Overview

overview

10

Static

static

3

6fbb38f1f3...18.exe

windows7-x64

10

6fbb38f1f3...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 20:21

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General

  • Target

    6fbb38f1f3ec457f1b3341967ecbe0f1_JaffaCakes118.exe

  • Size

    92KB

  • MD5

    6fbb38f1f3ec457f1b3341967ecbe0f1

  • SHA1

    6b96e23e2a25d17128f091b8c7b48866f2446a37

  • SHA256

    1d35a8e5f1e1be9280280b080071264a780dcbbdc1c4edc50947b68e1f40835c

  • SHA512

    6cc8f1c26dada347d13b5c4d878e898290d182e7268f1cdeac34c026c25b52fdcc436f174a4195896b9343b4676e0452b89f207cb1116ffce03d71b3b3151155

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AheQS83OoTGisT8ll3EZcZGzHpc3IBtbk:Qw+asqN5aW/hLeQS83OOBbElHpHBtb

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 E7B87F81 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 (312) files with added filename extension

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

    ransomware
  • 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 2 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 28 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\6fbb38f1f3ec457f1b3341967ecbe0f1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6fbb38f1f3ec457f1b3341967ecbe0f1_JaffaCakes118.exe"
    1⤵
    • 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:2952
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3048
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1284
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2464
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4016
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2804
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2140
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          PID:2736
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          PID:2340
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2420

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-E7B87F81.[[email protected]].combo
        Filesize

        23.5MB

        MD5

        745b09dce789f4b55ffe25418e201554

        SHA1

        354abf7f691982586fc0e30bb4edae1a3ba9ee76

        SHA256

        956f0a60b29ce370693026566e0f8ac915a25cdbbe46da616bb3f49551263f0a

        SHA512

        d4b4c830a1369c30ff26fae1d6cd0e7c54ea6a8390cfdcd412bd6d1bff4d77eb66983550ca41ffa7152f52ec5a5ba5a426a15f95a54fae04ccb054f98ac937f7

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

        13KB

        MD5

        5298d7a105e432ead1468ddd17595d99

        SHA1

        0bc9fc97885c3beff346605cda6c61555b899f56

        SHA256

        5ddf9c8c970d918e3662e33454c57f5fdfe9c7eb3caa3eedae3ba472a1e6b782

        SHA512

        4a485c0a86b97096f01ca46b330573adb32f4f65a281460c675ce1906b154eed4b0ff4296a3d7673bd0a07cf6b2c17a7be0715c1b415577c948ff6b79b3a8337

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      • memory/2736-20226-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp
        Filesize

        64KB

        Download