Overview

overview

10

Static

static

3

ea54ac4b57...18.exe

windows7-x64

10

ea54ac4b57...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2024 01:22

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General

  • Target

    ea54ac4b573864a58e912bc1296e6b3d_JaffaCakes118.exe

  • Size

    335KB

  • MD5

    ea54ac4b573864a58e912bc1296e6b3d

  • SHA1

    cb0b48ec0e1c0da1b46e35c7fc7e498b6439a9ca

  • SHA256

    82cc54a2d2620e98de7729569627dc794b4d53096f74e5b6fae2fdb227d63d1d

  • SHA512

    712e6c66cd158ba9b112f3f00e612ea921b94c664f07a3124b45517d24a7eb6b75f9d0f4c3bc9f8c38af810f1659cefeec6af4dd4bcd3feba512848ed369e3ab

  • SSDEEP

    6144:TFivQEpm5xeolcek45QUw4wQOe6Xs6TdNnWCrmLTwqYXHNQkAyktjq25B+lr:T8vQEpM/m3Re6c6RJWmmL8XHakAhZY

Score
10/10
dharmacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

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 4FC18F34 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
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (520) 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.

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • 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
  • 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 24 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\ea54ac4b573864a58e912bc1296e6b3d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ea54ac4b573864a58e912bc1296e6b3d_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2952
    • C:\Users\Admin\AppData\Local\Temp\ea54ac4b573864a58e912bc1296e6b3d_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\ea54ac4b573864a58e912bc1296e6b3d_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
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5032
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3168
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          4⤵
            PID:4948
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:6408
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:9944
          • C:\Windows\system32\mode.com
            mode con cp select=1251
            4⤵
              PID:7088
            • C:\Windows\system32\vssadmin.exe
              vssadmin delete shadows /all /quiet
              4⤵
              • Interacts with shadow copies
              PID:6432
          • 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:8396
            • C:\Windows\System32\mshta.exe
              "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
              3⤵
                PID:5964
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:6628

          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

          Privilege Escalation

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Defense Evasion

          Direct Volume Access

          1
          T1006

          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

          2
          T1490

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems64.dll.id-4FC18F34.[[email protected]].combo
            Filesize

            3.2MB

            MD5

            64d988360aced7f670f82352376d1bf5

            SHA1

            fd04a35cda2fb904f8831b1a489d922dabb90e3a

            SHA256

            7d44b6ca5002da56fae8ba0fc69e32524ce2c9de30c85bf46ee1afc8c2e32147

            SHA512

            cc411e800dfb78b2c73ddbd0c34b12814862e31980ad9fabdc02c5f69b84f07b5b92abd36a3cafafbd69a045dcdfa3f8b9f898d379e098cb3adcdf468057ddef

            Download Submit

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

            13KB

            MD5

            e8ebf21d6b28ffe1d3c11867e1242052

            SHA1

            a80d257f7048fe20a4423dadc131a284aec13682

            SHA256

            cd53835b24d8909a5604891eef229b6703415d3e410a071226d5c61b64febfb9

            SHA512

            f6f47b7d87cd7e8ec3552f1c71ad7e1a48d8db235e620f0b990b6517beb30842abf19e70e71b0d38c203c261d66c7aad15927b4846654b9865ecc8ce02efd7ca

            Download Submit

          • memory/2952-0-0x0000000000FD0000-0x000000000103E200-memory.dmp

            Filesize

            440KB

            Download

          • memory/2952-1-0x0000000000350000-0x0000000000353000-memory.dmp

            Filesize

            12KB

            Download

          • memory/2952-8-0x0000000000350000-0x0000000000353000-memory.dmp

            Filesize

            12KB

            Download

          • memory/2952-7-0x0000000000FD0000-0x000000000103E200-memory.dmp

            Filesize

            440KB

            Download

          • memory/5032-2-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

            Download

          • memory/5032-6-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

            Download

          • memory/5032-4-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

            Download

          • memory/5032-12-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

            Download

          • memory/5032-18-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

            Download