Overview

overview

10

Static

static

3

f3f25af554...b4.exe

windows10-2004-x64

10

f3f25af554...b4.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/11/2026, 07:49

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General

  • Target
    f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
  • Size 56KB
  • Sample261111-jnt2aavw3j
  • SHA256 f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoverydarksideransomware

Malware Config

Extracted

Path

  • C:\Recovery\README.fa37f1fc.TXT

  • 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

  • Family: DarkSide

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

    ransomwaredarkside
  • Renames multiple (170) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Enumerates connected drives 3 TTPs 3 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies Control Panel 2 IoCs
    defense_evasion
  • Modifies data under HKEY_USERS 32 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
    "C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:4796
  • C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
    "C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3296
    • C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
      "C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe"
      2⤵
      • Enumerates connected drives
      • Drops file in System32 directory
      • Sets desktop wallpaper using registry
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3312
      • C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
        C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -work worker0 job0-3312
        3⤵
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:2664
      • C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
        C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -work worker1 job1-3312
        3⤵
        • Enumerates connected drives
        PID:860
      • C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe
        C:\Users\Admin\AppData\Local\Temp\f3f25af554bedfa4ee2824bb858280282bd87828d446048619dc49fe061741b4.exe -work worker0 job0-3312
        3⤵
        • Enumerates connected drives
        PID:5188
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4328

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        README.fa37f1fc.TXT
        • Path C:\Recovery\README.fa37f1fc.TXT
        • Size 3KB
        • SHA256 b326d11dd90c2e4efb0a384981f71c2bd1a6faa0553d6389acb08945b699f73d
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        BackupInitialize.m4a.fa37f1fc
        • Path C:\Users\Admin\Downloads\BackupInitialize.m4a.fa37f1fc
        • Size 333KB
        • SHA256 8d7221553a04c1e7062f9867b6a5bdb0d2eafe36ecfdbceb1c8c190a25b3cc3f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        BackupUse.wma.fa37f1fc
        • Path C:\Users\Admin\Downloads\BackupUse.wma.fa37f1fc
        • Size 379KB
        • SHA256 aac51cb165ac4100ea96f6c716a625604ffcae5da83d3c607a3d4171acaa41e2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        README.fa37f1fc.TXT
        • Path C:\Users\Admin\Downloads\README.fa37f1fc.TXT
        • Size 3KB
        • SHA256 b326d11dd90c2e4efb0a384981f71c2bd1a6faa0553d6389acb08945b699f73d
        • MD5 SHA1 SHA512 TLSH
        Submit Download