Overview

overview

10

Static

static

3

159b55f019...37.exe

windows7-x64

10

159b55f019...37.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-03-2024 10:36

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General

  • Target

    159b55f019e153c1023e2f0f605bb46f1e7646332e0be96f960521d4c9144d37.exe

  • Size

    66KB

  • MD5

    d703a74ada6a4757dee00306b08af142

  • SHA1

    42df3307437c405fdee24c76ff0750d1618a7800

  • SHA256

    159b55f019e153c1023e2f0f605bb46f1e7646332e0be96f960521d4c9144d37

  • SHA512

    43b2653b6e8592837f19aa4fe74e3297dff89b8dc5919b37d7f7d79a90ee8c93299ccfc06bd6183049e38adb08665941af740bb3132e6a08dd6887c1f8d23c8f

  • SSDEEP

    1536:TNeRBl5PT/rx1mzwRMSTdLpJn8qEQBoimA0Q0GTE6VfEW:TQRrmzwR5J1oiBH0CE+sW

Score
10/10
phobosevasionpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\info.hta

Ransom Note
<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01//EN' 'http://www.w3.org/TR/html4/strict.dtd'> <html> <head> <meta charset='windows-1251'> <title>encrypted</title> <HTA:APPLICATION ICON='msiexec.exe' SINGLEINSTANCE='yes' SysMenu="no"> <script language='JScript'> window.moveTo(50, 50); window.resizeTo(screen.width - 100, screen.height - 100); </script> <style type='text/css'> body { font: 15px Tahoma, sans-serif; margin: 10px; line-height: 25px; background: #EDEDED; } img { display:inline-block; } .bold { font-weight: bold; } .mark { background: #D0D0E8; padding: 2px 5px; } .header { text-align: center; font-size: 30px; line-height: 50px; font-weight: bold; margin-bottom:20px; } .info { background: #D0D0E8; border-left: 10px solid #00008B; } .alert { background: #FFE4E4; border-left: 10px solid #FF0000; } .private { border: 1px dashed #000; background: #FFFFEF; } .note { height: auto; padding-bottom: 1px; margin: 15px 0; } .note .title { font-weight: bold; text-indent: 10px; height: 30px; line-height: 30px; padding-top: 10px; } .note .mark { background: #A2A2B5; } .note ul { margin-top: 0; } .note pre { margin-left: 15px; line-height: 13px; font-size: 13px; } .footer { position:fixed; bottom:0; right:0; text-align: right; } .title { margin-left: 0; } .title.sub { margin-left:30px; dispaly:inline-block; } </style> </head> <body> <div class='header'> <img src='data:image/png;base64,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'> <div>Dear Management</div> </div> <div class='bold'>&nbsp;&nbsp;&nbsp;If you are reading this message, it means that:<br><ul> - your network infrastructure has been compromised,<br> - critical data was leaked,<br> - files are encrypted</span></div></ul> <div class='bold'>&nbsp;&nbsp;&nbsp;The best and only thing you can do is to contact us to settle the matter before any losses occurs.</span></div> <div class='bold'>&nbsp;&nbsp;&nbsp;Onion site: <span class='mark'><a href='http://basemmnnqwxevlymli5bs36o5ynti55xojzvn246spahniugwkff2pad.onion/'>http://basemmnnqwxevlymli5bs36o5ynti55xojzvn246spahniugwkff2pad.onion/</a></span></div> <div class='bold'>&nbsp;&nbsp;&nbsp;Telegram channel: <span class='mark'><a href='https://t.me/eightbase'>https://t.me/eightbase</a></span></div> </div> <div class='note info'> <div class='title'>1. THE FOLLOWING IS STRICTLY FORBIDDEN</div> <div class='title.sub'>&nbsp;&nbsp;&nbsp;1.1 EDITING FILES ON HDD.</div> <ul>Renaming, copying or moving any files could DAMAGE the cipher and decryption will be impossible.</ul> <div class='title.sub'>&nbsp;&nbsp;&nbsp;1.2 USING THIRD-PARTY SOFTWARE.</div> <ul>Trying to recover with any software can also break the cipher and file recovery will become a problem.</ul> <div class='title.sub'>&nbsp;&nbsp;&nbsp;1.3 SHUTDOWN OR RESTART THE PC.</div> <ul>Boot and recovery errors can also damage the cipher. Sorry about that, but doing so is entirely at your own risk.</ul> </div> <div class='note info'> <div class='title'>2. EXPLANATION OF THE SITUATION</div> <div class='title.sub'>&nbsp;&nbsp;&nbsp;2.1 HOW DID THIS HAPPEN</div> <ul>The security of your IT perimeter has been compromised (it's not perfect at all). We encrypted your workstations and servers to make the fact of the intrusion visible and to prevent you from hiding critical data leaks. We spent a lot of time researching and finding out the most important directories of your business, your weak points. We have already downloaded a huge amount of critical data and analyzed it. Now its fate is up to you, it will either be deleted or sold, or shared with the media.