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
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-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 0ECB4DA4 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 (663) 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_05b566e2c6f36522bd827c88f5c469ad_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-14_05b566e2c6f36522bd827c88f5c469ad_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:1848
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3528
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2880
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:7008
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3452
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:276
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:5600
        • 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:5980
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:1952
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:6692

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-0ECB4DA4.[[email protected]].java
            Filesize

            2.7MB

            MD5

            6d2455cc9759e351385cfd8fa77e4fce

            SHA1

            89d79e381146f14a413ee7f22cd731c0cfbafb0b

            SHA256

            e97182ec4c501b928f70783f7f4cbae38985b02e3116d81faf3268f38ed286b2

            SHA512

            d85c56cc55f8c79e73b3fb42ff3bfa52d97684f659aaca1b50b994cd5435ccbaff4edfb3da5804111415bd27021a26db27a19ba72047346566d2967edc334990

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

            13KB

            MD5

            1b4695eefdf64a96cfc4f02c3ab55426

            SHA1

            4e22e1b1d6c7fc144c3aa2bf1d6e2677e7418c9d

            SHA256

            3db39c954458f10e8869889e707fc3d056ca7c8af37c01f63a9df78de4333688

            SHA512

            10972a9d0af3eee86d253fb1289f04eb9a15aae9cdc59d069b2db8a82dbb79a9a8cf58df848a340683e552138c7b3f7cbfb295785440ea8a39cee00ff34a9099

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