Overview

overview

10

Static

static

3

RansomWin3...pz.exe

windows11-21h2-x64

10

Resubmissions

22-06-2024 21:31

240622-1day4avdlf 10

22-06-2024 18:34

240622-w77gyatbmp 10

22-06-2024 16:29

240622-tzbn7athrg 10

Analysis

  • max time kernel
    282s
  • max time network
    125s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    22-06-2024 16:29

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General

  • Target

    RansomWin32.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 (554) 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 3 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\RansomWin32.Wadhrama!pz.exe
    "C:\Users\Admin\AppData\Local\Temp\RansomWin32.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:4760
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3760
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:232
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1680
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:416
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:6284
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:5204
        • 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:4080
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:1640
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:5756

          Network

          MITRE ATT&CK Matrix ATT&CK v13

          Initial Access

          Execution

          Windows Management Instrumentation

          1
          T1047

          Persistence

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Privilege Escalation

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Defense Evasion

          Indicator Removal

          2
          T1070

          File Deletion

          2
          T1070.004

          Modify Registry

          1
          T1112

          Direct Volume Access

          1
          T1006

          Credential Access

          Unsecured Credentials

          1
          T1552

          Credentials In Files

          1
          T1552.001

          Discovery

          System Information Discovery

          1
          T1082

          Lateral Movement

          Collection

          Data from Local System

          1
          T1005

          Exfiltration

          Command and Control

          Impact

          Inhibit System Recovery

          2
          T1490

          Resource Development

          Reconnaissance

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-82B1756C.[[email protected]].BOMBO
            Filesize

            2.7MB

            MD5

            e255390e6593cba5a0eb9b12c10defd7

            SHA1

            5de286fedf26feea1c7805c02d7e55f4e6e27874

            SHA256

            1380fd4c3a622b282c87fa91c8de67ef3aa42027841373f06e6735fb3fbd95e0

            SHA512

            1c2f9ccfee3882199349aefd19632d3cebad86f50bd6a08edfd283aa056335ff2c5874dc686641cfa2af5650972d1d9b79fa6d8f48b1d9f06d2f56acef8e14fe

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

            7KB

            MD5

            fc63923853daad143441bc8e333b782a

            SHA1

            ec1f96f0303c3cdfed6d81e4339c202789454fa0

            SHA256

            9e0cf490827a2d6e89521c8d20434fd426198d2edd10cdd3e09137927df3581b

            SHA512

            c15f681302c3667eb793738c79108615d6ae271be4df7a46731b9c4eb808b05fcb15826395095e74fb01ba785f22403ea76484dc2455ef87c9f17936cb691495

            Download Submit