</ul> <div class='title.sub'>&nbsp;&nbsp;&nbsp;2.2 VALUABLE DATA WE USUALLY STEAL:</div> <ul>- Databases, legal documents, personal information.<br> - Audit reports.<br> - Audit SQL database.<br> - Any financial documents (Statements, invoices, accounting, transfers etc.).<br> - Work files and corporate correspondence.<br> - Any backups.<br> - Confidential documents.</ul> <div class='title.sub'>&nbsp;&nbsp;&nbsp;2.3 TO DO LIST (best practies)</div> <ul>- Contact us as soon as possible. - Contact us only in our live chat, otherwise you can run into scammers. - Purchase our decryption tool and decrypt your files. There is no other way to do this. - Realize that dealing with us is the shortest way to success and secrecy. - Give up the idea of using decryption help programs, otherwise you will destroy the system permanently. - Avoid any third-party negotiators and recovery groups. They can become the source of leaks.</ul> </div> <div class='note info'> <div class='title'>3. POSSIBLE DECISIONS</div> <div class='title.sub'>&nbsp;&nbsp;&nbsp;3.1 NOT MAKING THE DEAL</div> <ul>- After 4 days starting tomorrow your leaked data will be Disclosed or sold.<br> - We will also send the data to all interested supervisory organizations and the media.<br> - Decryption key will be deleted permanently and recovery will be impossible.<br> - Losses from the situation can be measured based on your annual budget.</ul> <div class='title.sub'>&nbsp;&nbsp;&nbsp;3.2 MAKING THE WIN-WIN DEAL</div> <ul>- Databases, legal documents, personal information.<br> - You will get the only working Decryption Tool and the how-to-use Manual.<br> - You will get our guarantees (with log provided) of non-recovarable deletion of all your leaked data.<br> - You will get our guarantees of secrecy and removal of all traces related to the deal in the Internet.<br> - You will get our security report on how to fix your security breaches.</ul> </div> </div> <div class='note info'> <div class='title'>4. EVIDENCE OF THE LEAKAGE</div> <div class='bold'>&nbsp;&nbsp;&nbsp;In our contact form or mail:</span></div> <div class='bold'>&nbsp;&nbsp;&nbsp;Onion site: <span class='mark'><a href='http://basemmnnqwxevlymli5bs36o5ynti55xojzvn246spahniugwkff2pad.onion/contact'>http://basemmnnqwxevlymli5bs36o5ynti55xojzvn246spahniugwkff2pad.onion/contact</a></span></div> <ul> <li>Write us to the mails: <span class='mark'>[email protected]</span></li> <li>Write this ID in the title of your message <span class='mark'>FF25AF51-3483</span></li> </ul> </div> </div> <div class='note info'> <div class='title'>5. HOW TO CONTACT US</div> <ul> 5.1 Download and install TOR Browser <a href='https://torproject.org'>https://torproject.org</a><br> 5.2 Go to our contact form website at <a href='http://basemmnnqwxevlymli5bs36o5ynti55xojzvn246spahniugwkff2pad.onion/contact'>http://basemmnnqwxevlymli5bs36o5ynti55xojzvn246spahniugwkff2pad.onion/contact</a><br> 5.3 You can request sample files chat to review leaked data samples.<br> 5.4 In case TOR Browser is restricted in your area use VPN services.<br> 5.5 All leaked Data samples will be Disclosed in 4 Days if you remain silent.<br> 5.6 Your Decryption keys will be permanently destroyed at the moment the leaked Data is Disclosed. </ul> </div> <div class='note alert'> <div class='title'>6. RESPONSIBILITY</div> <div class='title.sub'>&nbsp;&nbsp;&nbsp;6.1 Breaking critical points of this offer will cause:</div> <ul> <li>Deletion of your decryption keys.</li> <li>Immediate sale or complete Disclosure of your leaked data.</li> <li>Notification of government supervision agencies, your competitors and clients.</li> </ul> </div> </body> </html>
Emails

class='mark'>[email protected]</span></li>

URLs

http://www.w3.org/TR/html4/strict.dtd'>

Signatures

  • Phobos

    Phobos ransomware appeared at the beginning of 2019.

    ransomwarephobos
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
    ransomwareevasion
  • Renames multiple (624) files with added filename extension

