Overview

overview

10

Static

static

3

Ransom;Win...pz.exe

windows10-1703-x64

10

Ransom;Win...pz.exe

windows10-2004-x64

10

Ransom;Win...pz.exe

windows11-21h2-x64

Analysis

  • max time kernel
    133s
  • max time network
    135s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    20-06-2024 01:26

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Errors

Reason
Machine shutdown
Report Analysis Logs

General

  • Target

    Ransom;Win32.Wadhrama!pz.exe

  • Size

    92KB

  • MD5

    56ba37144bd63d39f23d25dae471054e

  • SHA1

    088e2aff607981dfe5249ce58121ceae0d1db577

  • SHA256

    307077d1a3fd2b53b94d88268e31b0b89b8c0c2ee9dbb46041d3e2395243f1b3

  • SHA512

    6e086bea3389412f6a9fa11e2caa2887db5128c2ad1030685e6841d7d199b63c6d9a76fb9d1ed9116afd851485501843f72af8366537a8283de2f9ab7f3d56f0

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4A40fMnvzbBb3b2wKbs1V3Mr:Qw+asqN5aW/hLdMvzbMlUK

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
YOUR FILES ARE ENCRYPTED Don't worry,you can return all your files! If you want to restore them, follow this link: email [email protected] YOUR ID If you have not been answered via the link within 12 hours, write to us by e-mail: [email protected] 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 (556) files with added filename extension

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

    ransomware
  • Drops startup file 8 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 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 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\Ransom;Win32.Wadhrama!pz.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransom;Win32.Wadhrama!pz.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:1268
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2236
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1920
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:5100
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4924
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:5520
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:4800
        • 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:3904
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:1900
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:6756
          • C:\Windows\system32\werfault.exe
            werfault.exe /h /shared Global\bac526fe693243019c16330cfcc76a6e /t 4704 /p 1900
            1⤵
              PID:5504
            • C:\Windows\system32\werfault.exe
              werfault.exe /h /shared Global\769c015252cb4157a734294518fa3c49 /t 2544 /p 3904
              1⤵
                PID:4344
              • C:\Windows\system32\LogonUI.exe
                "LogonUI.exe" /flags:0x4 /state0:0xa3a12855 /state1:0x41c64e6d
                1⤵
                • Modifies data under HKEY_USERS
                • Suspicious use of SetWindowsHookEx
                PID:5916

              Network

              MITRE ATT&CK Enterprise v15

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              Downloads

              • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-59F45DE3.[[email protected]].BOMBO
                Filesize

                2.7MB

                MD5

                532f52c37a418f68e07ef0ccbbfd5c55

                SHA1

                bfd4d17bf79aa2de93dc62a9ee4f2a9c057fba6d

                SHA256

                9b59bfbccf131d6957dbada7c9cf37f88690d89599e351260ed1952d92ad740e

                SHA512

                4c477c7f3fd63adead1bfaa58d32d72a9c82120d544aac4962d01378514f7ac0975c46fc3d78dcde5fd0f9e5ee4d1acf64a5e6970bce1d99d6af5c8c07eec29a

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

                7KB

                MD5

                4b52338874628d75c8db4f848b76049a

                SHA1

                baed15ea59ea2bba0a81e45e14a83f3ded0e595c

                SHA256

                75769892613a5b77d3ec73058137da9d4b93f665349c5beb69f12e17e3b84854

                SHA512

                cc0839ea90d30fc647e287fe713868c7b8c1671451b45cb9ed5f5006e07b61b356dcf8fbf866d86b691f699103eec8e7458971a358eb4c678aca5b567123a017

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