Analysis

  • max time kernel
    151s
  • max time network
    94s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    21-08-2021 10:33

General

  • Target

    acer.bin.exe

  • Size

    56KB

  • MD5

    979692cd7fc638beea6e9d68c752f360

  • SHA1

    c511ae4d80aaa281c610190aa13630de61ca714c

  • SHA256

    0a0c225f0e5ee941a79f2b7701f1285e4975a2859eb4d025d96d9e366e81abb9

  • SHA512

    d7b7b6a968e6d7b7f3e7f98decb6b331b08122e491bf0b0dbe243223fb177218a758c34830f20c47f2a799acdd146297ec7f930c2bb4d5c6830ce65c8274ea6d

Score
10/10

Malware Config

Extracted

Path

C:\\README.949640ab.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. Data leak ---------------------------------------------- First of all we have downloaded more then 500GB data from your network. Included: -Accounting data -Finance data -HR -Employees confidential data(photos, benefits, taxes, etc) -Marketing -Budgets -Taxes(sales tax compliance, property, income and franchise taxes, etc) -Payrolls -Banking data -Arbitration -Scans -Insurance -Reconciliations -Reports(monthly bank inventory, monthly financial, claims reports, etc) -Audits(DHG, insurance audits, etc) -B2B clients config data -Confidentiality 2020 -2020, 2021 Business plans -2019, 2020, 2021 years Closing (full dumps) -and a lot of other sensitive data Your personal leak page: http://darksidc3iux462n6yunevoag52ntvwp6wulaz3zirkmh4cnz6hhj7id.onion/162/thedixiegroup/LCfyHRcwffrYTblpZvoPO3XDbrYPcNu0wVAsH5p49LSjBfzTmtdXT48azXFlMu7q On the page you will find examples of files that have been downloaded. The data is preloaded and will be automatically published if you do not pay. After publication, your data will be available for at least 6 months on our tor cdn servers. 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 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://dark24zz36xm4y2phwe7yvnkkkkhxionhfrwp67awpb3r3bdcneivoqd.onion/W57MRI9C7YZJUZEABBBYRQLSUTG22JZ9MAH0WT1ISHC405KP7Z2UWY3AI3J68DNM 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://darksidc3iux462n6yunevoag52ntvwp6wulaz3zirkmh4cnz6hhj7id.onion/162/thedixiegroup/LCfyHRcwffrYTblpZvoPO3XDbrYPcNu0wVAsH5p49LSjBfzTmtdXT48azXFlMu7q

http://dark24zz36xm4y2phwe7yvnkkkkhxionhfrwp67awpb3r3bdcneivoqd.onion/W57MRI9C7YZJUZEABBBYRQLSUTG22JZ9MAH0WT1ISHC405KP7Z2UWY3AI3J68DNM

Signatures

  • DarkSide

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

  • Modifies extensions of user files 17 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies data under HKEY_USERS 46 IoCs
  • Modifies registry class 5 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\acer.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\acer.bin.exe"
    1⤵
      PID:1096
    • C:\Users\Admin\AppData\Local\Temp\acer.bin.exe
      "C:\Users\Admin\AppData\Local\Temp\acer.bin.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Users\Admin\AppData\Local\Temp\acer.bin.exe
        "C:\Users\Admin\AppData\Local\Temp\acer.bin.exe"
        2⤵
        • Drops file in System32 directory
        • Sets desktop wallpaper using registry
        • Modifies Control Panel
        • Modifies data under HKEY_USERS
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1160
        • C:\Users\Admin\AppData\Local\Temp\acer.bin.exe
          C:\Users\Admin\AppData\Local\Temp\acer.bin.exe -work worker0 job0-1160
          3⤵
          • Modifies extensions of user files
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          PID:1476
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:744
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\README.949640ab.TXT
      1⤵
      • Opens file in notepad (likely ransom note)
      PID:224

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Impact

    Defacement

    1
    T1491

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\Desktop\README.949640ab.TXT
      MD5

      164aa420be8e0c2bcdef574355edaa32

      SHA1

      4336eaafedfc18a27cdf42bffad63b5a54ea8231

      SHA256

      b326d11dd90c2e4efb0a384981f71c2bd1a6faa0553d6389acb08945b699f73d

      SHA512

      fd1437bc4f45e3f4b5c3d0e7fca9383f45edceb5c8cb603d0b8ee98350a5f2468c2aabdb66f16bdee0bac49afefa4300a093a54ee43b1ff28a541ae612e34d9d

    • memory/224-66-0x000007FEFB6B1000-0x000007FEFB6B3000-memory.dmp
      Filesize

      8KB

    • memory/1096-60-0x0000000075281000-0x0000000075283000-memory.dmp
      Filesize

      8KB

    • memory/1160-62-0x0000000000000000-mapping.dmp
    • memory/1476-64-0x0000000000000000-mapping.dmp