Overview

overview

10

Static

static

3

792f3bdd88...18.exe

windows7-x64

10

792f3bdd88...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-05-2024 12:37

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General

  • Target

    792f3bdd88a09c14d83d1729e1daaaa6_JaffaCakes118.exe

  • Size

    202KB

  • MD5

    792f3bdd88a09c14d83d1729e1daaaa6

  • SHA1

    3db459771b7b5d89271f2c40946f015a749edcf8

  • SHA256

    15261902cbeea085d10a5b0a37b11ac259346bf62145095bc9b4427b343a0c41

  • SHA512

    d1e0f3f1c4e03c08cf62df380c6aa5be21b6d79cfb1903501aa76d7b54bf34191d4254ac0323291db7afda0c6de9032f8560908fe986f6c26439b168a429d508

  • SSDEEP

    3072:R8nZhZ9SJV0u5wszT1AQnXD15fV29WE1DOJEARlEW:gZhSJ3vKQTt2sEeH

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 B167181E 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 (518) 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\792f3bdd88a09c14d83d1729e1daaaa6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\792f3bdd88a09c14d83d1729e1daaaa6_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:1948
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1836
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:5964
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:4324
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:8744
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:7844
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:6168
        • 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:7972
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:9600
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2620

          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

          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\AppvIsvSubsystems64.dll.id-B167181E.[[email protected]].bot
            Filesize

            3.2MB

            MD5

            57713be467dcb20e99ec59e6fd7be33b

            SHA1

            2f681f987d2e91b8be3ae41a87d623d1d416eef9

            SHA256

            dc156514e818e9286becaa4faebc488b020baa1f24710dbfcb04b4f5d202fe29

            SHA512

            a98a035a2f0b0e542c728703187eb41b42bd8eb22b0a6d7320d374962b2495433c28012233a28d9a43322921267d6b7f0d0eb10e81c4a4e0d5435dd009d39b38

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

            13KB

            MD5

            375316907e2ffe681942a11c07477fc8

            SHA1

            d54e66637229d4f86b332e1a534bc5fa108e6de4

            SHA256

            943b959ecead4b3a5884e882aaaf7fdddcc752292170343f1f96cb5a2b975756

            SHA512

            32b77875f7b9191f49d91a5b6fad1c557b9e88a89621c5ae348011c730cf482ca22bb406713e9749733d236c615fd98c6f6d8e355151f2125dfc9a968f7b8b3d

            Download Submit
          • memory/1948-4-0x0000000000400000-0x0000000000419000-memory.dmp
            Filesize

            100KB

            Download
          • memory/1948-3-0x0000000008860000-0x0000000008879000-memory.dmp
            Filesize

            100KB

            Download
          • memory/1948-1-0x0000000006DA0000-0x0000000006EA0000-memory.dmp
            Filesize

            1024KB

            Download
          • memory/1948-20874-0x0000000000400000-0x0000000001400000-memory.dmp
            Filesize

            16.0MB

            Download
          • memory/1948-24697-0x0000000006DA0000-0x0000000006EA0000-memory.dmp
            Filesize

            1024KB

            Download
          • memory/1948-24698-0x0000000000400000-0x0000000000419000-memory.dmp
            Filesize

            100KB

            Download