Overview

overview

10

Static

static

10

2024-06-10...ma.exe

windows7-x64

10

2024-06-10...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    55s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/06/2024, 21:36

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General

  • Target

    2024-06-10_9962a4bfb27630ea2a5008549318e613_crysis_dharma.exe

  • Size

    92KB

  • MD5

    9962a4bfb27630ea2a5008549318e613

  • SHA1

    80544aee2d6693fc98492a001238a6423fe4ef4d

  • SHA256

    1e7f746974d98e4661adfdf9adba0cf338e99abf089e973427b81cc56b15eed1

  • SHA512

    b27d03d20aae41865c69a1e314a20eb045a0f1341d28fd3d5fdb8e9b1d7ebc4ce8901d496c9e7e1fcd4a7cbdaf079d2cd594cfbc02ee3c78ca08635059bda93b

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4AxbEg/nGf+XRJBfDUDmd2Z8osGj5azkA0btyDh:ww+asqN5aW/hSog/oK7BnatawF2

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 C0EA1FA3 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 (514) 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\2024-06-10_9962a4bfb27630ea2a5008549318e613_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_9962a4bfb27630ea2a5008549318e613_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:2900
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:464
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:880
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2592
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3272
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1400
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:7788
        • 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:7864
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:6184
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:7500

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-C0EA1FA3.[[email protected]].com
            Filesize

            2.7MB

            MD5

            b4face9ca0b0480e60a5315f75221a7d

            SHA1

            30bbb44211bf172fac3e5e0deeb5b6458d566519

            SHA256

            8d8274664ec0d853d3b93d20ab7bbd5d833dda5be3b529f6962291e3fe163429

            SHA512

            0ab18f291007520d56be9bd47acf7d312a3c27bcf763a3c2a2cbbf5ae6a928bba83a059a529a2664c8ca007b3042286a266e42b9dac6c84908b070067ba81e3a

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

            13KB

            MD5

            92792cb63568a1ec556bcea585cb41c1

            SHA1

            7b16804cbcda4cce4110e37cf02ed7ee6a1f4270

            SHA256

            47bfb5dedca34ac9939bf6e07fb802f15342207ff51aa6686728d963af16548f

            SHA512

            da577a4e1f864b3944133e9ac09b9b34ef55087ea2b7082bcd0e4a76effc99f398e63fb0105851793fcb612ab020c343e38c6090be3ba27335e6e78d0a29a37b

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