Overview

overview

10

Static

static

10

2024-06-12...ma.exe

windows7-x64

10

2024-06-12...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 14:40

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General

  • Target

    2024-06-12_609d2e4eb7d20b36325a7802f271dc01_crysis_dharma.exe

  • Size

    92KB

  • MD5

    609d2e4eb7d20b36325a7802f271dc01

  • SHA1

    469a568005cfafb8938cc7b16f365ab8f225978b

  • SHA256

    256c7da35b7efeff1db388ad09d341bc32839dae0edcb5524bc39fa358fe4d23

  • SHA512

    26bf39e82253ee0511b3498efb320785ea39b6904d8fea73aa8fe81bd218774192f484c4b8e05e69b4c55176d566afca70d187c270347a8a13a0b0c9a019e72f

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4AB8Dsx7Zoygwff/WDb4hkUwqS06ky597:ww+asqN5aW/hS1Z2bDbCkUK0

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 B4C1BB50 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 (666) 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\2024-06-12_609d2e4eb7d20b36325a7802f271dc01_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_609d2e4eb7d20b36325a7802f271dc01_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:3004
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3780
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:372
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3336
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:6040
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:7644
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:7696
        • 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:7248
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:6556
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:5708

          Network

          MITRE ATT&CK Enterprise v15

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-B4C1BB50.[[email protected]].bip
            Filesize

            2.7MB

            MD5

            42aa6d6313e02290a8c61e05c62318d2

            SHA1

            971874b9cb16b8bdeb8fd65f3b534635f3aaed4c

            SHA256

            d3a6473f90604bafa708a109bde2801ab9a6d42672a8d855c9d7475bcb8cde2b

            SHA512

            da430223a27c51e45b999ac38c0423cb61cb8cd80f1cf3104e8b10be050ba5c425540231c4fc2c4c127c8314517e2b84d74e7a8903c262e264aea02335d4103e

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

            13KB

            MD5

            e86a1ef1912c37151746a15aa41662b0

            SHA1

            91658c7f31b21b2a4b7268f3c9668c8e24af5002

            SHA256

            de281157ccb94e3af042ee731dd2aedd87c56b6c93845a38b5aaf6d8a80edc7d

            SHA512

            15915af726049a8bb41fade9e59d407d70c0aa5262ef9730963f22e92f4787325efceeff2749e256762a67352965371224066add4a73fc608ed1d93dfd911f4c

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