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
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 19:38

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General

  • Target

    2024-06-12_77abd7c7c33749da6e067f45eca571e8_crysis_dharma.exe

  • Size

    92KB

  • MD5

    77abd7c7c33749da6e067f45eca571e8

  • SHA1

    6b2acae255c7c6298d724165419733712c774b14

  • SHA256

    76799fe1b5366d42743fcbfb09721bbddec2a49489aecfdd26bf55679ae760c6

  • SHA512

    e5d10980eaab320a1604b2e55991f49cd0db9b27409e75382a1445a82299eb247df6e2cfd537bee8a51503d5a253145dd1ca74a35ddf884974a165800506e240

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4AWa/Q3YnqWgYnL8OxmskO1um3ty3aTwHXmh:ww+asqN5aW/hSjuYngYnL8sk+um303a3

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 (516) 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\2024-06-12_77abd7c7c33749da6e067f45eca571e8_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_77abd7c7c33749da6e067f45eca571e8_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:2216
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4348
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:5548
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:4284
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:6116
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:6668
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:748
        • 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:2452
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:5852
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3116

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-5EE379C4.[[email protected]].IPM
            Filesize

            2.7MB

            MD5

            ce26f962c07f86d28110998a072fb032

            SHA1

            329c48eb21c6a88116a299dc3f752d27587fc759

            SHA256

            36528c61237ad074f869cfdd80edeba3a0945412f5c47bf707a7a3b4952e1994

            SHA512

            9199f40955062054e95fd5945e0d1f002f384ae64698e68fc2ef8c4088a35e270236612a80252ec82410372f3f33983d2afe36dd26b6fe129541a69383e34e57

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

            7KB

            MD5

            1be29dc5516673d0514f47fb41ea330e

            SHA1

            de8d89dfd6a4a45dab1111ce27d01b29241b0c33

            SHA256

            adf0cf782737da8a3ac71608a5581dc548bef487ce0d9b8e87cb96312f5ae430

            SHA512

            17cd42c388a5a36ca73522d8b057f3b6c609cb759c1a5969d2d10cf02dc29ed3f7484455ef90d43bb042c4ca0cde36be165e380903ee1b82a7a2c954e307570c

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