Overview

overview

10

Static

static

3

ac870d98fc...18.exe

windows7-x64

10

ac870d98fc...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    15-06-2024 02:02

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General

  • Target

    ac870d98fcfca054b2c4140bc584c9c6_JaffaCakes118.exe

  • Size

    268KB

  • MD5

    ac870d98fcfca054b2c4140bc584c9c6

  • SHA1

    7c49cf18f734afc169914568410bd4fee0a22e4b

  • SHA256

    3a12c5a7af5715d62944770c6dd9da366d2f4d20265b9d8f32e79b72705743a0

  • SHA512

    7e17e7685219258b0ffde772b76defdb1238fbee9cadca67075648b06c7178dd75776fed277fb25d1028cb25a58a43e5888883c9b450e9988fb3acc55c1dd8ac

  • SSDEEP

    6144:ZhWeBAPY6czY/rRPsZdIDgQV7lGLCz1O7i:6eBQHgQ9lZV

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 2EED5577 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\ac870d98fcfca054b2c4140bc584c9c6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ac870d98fcfca054b2c4140bc584c9c6_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:2296
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:284
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2836
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2652
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2432
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3120
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1996
        • 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:860
        • 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:2220
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2592

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\osetup.dll.id-2EED5577.[[email protected]].bot
        Filesize

        6.3MB

        MD5

        7ec7540d3a6969bbf55d60b6af550382

        SHA1

        e621671bf66cebe96e7b47ba3e62d4ca885679d1

        SHA256

        95a87f5ca333727e9a7456510a62bf2f59a64ff6e36b59db4948139ecb6c0167

        SHA512

        0e10bf4e76774c143b1392cc2e9671a01d571140b3f5c7f42fa505bb7626d24c93b6cbc574ddfcfeae6de86d06482d638c496d62246321275ffba9051a0ba932

        Download Submit

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

        13KB

        MD5

        31371a91a0d6804d7f697be751dc8bab

        SHA1

        20688670eaf228eb4dda4779646ec4180f546e2d

        SHA256

        44caac8bc6f13c29474dea6dd0181068073c1d7cd07fc399c8a928737dc337c4

        SHA512

        9227c87ff5e73db69e588083a175271dbe9c1998b0383a51c9224ea133d189919ff7b165237234f956c3d56b30bd6930408a7f0d5afdb891c97c65c5f68f79c7

        Download Submit

      • memory/2220-20279-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

        Download

      • memory/2296-0-0x0000000000400000-0x00000000005E9000-memory.dmp

        Filesize

        1.9MB

        Download

      • memory/2296-7-0x0000000000400000-0x0000000000419000-memory.dmp

        Filesize

        100KB

        Download

      • memory/2296-6-0x0000000000220000-0x0000000000239000-memory.dmp

        Filesize

        100KB

        Download

      • memory/2296-5-0x0000000000710000-0x0000000000810000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/2296-10874-0x0000000000400000-0x00000000005E9000-memory.dmp

        Filesize

        1.9MB

        Download

      • memory/2296-20283-0x0000000000710000-0x0000000000810000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/2296-20284-0x0000000000400000-0x0000000000419000-memory.dmp

        Filesize

        100KB

        Download