Overview

overview

10

Static

static

3

386ad76c89...18.exe

windows7-x64

10

386ad76c89...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-05-2024 05:08

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General

  • Target

    386ad76c899489cbe2966ef26a941802_JaffaCakes118.exe

  • Size

    92KB

  • MD5

    386ad76c899489cbe2966ef26a941802

  • SHA1

    c8a2b0a0b5417f5d502a6446fd7055f9111d0b59

  • SHA256

    fe8c90707056408448fd4887305773f8572e6e128892a9665b5c07088841e977

  • SHA512

    538d60b0e199818c26a751f6cbe00c4d45b2b067a052734341778d690d5413749086b11c53d429768fadf3b0e4f9709698bc37747b091b53a633add4c45cdbc4

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AijpAtcn3vvvz/OB6kBZESNI9uXpfqzIIT:Qw+asqN5aW/hLcNAtcHL5822fK

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealer

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 8AF6B330 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 (517) 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 2 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\386ad76c899489cbe2966ef26a941802_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\386ad76c899489cbe2966ef26a941802_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:2508
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2260
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:6368
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2500
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3700
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:5420
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1492
        • 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:3736
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:6584
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:7016

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-8AF6B330.[[email protected]].combo
            Filesize

            2.7MB

            MD5

            548122d861b25ed2c895fc7af6e139ab

            SHA1

            313eb464d0869a06d6f9174d1473f77828169d8c

            SHA256

            1e8e700362f81eb3749c944ad551349f4a4ebe85d3dbe139f5897f122813b1e1

            SHA512

            d5cc5294fcc67ca5f44e7e8a0f9789989494e9aaa8310aa82cdfd6f6f84fa5e132b8d5b3984dd065993ef41355bf55ed53c54daf352e496e247b0db95e9a5469

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

            13KB

            MD5

            13987cf726d90c4e1efd2aa9b87a344f

            SHA1

            3eb7758c6e2903c5032c7e0303b1e57f5311d854

            SHA256

            76679eb7204acefadc0b5c3218c49132e9409fb815afa1287d2475b2bc75ce06

            SHA512

            e8646e06371bb0a233d9b6d95f26b851cd528a20708543d2096d7c8a874f4011d655345046d596ce3d826b89e5ec15afcffc37b8362c52eed344aed37f3d4a66

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