Analysis

  • max time kernel
    118s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-08-2023 15:27

General

  • Target

    485b9fd90d99ec5e6683fa4448924da8_darkside_JC.exe

  • Size

    58KB

  • MD5

    485b9fd90d99ec5e6683fa4448924da8

  • SHA1

    744d07feeaa7cb10b11d5ec72418bd1ecbbba819

  • SHA256

    93cb3d33780673999559924e7df3f1d930ab9eda4ce61f8c6fed80547c8b7234

  • SHA512

    3734e195e9a9a73a5ae0b8daa88b62303da69a2734312448cf26d469c2a811e0ebe4bfd0b90f56e6bf1998d1b4baccece7811bcb78bec1f196819e289f45a0b6

  • SSDEEP

    768:ZjjmbIax7F3DS4/S9+CuUSbVAdNcxGV1ylvMpY23W58:Cx7Fu4/ihrhDTV1ylvMSZ58

Malware Config

Extracted

Path

C:\Users\README.795a92b9.TXT

Family

darkside

Ransom Note
----------- [ Welcome to DarkSide ] -------------> What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted. We use strong encryption algorithms, so you cannot decrypt your data. But you can restore everything by purchasing a special program from us - universal decryptor. This program will restore all your network. Follow our instructions below and you will recover all your data. What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. How to get access on website? ---------------------------------------------- Using a TOR browser: 1) Download and install TOR browser from this site: https://torproject.org/ 2) Open our website: http://darksidfqzcuhtk2.onion/CZEX8E0GR0AO4ASUCJE1K824OKJA1G24B8B3G0P84LJTTE7W8EC86JBE7NBXLMRT When you open our website, put the following data in the input form: Key: 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 !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
URLs

http://darksidfqzcuhtk2.onion/CZEX8E0GR0AO4ASUCJE1K824OKJA1G24B8B3G0P84LJTTE7W8EC86JBE7NBXLMRT

Signatures

  • DarkSide

    Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.

  • Renames multiple (149) files with added filename extension

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies Control Panel 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\485b9fd90d99ec5e6683fa4448924da8_darkside_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\485b9fd90d99ec5e6683fa4448924da8_darkside_JC.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2844
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2204
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /C DEL /F /Q C:\Users\Admin\AppData\Local\Temp\485B9F~1.EXE >> NUL
      2⤵
        PID:5168
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:352

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    1
    T1005

    Impact

    Defacement

    1
    T1491

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
      Filesize

      3KB

      MD5

      556084f2c6d459c116a69d6fedcc4105

      SHA1

      633e89b9a1e77942d822d14de6708430a3944dbc

      SHA256

      88cc4f40f0eb08ff5c487d6db341b046cc63b22534980aca66a9f8480692f3a8

      SHA512

      0f6557027b098e45556af93e0be1db9a49c6416dc4afcff2cc2135a8a1ad4f1cf7185541ddbe6c768aefaf2c1a8e52d5282a538d15822d19932f22316edd283e

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
      Filesize

      1KB

      MD5

      2247453c28acd1eb75cfe181540458a8

      SHA1

      851fc5a9950d422d76163fdc6a453d6859d56660

      SHA256

      358b8df2d92a70274c5ec8e50bf6353c37a7fe1855fd9659f610f8a96eac19bd

      SHA512

      42475e640ee70ab4bd7350dbd970c5862f1597918b6a5e3ee038a10a5c5b883ac61038ecec51a7bfe7cb615798d832fae4a3ead9571f35825a644dee1f2dd7d3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_i5p0yie5.22d.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\README.795a92b9.TXT
      Filesize

      1KB

      MD5

      65494ea6831e577d82fac2b91b9c3d43

      SHA1

      5c23717d22ee9b94306f2d5a2a53c60aca03eb8c

      SHA256

      5e98b41a51606e16dda30ad4a49457227f75d71ad2004e2942c6b8de6202c4f3

      SHA512

      28ba13f7793ac8271af03b26eaeba6cbe707bf1f07fb1792818a6ab270d1c20d0091ef4a10c092f60c373aefe09698d2b470ec6a7f8cfa47103fd8bbb8d7a7bb

    • memory/2204-142-0x0000017ABD030000-0x0000017ABD052000-memory.dmp
      Filesize

      136KB

    • memory/2204-147-0x00007FF8F5D30000-0x00007FF8F67F1000-memory.dmp
      Filesize

      10.8MB

    • memory/2204-148-0x0000017AA2980000-0x0000017AA2990000-memory.dmp
      Filesize

      64KB

    • memory/2204-149-0x0000017AA2980000-0x0000017AA2990000-memory.dmp
      Filesize

      64KB

    • memory/2204-152-0x00007FF8F5D30000-0x00007FF8F67F1000-memory.dmp
      Filesize

      10.8MB