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
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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:\ProgramData\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 6219851C 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 (310) files with added filename extension

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

    ransomware
  • 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
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 41 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:2224
    • C:\Users\Admin\AppData\Local\Temp\ea54ac4b573864a58e912bc1296e6b3d_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\ea54ac4b573864a58e912bc1296e6b3d_JaffaCakes118.exe"
      2⤵
        PID:2236
      • C:\Users\Admin\AppData\Local\Temp\ea54ac4b573864a58e912bc1296e6b3d_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\ea54ac4b573864a58e912bc1296e6b3d_JaffaCakes118.exe"
        2⤵
        • 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:2684
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2400
          • C:\Windows\system32\mode.com
            mode con cp select=1251
            4⤵
              PID:2860
            • C:\Windows\system32\vssadmin.exe
              vssadmin delete shadows /all /quiet
              4⤵
              • Interacts with shadow copies
              PID:1516
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1096
            • C:\Windows\system32\mode.com
              mode con cp select=1251
              4⤵
                PID:1300
              • C:\Windows\system32\vssadmin.exe
                vssadmin delete shadows /all /quiet
                4⤵
                • Interacts with shadow copies
                PID:896
            • C:\Windows\System32\mshta.exe
              "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
              3⤵
              • Modifies Internet Explorer settings
              PID:5088
            • C:\Windows\System32\mshta.exe
              "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
              3⤵
              • Modifies Internet Explorer settings
              PID:3188
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2988

        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

        2
        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

        System Information Discovery

        1
        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:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\osetup.dll.id-6219851C.[[email protected]].combo
          Filesize

          6.3MB

          MD5

          3367f2d195f5e365b4f87f002604bbbc

          SHA1

          0381ae3a29f293dcf2c6c279765c4e35cc6e0317

          SHA256

          9a0cfb188b40ed4e45c4d1d2c21fdbbc0a09aee4508ece1cf7c2aa1c11d0f0ff

          SHA512

          c7cc8771fdfa5aeb827a1dce73ac22e23ff996768f985d983755cf6f745f8dc4b140bde8e51c1c4326487d54f9558ff820c3d9d3ec2f53c0dd7639b825c9a5fc

          Download Submit

        • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
          Filesize

          13KB

          MD5

          b743a0db056aec6fe162079957d03632

          SHA1

          dcf4f48864b4629ab11dcb5fe8e8b61233ce303d

          SHA256

          48951890f19ec76ec9a251040c0956fb17f356fa608b970e76b23986f5e6d307

          SHA512

          5aec0d62af0399c853fac81310087fed4845384fa0b9a29e9ea8458d72f7934bf26e36e3b2a3993473831dfc0840cf3d8262354e23c6a7987bf6e2ea5397ca86

          Download Submit

        • memory/2224-1-0x0000000000020000-0x0000000000023000-memory.dmp

          Filesize

          12KB

          Download

        • memory/2224-0-0x0000000000970000-0x00000000009DE200-memory.dmp

          Filesize

          440KB

          Download

        • memory/2224-16-0x0000000000800000-0x000000000086F000-memory.dmp

          Filesize

          444KB

          Download

        • memory/2224-15-0x0000000000970000-0x00000000009DE200-memory.dmp

          Filesize

          440KB

          Download

        • memory/2236-2-0x0000000000970000-0x00000000009DE200-memory.dmp

          Filesize

          440KB

          Download

        • memory/2684-23-0x0000000000400000-0x0000000000419000-memory.dmp

          Filesize

          100KB

          Download

        • memory/2684-9-0x0000000000400000-0x0000000000419000-memory.dmp

          Filesize

          100KB

          Download

        • memory/2684-7-0x0000000000400000-0x0000000000419000-memory.dmp

          Filesize

          100KB

          Download

        • memory/2684-5-0x0000000000400000-0x0000000000419000-memory.dmp

          Filesize

          100KB

          Download

        • memory/2684-3-0x0000000000400000-0x0000000000419000-memory.dmp

          Filesize

          100KB

          Download

        • memory/2684-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2684-13-0x0000000000400000-0x0000000000419000-memory.dmp

          Filesize

          100KB

          Download

        • memory/2684-18-0x0000000000400000-0x0000000000419000-memory.dmp

          Filesize

          100KB

          Download

        • memory/2684-19-0x0000000000400000-0x0000000000419000-memory.dmp

          Filesize

          100KB

          Download