Overview

overview

10

Static

static

3

bcbda2b6b0...18.exe

windows7-x64

10

bcbda2b6b0...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-06-2024 15:47

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General

  • Target

    bcbda2b6b06e19096393bdecf201b6d3_JaffaCakes118.exe

  • Size

    249KB

  • MD5

    bcbda2b6b06e19096393bdecf201b6d3

  • SHA1

    8020f00ac69306910a62815964b52fdb999e2924

  • SHA256

    5d030decf5d33e780127fc2bdad12829dd62906a27cd4dafb48473d9d881eeee

  • SHA512

    0f855ab95ecfd289374f1d2acb9bb59f375bf520d7fb7a6d65b54fa953cdc0a34952a668c644f205810302d7b7b685317aea9fb9a1cb05d02f32383e86ad7dbd

  • SSDEEP

    6144:99xk5oIaePpAG/WTMYkG3Kyw8UML2dGexE41J:jxOoIaePpt/FYkG3Zw85Z4r

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealer

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 1A92FB1A 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 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.) 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 (511) 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
  • 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
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 16 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\bcbda2b6b06e19096393bdecf201b6d3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bcbda2b6b06e19096393bdecf201b6d3_JaffaCakes118.exe"
    1⤵
    • 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:1224
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4788
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:3848
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:7584
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5796
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2740
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:8884
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
            PID:7068
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:8424
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4744

          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

          Direct Volume Access

          1
          T1006

          Credential Access

          Unsecured Credentials

          1
          T1552

          Credentials In Files

          1
          T1552.001

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          2
          T1082

          Lateral Movement

          Collection

          Data from Local System

          1
          T1005

          Exfiltration

          Command and Control

          Impact

          Inhibit System Recovery

          2
          T1490

          Resource Development

          Reconnaissance

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-1A92FB1A.[[email protected]].java
            Filesize

            2.7MB

            MD5

            876545a453b5fd52c9418e21089c7086

            SHA1

            12c257fb46e40aef29988cbe122f5e397da8eff8

            SHA256

            e89bf912ff3bb48ca21f47cb7c4a338d4fa406402989d20fa4f42a117f710efc

            SHA512

            333d7979bab6cf498d7b1a897275f6d7903eaa3774b9e42c671803599397ed9e0ff5d25576f57ea8df3125532e5d11230787a95d0672c56edc8877a96641b166

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

            13KB

            MD5

            f6e2401833063cdfa717038ea26c6bd8

            SHA1

            4f31c0119f3b460bd2a40d05cccd62000686907e

            SHA256

            a75e84583033121ac1622e48045256c0283d0f39fe3c02b2fed6eff7e9942c75

            SHA512

            38775124510aebdc063f3f81d7526b4790c7adaac69eaf95077ebf2c9ea8b4954f9dc096e9b99c89fdae94b288723aeec320987b7a33c0aa66cd03fe282c7e07

            Download Submit
          • memory/1224-3-0x0000000000400000-0x0000000000419000-memory.dmp
            Filesize

            100KB

            Download
          • memory/1224-2-0x00000000006D0000-0x00000000007D0000-memory.dmp
            Filesize

            1024KB

            Download
          • memory/1224-20936-0x0000000000400000-0x0000000000445000-memory.dmp
            Filesize

            276KB

            Download
          • memory/1224-24833-0x00000000006D0000-0x00000000007D0000-memory.dmp
            Filesize

            1024KB

            Download
          • memory/1224-24834-0x0000000000400000-0x0000000000419000-memory.dmp
            Filesize

            100KB

            Download