Overview

overview

10

Static

static

3

bce05faf83...0f.exe

windows7-x64

1

bce05faf83...0f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/02/2024, 10:33

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General

  • Target
    bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe
  • Size 629KB
  • Sample240219-mltjhscc9t
  • SHA256 bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f
  • MD5 SHA1 SHA512 SSDEEP
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>cartilage</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: #C6B5C4; } img { display:inline-block; } .bold { font-weight: bold; } .mark { background: #B5CC8E; padding: 2px 5px; } .header { text-align: center; font-size: 30px; line-height: 50px; font-weight: bold; margin-bottom:20px; } .info { background: #e6ecf2; border-left: 10px solid #B58CB2; } .alert { background: #FFE4E4; border-left: 10px solid #FFA07A; } .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.</div> <div class='bold'>If you want to restore them, write us to the e-mail <span class='mark'>[email protected]</span></div> <div class='bold'>Or write us to the Tox: <span class='mark'>78E21CFF7AA85F713C1530AEF2E74E62830BEE77238F4B0A73E5E3251EAD56427BF9F7A1A074</span></div> <div class='bold'>Write this ID in the title of your message <span class='mark'>BC5ED131-3483</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='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
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 (503) 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
  • Suspicious use of SetThreadContext 2 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 62 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\bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe
    "C:\Users\Admin\AppData\Local\Temp\bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1300
    • C:\Users\Admin\AppData\Local\Temp\bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe
      C:\Users\Admin\AppData\Local\Temp\bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe
      2⤵
      • 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:512
      • C:\Users\Admin\AppData\Local\Temp\bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe
        "C:\Users\Admin\AppData\Local\Temp\bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1416
        • C:\Users\Admin\AppData\Local\Temp\bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe
          C:\Users\Admin\AppData\Local\Temp\bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe
          4⤵
            PID:3952
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1032
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:3368
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic shadowcopy delete
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4616
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {default} bootstatuspolicy ignoreallfailures
            4⤵
            • Modifies boot configuration data using bcdedit
            PID:1068
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {default} recoveryenabled no
            4⤵
            • Modifies boot configuration data using bcdedit
            PID:2540
          • C:\Windows\system32\wbadmin.exe
            wbadmin delete catalog -quiet
            4⤵
            • Deletes backup catalog
            PID:3792
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2620
          • C:\Windows\system32\netsh.exe
            netsh advfirewall set currentprofile state off
            4⤵
            • Modifies Windows Firewall
            PID:364
          • C:\Windows\system32\netsh.exe
            netsh firewall set opmode mode=disable
            4⤵
            • Modifies Windows Firewall
            PID:4264
        • 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}
          3⤵
            PID:3008
          • 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}
            3⤵
              PID:5420
            • C:\Windows\SysWOW64\mshta.exe
              "C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
              3⤵
                PID:5400
              • C:\Windows\SysWOW64\mshta.exe
                "C:\Windows\SysWOW64\mshta.exe" "F:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
                3⤵
                  PID:5368
                • C:\Windows\system32\cmd.exe
                  "C:\Windows\system32\cmd.exe"
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:5344
                  • C:\Windows\system32\vssadmin.exe
                    vssadmin delete shadows /all /quiet
                    4⤵
                    • Interacts with shadow copies
                    PID:5624
                  • C:\Windows\System32\Wbem\WMIC.exe
                    wmic shadowcopy delete
                    4⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:5796
                  • C:\Windows\system32\bcdedit.exe
                    bcdedit /set {default} bootstatuspolicy ignoreallfailures
                    4⤵
                    • Modifies boot configuration data using bcdedit
                    PID:5772
                  • C:\Windows\system32\bcdedit.exe
                    bcdedit /set {default} recoveryenabled no
                    4⤵
                    • Modifies boot configuration data using bcdedit
                    PID:5780
                  • C:\Windows\system32\wbadmin.exe
                    wbadmin delete catalog -quiet
                    4⤵
                    • Deletes backup catalog
                    PID:5832
            • C:\Windows\system32\vssvc.exe
              C:\Windows\system32\vssvc.exe
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:628
            • C:\Windows\system32\wbengine.exe
              "C:\Windows\system32\wbengine.exe"
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4268
            • C:\Windows\System32\vdsldr.exe
              C:\Windows\System32\vdsldr.exe -Embedding
              1⤵
                PID:3040
              • C:\Windows\System32\vds.exe
                C:\Windows\System32\vds.exe
                1⤵
                • Checks SCSI registry key(s)
                PID:920

              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

                    AppvIsvSubsystems64.dll.id[BC5ED131-3483].[[email protected]].8base
                    • Path C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems64.dll.id[BC5ED131-3483].[[email protected]].8base
                    • Size 3.2MB
                    • SHA256 3819d3407ac6a116762550156bf2943fa6222ffde56bc39caca317bf5777c744
                    • MD5 SHA1 SHA512 SSDEEP
                    Submit Download

                    bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe.log
                    • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\bce05faf83af5453ac53fce0f7cf2792d35021a949b58a29cc483072672b550f.exe.log
                    • Size 927B
                    • SHA256 264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c
                    • MD5 SHA1 SHA512
                    Submit Download

                    info.hta
                    • Path C:\info.hta
                    • Size 5KB
                    • SHA256 13ff43bef5c3f401f316e240ad435ec696b55ee0654e53cd392609dcb8580c35
                    • MD5 SHA1 SHA512 SSDEEP
                    Submit Download

                    memory/512-247-0x0000000000400000-0x0000000000413000-memory.dmp
                    Download

                    memory/512-233-0x0000000000400000-0x0000000000413000-memory.dmp
                    Download

                    memory/512-12073-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-9547-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-7-0x0000000000400000-0x0000000000413000-memory.dmp
                    Download

                    memory/512-10-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-2281-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-12-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-1471-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-1444-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-1462-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-254-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-453-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-30-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-32-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-253-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-37-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-36-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-53-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-131-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-180-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-178-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-38-0x0000000000400000-0x0000000000413000-memory.dmp
                    Download

                    memory/512-34-0x0000000000400000-0x0000000000413000-memory.dmp
                    Download

                    memory/512-416-0x0000000000400000-0x0000000000413000-memory.dmp
                    Download

                    memory/512-332-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-334-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-368-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-367-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-366-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-270-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-269-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-268-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/512-232-0x0000000000400000-0x0000000000413000-memory.dmp
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                    memory/1300-0-0x0000000000940000-0x00000000009E4000-memory.dmp
                    Download

                    memory/1300-2-0x0000000005470000-0x00000000054B6000-memory.dmp
                    Download

                    memory/1300-4-0x00000000055D0000-0x0000000005604000-memory.dmp
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                    memory/1300-3-0x0000000005460000-0x0000000005470000-memory.dmp
                    Download

                    memory/1300-11-0x0000000074DD0000-0x0000000075580000-memory.dmp
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                    memory/1300-6-0x0000000005C60000-0x0000000006204000-memory.dmp
                    Download

                    memory/1300-5-0x0000000005610000-0x000000000565C000-memory.dmp
                    Download

                    memory/1300-1-0x0000000074DD0000-0x0000000075580000-memory.dmp
                    Download

                    memory/1416-18-0x0000000074E70000-0x0000000075620000-memory.dmp
                    Download

                    memory/1416-15-0x0000000005140000-0x0000000005150000-memory.dmp
                    Download

                    memory/1416-14-0x0000000074E70000-0x0000000075620000-memory.dmp
                    Download

                    memory/3952-20-0x0000000000400000-0x0000000000413000-memory.dmp
                    Download