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

    ransomware
  • Deletes backup catalog 3 TTPs 2 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Modifies Windows Firewall 2 TTPs 2 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Interacts with shadow copies 2 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • 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\159b55f019e153c1023e2f0f605bb46f1e7646332e0be96f960521d4c9144d37.exe
    "C:\Users\Admin\AppData\Local\Temp\159b55f019e153c1023e2f0f605bb46f1e7646332e0be96f960521d4c9144d37.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3320
    • C:\Users\Admin\AppData\Local\Temp\159b55f019e153c1023e2f0f605bb46f1e7646332e0be96f960521d4c9144d37.exe
      "C:\Users\Admin\AppData\Local\Temp\159b55f019e153c1023e2f0f605bb46f1e7646332e0be96f960521d4c9144d37.exe"
      2⤵
        PID:3656
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2924
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3000
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4924
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:3748
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:3920
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:4456
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:220
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:4612
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:4792
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
        2⤵
          PID:5464
        • C:\Windows\SysWOW64\mshta.exe
          "C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
          2⤵
            PID:5468
          • C:\Windows\SysWOW64\mshta.exe
            "C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
            2⤵
              PID:4108
            • C:\Windows\SysWOW64\mshta.exe
              "C:\Windows\SysWOW64\mshta.exe" "F:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
              2⤵
                PID:5856
              • C:\Windows\system32\cmd.exe
                "C:\Windows\system32\cmd.exe"
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:5364
                • C:\Windows\system32\vssadmin.exe
                  vssadmin delete shadows /all /quiet
                  3⤵
                  • Interacts with shadow copies
                  PID:5536
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic shadowcopy delete
                  3⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:5372
                • C:\Windows\system32\bcdedit.exe
                  bcdedit /set {default} bootstatuspolicy ignoreallfailures
                  3⤵
                  • Modifies boot configuration data using bcdedit
                  PID:5484
                • C:\Windows\system32\bcdedit.exe
                  bcdedit /set {default} recoveryenabled no
                  3⤵
                  • Modifies boot configuration data using bcdedit
                  PID:5488
                • C:\Windows\system32\wbadmin.exe
                  wbadmin delete catalog -quiet
                  3⤵
                  • Deletes backup catalog
                  PID:5500
            • C:\Windows\system32\vssvc.exe
              C:\Windows\system32\vssvc.exe
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:3988
            • C:\Windows\system32\wbengine.exe
              "C:\Windows\system32\wbengine.exe"
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2900
            • C:\Windows\System32\vdsldr.exe
              C:\Windows\System32\vdsldr.exe -Embedding
              1⤵
                PID:1820
              • C:\Windows\System32\vds.exe
                C:\Windows\System32\vds.exe
                1⤵
                • Checks SCSI registry key(s)
                PID:4432
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4116 --field-trial-handle=2268,i,4334050275411101233,11484630688883830558,262144 --variations-seed-version /prefetch:8
                1⤵
                  PID:624

                Network

                MITRE ATT&CK Enterprise v15

                Reconnaissance

                Resource Development

                Initial Access

                Execution

                Command and Scripting Interpreter

                1
                T1059

                Persistence

                Boot or Logon Autostart Execution

                1
                T1547

                Registry Run Keys / Startup Folder

                1
                T1547.001

                Create or Modify System Process

                1
                T1543

                Windows Service

                1
                T1543.003

                Privilege Escalation

                Boot or Logon Autostart Execution

                1
                T1547

                Registry Run Keys / Startup Folder

                1
                T1547.001

                Create or Modify System Process

                1
                T1543

                Windows Service

                1
                T1543.003

                Defense Evasion

                Impair Defenses

                1
                T1562

                Disable or Modify System Firewall

                1
                T1562.004

                Indicator Removal

                3
                T1070

                File Deletion

                3
                T1070.004

                Modify Registry

                1
                T1112

                Credential Access

                Unsecured Credentials

                1
                T1552

                Credentials In Files

                1
                T1552.001

                Discovery

                Peripheral Device Discovery

                1
                T1120

                Query Registry

                3
                T1012

                System Information Discovery

                3
                T1082

                Lateral Movement

                Collection

                Data from Local System

                1
                T1005

                Command and Control

                Exfiltration

                Impact

                Inhibit System Recovery

                4
                T1490

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R64.dll.id[FF25AF51-3483].[[email protected]].8base
                  Filesize

                  3.6MB

                  MD5

                  60e8ec1dac7b33f696ff26811cdd6232

                  SHA1

                  260e94d8dcb1f619266fc56ab409a3b089892e91

                  SHA256

                  c2c93ed9f4fc82fde4e789c00c0c54ba8afcc721c3aaa3b86e4f6d5fabdfaad3

                  SHA512

                  21aab2bc06819ba1fda1d13145af11ab75dbcbf818c8e0bf7d17732b12f49b453454a9572def7cdf94b5c4fabaabccf2f47524814a4df30e766dfee7e89991dc

                  Download Submit

                • C:\info.hta
                  Filesize

                  9KB

                  MD5

                  502fd73775487958d1f5e314d01a7cf3

                  SHA1

                  b13793a90d1ca188661f03e7980eb6f91f37a31a

                  SHA256

                  908922c7c86a10c8121f7600f44b6ded977656edc76b8ad0994d7907bd949e5c

                  SHA512

                  1adfcbeb75f67db2263c7f9ef887af0f773d432e875c611cf1dc7667617ad87db56c4a51f2462cc7852cb1b640db7d50b13253d11d3fc584d8eb5a7fe875eb6e

                  Download Submit