Analysis

  • max time kernel
    150s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2022, 04:41

General

  • Target
    blackcat2.exe
  • Size 2.6MB
  • Sample221229-fbk13acd33
  • SHA256 0c6f444c6940a3688ffc6f8b9d5774c032e3551ebbccb64e4280ae7fc1fac479
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • blackcat

Credentials
  • Username

    KELLERSUPPLY\Administrator

  • Password

    d@gw00d

Credentials
  • Username

    KELLERSUPPLY\AdminRecovery

  • Password

    K3ller!$Supp1y

Credentials
  • Username

    .\Administrator

  • Password

    d@gw00d

Credentials
  • Username

    .\Administrator

  • Password

    K3ller!$Supp1y

Attributes
  • enable_network_discovery

    true

  • enable_self_propagation

    false

  • enable_set_wallpaper

    true

  • extension

    sykffle

  • note_file_name

    RECOVER-${EXTENSION}-FILES.txt

  • note_full_text

    >> Introduction Important files on your system was ENCRYPTED and now they have have "${EXTENSION}" extension. In order to recover your files you need to follow instructions below. >> Sensitive Data Sensitive data on your system was DOWNLOADED and it will be PUBLISHED if you refuse to cooperate. Data includes: - Employees personal data, CVs, DL, SSN. - Complete network map including credentials for local and remote services. - Financial information including clients data, bills, budgets, annual reports, bank statements. - Complete datagrams/schemas/drawings for manufacturing in solidworks format - And more... Private preview is published here: http://zujgzbu5y64xbmvc42addp4lxkoosb4tslf5mehnh7pvqjpwxn5gokyd.onion/b21e1fb6-ff88-425b-8339-3523179a1e3e/886cf430a907bbe9a3fd38fb704d524dbd199c1b042ad6f65dc72ad78704e21 >> CAUTION DO NOT MODIFY FILES YOURSELF. DO NOT USE THIRD PARTY SOFTWARE TO RESTORE YOUR DATA. YOU MAY DAMAGE YOUR FILES, IT WILL RESULT IN PERMANENT DATA LOSS. YOUR DATA IS STRONGLY ENCRYPTED, YOU CAN NOT DECRYPT IT WITHOUT CIPHER KEY. >> Recovery procedure Follow these simple steps to get in touch and recover your data: 1) Download and install Tor Browser from: https://torproject.org/ 2) Navigate to: http://mu75ltv3lxd24dbyu6gtvmnwybecigs5auki7fces437xvvflzva2nqd.onion/?access-key=${ACCESS_KEY}

rsa_pubkey.plain

Signatures

  • BlackCat

    A Rust-based ransomware sold as RaaS first seen in late 2021.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\blackcat2.exe
    "C:\Users\Admin\AppData\Local\Temp\blackcat2.exe"
    1⤵
      PID:1188
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:4784
      • C:\Windows\system32\taskmgr.exe
        "C:\Windows\system32\taskmgr.exe" /4
        1⤵
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4252
      • C:\Users\Admin\AppData\Local\Temp\blackcat2.exe
        "C:\Users\Admin\AppData\Local\Temp\blackcat2.exe"
        1⤵
          PID:1396

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/1188-132-0x0000000000400000-0x00000000006C7000-memory.dmp

              memory/1188-133-0x0000000000400000-0x00000000006C7000-memory.dmp

              memory/1396-134-0x0000000000400000-0x00000000006C7000-memory.dmp