Overview

overview

10

Static

static

7

7747fb3574...18.exe

windows7-x64

7

7747fb3574...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-05-2024 00:16

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    7747fb3574fddef7bf04c2a0cb8500d0_JaffaCakes118.exe

  • Size

    264KB

  • MD5

    7747fb3574fddef7bf04c2a0cb8500d0

  • SHA1

    92be0988fa9c5d634b38847b1d2199e54ca2fe4f

  • SHA256

    d968fc01ce5e604515a27226c938fbe09256db97da206e8e74c8a06ffd1e4fa4

  • SHA512

    a5c6c9458cfc407c1c8a18298c332c3c41f50972c20e59ace5ee922a8e6d3a5661bfeccbaa7b10bc4b6250f4a5808bc281a2bf8a5dac0134533e548c905e7ca2

  • SSDEEP

    6144:Md8oCITmlIXXeF+omLw98TstAYAyxm+UU8ez9Y:E/PTmqXy+FL9TsfxFUU8ez9Y

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealerupx

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\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 2E038AB6 In case of no answer in 24 hours write us to theese e-mails: [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 decryption tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (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

  • Dharma

    Dharma is a ransomware that uses security software installation to hide malicious activities.

    ransomwaredharma
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (522) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 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 8 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 20 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\7747fb3574fddef7bf04c2a0cb8500d0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7747fb3574fddef7bf04c2a0cb8500d0_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4200
    • C:\Users\Admin\AppData\Local\Temp\7747fb3574fddef7bf04c2a0cb8500d0_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\7747fb3574fddef7bf04c2a0cb8500d0_JaffaCakes118.exe
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4264
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4564
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          4⤵
            PID:7176
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:5292
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:8372
          • C:\Windows\system32\mode.com
            mode con cp select=1251
            4⤵
              PID:6872
            • C:\Windows\system32\vssadmin.exe
              vssadmin delete shadows /all /quiet
              4⤵
              • Interacts with shadow copies
              PID:7792
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            3⤵
              PID:7004
            • C:\Windows\System32\mshta.exe
              "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
              3⤵
                PID:8016
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:6112

          Network

          MITRE ATT&CK Matrix ATT&CK v13

          Initial Access

          Execution

          Windows Management Instrumentation

          1
          T1047

          Persistence

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Privilege Escalation

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Defense Evasion

          Indicator Removal

          2
          T1070

          File Deletion

          2
          T1070.004

          Modify Registry

          1
          T1112

          Credential Access

          Unsecured Credentials

          1
          T1552

          Credentials In Files

          1
          T1552.001

          Discovery

          Query Registry

          2
          T1012

          System Information Discovery

          3
          T1082

          Peripheral Device Discovery

          1
          T1120

          Lateral Movement

          Collection

          Data from Local System

          1
          T1005

          Exfiltration

          Command and Control

          Impact

          Inhibit System Recovery

          2
          T1490

          Resource Development

          Reconnaissance

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-2E038AB6.[[email protected]].bot
            Filesize

            2.7MB

            MD5

            33a9a620bbabd702345ce9be43761a45

            SHA1

            8cff3206d76f5041589f004c71c26bc1a6f9532f

            SHA256

            230c5327b85edf3dae18f3f30020bb773f9653143c3842a41d0267d39f135e51

            SHA512

            e2f393e03e58c94247488b58ac86b4ed824be8d96a5d43cf53f9dfa7e0d0b9699151a8ed2b259208f71dcd5acd3c3eedd5efa5c795bc08d1b8a4aee26754b926

            Download Submit
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
            Filesize

            13KB

            MD5

            e132d9bbcf73af06debc14d32240d41e

            SHA1

            5fd3305fcd1757095e9ed393e1f67f039da19979

            SHA256

            3c48f073bdcccc5030de3dbb291facf1bcaabc45c250ddc64190ebff88104fe8

            SHA512

            6a2f9d8cf41a32ed5a7c882e4f08a78265c1327d994516c675e8eef7c8c6733d33a286919f4bc422d74c2977f3adf9f8d6192cf3d4e18b3e78948920988b54f4

            Download Submit
          • memory/4200-0-0x0000000000400000-0x0000000000468000-memory.dmp
            Filesize

            416KB

            Download
          • memory/4200-1-0x0000000000400000-0x0000000000468000-memory.dmp
            Filesize

            416KB

            Download
          • memory/4200-2-0x0000000000400000-0x0000000000468000-memory.dmp
            Filesize

            416KB

            Download
          • memory/4200-3-0x0000000000400000-0x0000000000468000-memory.dmp
            Filesize

            416KB

            Download
          • memory/4200-4-0x00000000036E0000-0x0000000003714000-memory.dmp
            Filesize

            208KB

            Download
          • memory/4200-9454-0x0000000000400000-0x0000000000468000-memory.dmp
            Filesize

            416KB

            Download
          • memory/4200-16359-0x00000000036E0000-0x0000000003714000-memory.dmp
            Filesize

            208KB

            Download
          • memory/4264-19967-0x0000000000400000-0x0000000000419000-memory.dmp
            Filesize

            100KB

            Download