Overview

overview

10

Static

static

3

2024-05-06...os.exe

windows7-x64

10

2024-05-06...os.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 00:06

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General

  • Target

    2024-05-06_b9901d7f5cba3befab569d78accba5dc_phobos.exe

  • Size

    56KB

  • MD5

    b9901d7f5cba3befab569d78accba5dc

  • SHA1

    2ff292445144613ffcc9f9fbc9506278db730fb7

  • SHA256

    ed9a2b4e0a7e81b8b671a797dc499d8eb112bf42500551607a5d454056e1cdd2

  • SHA512

    2d222f1852b3ec8269256d46a61012d86afce22cf55261207ab7cd52ffb5ddf6b404a321c68341a90d8f3d6e572797f440f2341fd48ff2acb1f9ba058170c501

  • SSDEEP

    1536:oNeRBl5PT/rx1mzwRMSTdLpJ5+z5ZPDEW6:oQRrmzwR5JMz5ZP

Score
10/10
phobosdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

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 jabber <span class='mark'>[email protected]</span></div> <div class='bold'>Write this ID in the title of your message <span class='mark'>8F45EA37-3540</span></div> <div class='bold'>In case of no answer in 24 hours write us to this jabber:<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 3 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='title'>Jabber client installation instructions:</div> <div class='note info'> <ul> <li>Download the jabber (Pidgin) client from https://pidgin.im/download/windows/</li> <li>After installation, the Pidgin client will prompt you to create a new account.</li> <li>Click "Add"</li><li>In the "Protocol" field, select XMPP</li> <li>In "Username" - come up with any name</li> <li>In the field "domain" - enter any jabber-server, there are a lot of them, for example - exploit.im</li> <li>Create a password</li><li>At the bottom, put a tick "Create account"</li> <li>Click add</li> <li>If you selected "domain" - exploit.im, then a new window should appear in which you will need to re-enter your data:</li> <ul> <li>User</li> <li>password</li> <li>You will need to follow the link to the captcha (there you will see the characters that you need to enter in the field below)</li> </ul> <li>If you don't understand our Pidgin client installation instructions, you can find many installation tutorials on youtube - <a href = "https://www.youtube.com/results?search_query=pidgin+jabber+install">https://www.youtube.com/results?search_query=pidgin+jabber+install</a></li> </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'>

https://pidgin.im/download/windows/</li>

Signatures

  • Phobos

    Phobos ransomware appeared at the beginning of 2019.

    ransomwarephobos
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
    ransomwareevasion
  • Renames multiple (520) 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\2024-05-06_b9901d7f5cba3befab569d78accba5dc_phobos.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-06_b9901d7f5cba3befab569d78accba5dc_phobos.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:1492
    • C:\Users\Admin\AppData\Local\Temp\2024-05-06_b9901d7f5cba3befab569d78accba5dc_phobos.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-05-06_b9901d7f5cba3befab569d78accba5dc_phobos.exe"
      2⤵
        PID:2196
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3436
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          PID:2284
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          PID:1616
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3432
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2812
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1072
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:4520
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:2168
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          3⤵
          • Deletes backup catalog
          PID:4516
      • 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:4380
        • 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:1444
          • 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:4140
            • 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:1824
              • C:\Windows\system32\cmd.exe
                "C:\Windows\system32\cmd.exe"
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:1080
                • C:\Windows\system32\vssadmin.exe
                  vssadmin delete shadows /all /quiet
                  3⤵
                  • Interacts with shadow copies
                  PID:756
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic shadowcopy delete
                  3⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1248
                • C:\Windows\system32\bcdedit.exe
                  bcdedit /set {default} bootstatuspolicy ignoreallfailures
                  3⤵
                  • Modifies boot configuration data using bcdedit
                  PID:3180
                • C:\Windows\system32\bcdedit.exe
                  bcdedit /set {default} recoveryenabled no
                  3⤵
                  • Modifies boot configuration data using bcdedit
                  PID:4656
                • C:\Windows\system32\wbadmin.exe
                  wbadmin delete catalog -quiet
                  3⤵
                  • Deletes backup catalog
                  PID:4308
            • C:\Windows\system32\vssvc.exe
              C:\Windows\system32\vssvc.exe
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1300
            • C:\Windows\system32\wbengine.exe
              "C:\Windows\system32\wbengine.exe"
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4944
            • C:\Windows\System32\vdsldr.exe
              C:\Windows\System32\vdsldr.exe -Embedding
              1⤵
                PID:3632
              • C:\Windows\System32\vds.exe
                C:\Windows\System32\vds.exe
                1⤵
                • Checks SCSI registry key(s)
                PID:1428

              Network

              MITRE ATT&CK Enterprise v15

              Reconnaissance

              Resource Development

              Initial Access

              Execution

              Command and Scripting Interpreter

              1
              T1059

              Windows Management Instrumentation

              1
              T1047

              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

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              Downloads

              • C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R32.dll.id[8F45EA37-3540].[[email protected]].faust
                Filesize

                2.7MB

                MD5

                2f95f2b0c3af85ca0ab6a554f388ed60

                SHA1

                da8b578d5c66eadecd839422b4f66c8a840c8b0a

                SHA256

                c8a60fd2e85206a5bad74b2a4245e07bd4f26ec89fd21e44d8ba0777696e3000

                SHA512

                1b873a22870703457812caddc518260d3c50a7be2c80ee73fa8e498980e295a0ab88d91fd4a1d9ef2b7c87a2a2f37db755d5a066c1294b69c5f98afb098ceb6f

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              • C:\info.hta
                Filesize

                6KB

                MD5

                81e15f4bfaba8522336d77f33ede096d

                SHA1

                453ed863618b453d7e77607a2717bfb7264c1fe8

                SHA256

                99ace72b7388c7b5fd88761da076c01a041482525b83166107484c71aadfe3a1

                SHA512

                db756bcf77b472462d24225aefe72bfde7aab06ffe5a90258ad34fb5ce2f5a21260697096352c9b31fa93f06d3941869404b031ce649b2e0b6776f04fd196f25

                Download Submit