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
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-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 DF69369A 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 (323) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • 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
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 28 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⤵
    • 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:2484
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2812
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2700
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3252
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3356
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3192
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          PID:1720
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          PID:3652
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1008

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-DF69369A.[[email protected]].bip
        Filesize

        23.5MB

        MD5

        5d48d656d4f3e768e38cc45d0006ccb8

        SHA1

        b8f1a3d86999e03e034aa60d4b19e11e0f46724b

        SHA256

        7294d66e2c879d6cdef263804b8db3030349674ab9b5abacf9a468c7a2c9d96d

        SHA512

        6626c87123c3535370db1998ba0a97db4325c94a5c1b19f1d07112e2785dfe5789e41ae68cfd3500267d9518e3cefbb055523d8c32179f0d6b5f2ab33b110180

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

        13KB

        MD5

        2402865595ae34a5fbd4931cb97dd3e7

        SHA1

        68344ed4fd6e6f5ca7dbfa777da80bcbab161df0

        SHA256

        4ccf63e19c42ce49a6ba24471d9778aacc153dcef41c6ffd77aeb18bcfef8207

        SHA512

        be06862cca9ebeb7e8f90ca151f6ba4a0172984ca20f24200e4b71f1af6aa67b5fd0db6537e6dcb9ca469bb928c0f3147f3edb0ae9b85f2b590d6c81e17e6fa1

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      • memory/1720-20171-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

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