-2997-0x00007FF8D4350000-0x00007FF8D4360000-memory.dmp

      Filesize

      64KB

    • memory/2420-2998-0x00007FF8D4350000-0x00007FF8D4360000-memory.dmp

      Filesize

      64KB

    • memory/2420-3027-0x00007FF8D22F0000-0x00007FF8D2300000-memory.dmp

      Filesize

      64KB

    • memory/2420-3028-0x00007FF8D22F0000-0x00007FF8D2300000-memory.dmp

      Filesize

      64KB

    • memory/3900-2977-0x00000000029C0000-0x00000000029D0000-memory.dmp

      Filesize

      64KB

    • memory/3900-1-0x00000000029C0000-0x00000000029D0000-memory.dmp

      Filesize

      64KB

    • memory/3900-2976-0x00000000029C0000-0x00000000029D0000-memory.dmp

      Filesize

      64KB

    • memory/3900-2978-0x00000000029C0000-0x00000000029D0000-memory.dmp

      Filesize

      64KB

    • memory/3900-0-0x00000000029C0000-0x00000000029D0000-memory.dmp

      Filesize

      64KB

    • memory/3900-2-0x00000000029C0000-0x00000000029D0000-memory.dmp

      Filesize

      64KB