Overview

overview

10

Static

static

3

18637c2780...ff.exe

windows7-x64

10

18637c2780...ff.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-11-2024 01:38

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General

  • Target

    18637c278083785d8c5cafdcbf819407182fc554c90c75d02bd10d6a9c6feaff.exe

  • Size

    71KB

  • MD5

    9ca39dbbb8835a2fce09d67c222ec394

  • SHA1

    936e5e88e0b242e3ce5d165fdaefed9608485df5

  • SHA256

    18637c278083785d8c5cafdcbf819407182fc554c90c75d02bd10d6a9c6feaff

  • SHA512

    5b159785f30547b35ce6d8fe4c6c4eff74043e141fb023dcdbe76d6cb75dc3830f6bbf919aaa8837ca92da576b6c52bab96021205886ae38fb6d8f0459cf4f0e

  • SSDEEP

    1536:e/4KVGCjxJPtiigF0tKh/eRBucQltP40PrqdKO7h/Ms:eJU+xJPtiZ/eRBGtJPrqcO7hk

Score
10/10
phoboscredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceprivilege_escalationransomwarespywarestealer

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>phobos</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'>D2A5D5EC-1030</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 class='bold'>If there is no response from our mail, you can install the Jabber client and write to us in support of <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 decryption 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 10Mb (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> <div class='footer'> <img src='data:image/png;base64,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' /> </div> </body> </html>
Emails

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

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

class='mark'>[email protected]</span>
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
  • Phobos family
    phobos
  • 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
  • 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.

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Drops startup file 3 IoCs
  • Reads user/profile data of web browsers 3 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

    discovery
  • Interacts with shadow copies 3 TTPs 2 IoCs

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

    ransomware
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 38 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\18637c278083785d8c5cafdcbf819407182fc554c90c75d02bd10d6a9c6feaff.exe
    "C:\Users\Admin\AppData\Local\Temp\18637c278083785d8c5cafdcbf819407182fc554c90c75d02bd10d6a9c6feaff.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
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4276
    • C:\Users\Admin\AppData\Local\Temp\18637c278083785d8c5cafdcbf819407182fc554c90c75d02bd10d6a9c6feaff.exe
      "C:\Users\Admin\AppData\Local\Temp\18637c278083785d8c5cafdcbf819407182fc554c90c75d02bd10d6a9c6feaff.exe"
      2⤵
        PID:3748
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4624
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          3⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:3800
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          3⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:1408
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1608
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2472
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2708
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:4112
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:4760
      • 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⤵
        • System Location Discovery: System Language Discovery
        PID:5364
      • 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⤵
        • System Location Discovery: System Language Discovery
        PID:6900
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
        2⤵
        • System Location Discovery: System Language Discovery
        PID:4004
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "F:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
        2⤵
        • System Location Discovery: System Language Discovery
        PID:6480
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:6724
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:6376
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3188
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:1588
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          3⤵
          • Modifies boot configuration data using bcdedit
          PID:3436
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2300

    Network

    MITRE ATT&CK Enterprise v15

    Reconnaissance

    Resource Development

    Initial Access

    Execution

    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

    Event Triggered Execution

    1
    T1546

    Netsh Helper DLL

    1
    T1546.007

    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

    Event Triggered Execution

    1
    T1546

    Netsh Helper DLL

    1
    T1546.007

    Defense Evasion

    Direct Volume Access

    1
    T1006

    Impair Defenses

    1
    T1562

    Disable or Modify System Firewall

    1
    T1562.004

    Indicator Removal

    2
    T1070

    File Deletion

    2
    T1070.004

    Modify Registry

    1
    T1112

    Credential Access

    Credentials from Password Stores

    2
    T1555

    Credentials from Web Browsers

    1
    T1555.003

    Windows Credential Manager

    1
    T1555.004

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Browser Information Discovery

    1
    T1217

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    System Location Discovery

    1
    T1614

    System Language Discovery

    1
    T1614.001

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Command and Control

    Exfiltration

    Impact

    Inhibit System Recovery

    3
    T1490

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems64.dll.id[D2A5D5EC-1030].[[email protected]].phobos
      Filesize

      3.2MB

      MD5

      de07a38104347d30179302b709c59eba

      SHA1

      32de4b151d4990e148d19b411f8220b30276fb72

      SHA256

      86799c22bc38dc508626fa394f0069a25c89327fca0323662920c763c6411116

      SHA512

      31b03f88ec059ecd2186c8d7e10be5499dc964e622fbef4ff7c6980b82c43dc4b3bb406fdac64cd263e1a4745dbb288e56b436a3168cfdf7b2c4928490989869

      Download Submit

    • C:\info.hta
      Filesize

      8KB

      MD5

      dfe094befbdbe6cbb6f77bea9f6f99c7

      SHA1

      4dca2edf31571f729816ad6698f6c6c7b7cb8683

      SHA256

      1cff75d2d8066696dd7104760137d7417ea9cc9fe52525e400b90f922fd54351

      SHA512

      d18d05e0593d7eb2a6563dd7a31068db5abea2b0f34657644f9657b2769d0dfcb7f8651c69449f7020bad3ea1d0026d66da241c06fc9686ec6a4d754113c5da4

      Download Submit