Overview

overview

10

Static

static

10

2024-06-14...ma.exe

windows7-x64

10

2024-06-14...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-06-2024 14:46

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General

  • Target

    2024-06-14_d94f7c19b8d47d9172400fc108de7b2f_crysis_dharma.exe

  • Size

    92KB

  • MD5

    d94f7c19b8d47d9172400fc108de7b2f

  • SHA1

    3e9824ba8df08d6244c5dc0d104ac07f6732712f

  • SHA256

    ce7a258a0e25dd0036f3904fe54837b15dfa2ac7aa331856d79f9c63f9f75b34

  • SHA512

    bffeddef6a4786514daf441872d958a4d94c8148f57da715dbbee8588e6e90dcc871e276ec1a9aa73766e43d7d2d00d05585cf4c01ee4c26255df1cf08439e57

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4Ab79XD5Wa9LuISNKErJwoKloI31eh62Y6V:ww+asqN5aW/hSR5X95L3SNKUJwoK/leR

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 F17EB7BE 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 (521) 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\2024-06-14_d94f7c19b8d47d9172400fc108de7b2f_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-14_d94f7c19b8d47d9172400fc108de7b2f_crysis_dharma.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:1588
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2596
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:6692
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:6436
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1480
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:11648
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:8084
        • 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:7152
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:8788
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4576

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-F17EB7BE.[[email protected]].bip
            Filesize

            2.7MB

            MD5

            2b06838bfb66425eb255ea0eddf8dbc6

            SHA1

            72688c528c036e7e4ce9f456e83404a8dd489f4d

            SHA256

            51a5ed75f52cd158819f0db7a07355c714d9ae18ed58b8c39be54b49c755c3d9

            SHA512

            d4b849a7c73d04ab3feb5d056cf8d5fcca9f055aa734666653d032d15305d416807e77b76d41e5a8d1e63b4cb508afb235b2349208c2910e5bee22961a36fa5d

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

            13KB

            MD5

            397b21605979402683627ad8e52dec66

            SHA1

            3015a27e925c5c51c3729f6e12507b4f8a385b63

            SHA256

            1c677c02aa0a39bd7ad12a61073970c4cbd692b90d5b48d5706f1e35d58310b1

            SHA512

            05c83065e43123fad96a2c441038a8a9f537fe70c95d97a6fc9bcd5b655ac15bfa2932684fa54dc7a2f7184b898baeb88dceda73c5c61ce4477bb10c308810ec

            Download Submit