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
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14-06-2024 19:22

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General

  • Target

    2024-06-14_05b566e2c6f36522bd827c88f5c469ad_crysis_dharma.exe

  • Size

    92KB

  • MD5

    05b566e2c6f36522bd827c88f5c469ad

  • SHA1

    ada56f365f55beff6f57becb2f894b4e5360ea7b

  • SHA256

    e5f08f2e63c2000a7ca7f91344c4ec2f8208875dbf10930ff9267d1ca4edadfc

  • SHA512

    c9f34fb7b337cfbce20cf2d6cb4ced1ceb4742df5c746dfe6d489c5fdd4df2afa4e75abbe28fe9768da477787c501b0b4210c843b034e1f8e449c5bca6f62507

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4AYGHr/gk1juEGsQJcntrUbSnmp8zaUbBa:ww+asqN5aW/hSiOhZksGcB8yC8zacBa

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 9281469D 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 (311) 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\2024-06-14_05b566e2c6f36522bd827c88f5c469ad_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-14_05b566e2c6f36522bd827c88f5c469ad_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:1928
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2208
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2664
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1156
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3964
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:708
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2848
        • 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:2812
        • 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:2772
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1968

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-9281469D.[[email protected]].java
        Filesize

        23.5MB

        MD5

        0103e7af2b063d6f10ada7dc0f429dcc

        SHA1

        76f03632a90873b8e0d00021f898554a13f94ce5

        SHA256

        908aa08baa0f5900b10cc1cdd8b3f5c20572fd26797c4bdf6bd6472deba2eb57

        SHA512

        86dc42dce58b546bb6430918f131ee3c1a500d012c7b7b6966a0f29757b8a7dc3eca2583285ff73d5f449d61b1dcbdb9a27b92d3f196d477201d96d49d4693da

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

        13KB

        MD5

        c21da74cdd36a398abafda411ef92075

        SHA1

        2dd6177cd62a72723f8ea58e4bc5d7c4542ac13e

        SHA256

        0a17d9958196b83707422163c3bdf161c1067d9f9393794c0b504624b6c53b9f

        SHA512

        528496bdad8ebdf3aa79ffdb97b3b98e142f57f02e921a97620af6dcd2b2ed8304126ca45d9bff4cba0ada80992c495776517df33d9ec317db81f66ba1c6c805

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      • memory/2812-20283-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

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