Overview

overview

10

Static

static

10

2024-04-22...ma.exe

windows7-x64

10

2024-04-22...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-04-2024 07:45

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General

  • Target

    2024-04-22_57288b550b6e95e1dd19aa36d4033449_crysis_dharma.exe

  • Size

    92KB

  • MD5

    57288b550b6e95e1dd19aa36d4033449

  • SHA1

    0326a8483619f26a27f9edb35a0cd7adebc78333

  • SHA256

    1597f8e59c1b1d2d4818705af04f7fa0433e16d1f43ffa9a8158b23524de3991

  • SHA512

    fbb4a248c95cf4b719bfd46e3f816791ee051568054689777187203f82849ed546a77c7b80dcbd342749ae97bc6d54de3b893c3afafcf4cc9f4b5fd0bf8d58b6

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4ASIGJ0iPsaHy86Zt62nzwpdVJ6nbQP:Qw+asqN5aW/hLoIkPGZwpdVJ0

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
hunt All your files have been encrypted! Don't worry, you can return all your files! If you want to restore them, write to the mail: [email protected] YOUR ID [email protected] We strongly recommend that you do not use the services of intermediaries and first check the prices and conditions directly with us. The use of intermediaries may involve risks such as: -Overcharging: Intermediaries may charge inflated prices, resulting in improper additional costs to you. -Unjustified debit: There is a risk that your money may be stolen by intermediaries for personal use and they may claim that we did it. -Rejection of the transaction and termination of communication: Intermediaries may refuse to cooperate for personal reasons, which may result in termination of communication and make it difficult to resolve issues. We understand that data loss can be a critical issue, and we are proud to provide you with encrypted data recovery services. We strive to provide you with the highest level of confidence in our abilities and offer the following guarantees: ---Recovery demo: We provide the ability to decrypt up to three files up to 5 MB in size on a demo basis. Please note that these files should not contain important and critical data. Demo recovery is intended to demonstrate our skills and capabilities. ---Guaranteed Quality: We promise that when we undertake your data recovery, we will work with the utmost professionalism and attention to detail to ensure the best possible results. We use advanced technology and techniques to maximize the likelihood of a successful recovery. ---Transparent communication: Our team is always available to answer your questions and provide you with up-to-date information about the data recovery process. We appreciate your participation and feedback. 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 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (313) 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\2024-04-22_57288b550b6e95e1dd19aa36d4033449_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-22_57288b550b6e95e1dd19aa36d4033449_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:1908
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1696
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2924
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1104
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2672
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2624
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3048
        • 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:2324
        • 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:2564
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1320

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-B2F33864.[[email protected]].hunt
        Filesize

        23.5MB

        MD5

        caba0ab74420aad930f2c56c8fd7c7b8

        SHA1

        54ea8e13838b710846f62c9d489fc5a7f4a4713b

        SHA256

        6e0ffa0b167fd5f81ad06eabd0d9411430bb7f5f176c90ffe9c6ed3bcc398ef8

        SHA512

        1d15d053f0cd557eb3d46b69629b9602c26def85686d5ac64659857d355de207b7f0af69bd7b7b05176de49c7db7a3bc6d30dba91681384068a0982aae4adbc4

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

        3KB

        MD5

        942a87b285bab932b127419cccb96f0c

        SHA1

        67524d23416bba34c1396284dc9b13e9799badd5

        SHA256

        15c58dbf413b1314e3e61fd8cdea45118488be5ad72963fb68150c0f6103cba8

        SHA512

        3e9c42c7456cc6b3933ea38dabcdc8a9c875b7e7f1122d68d045679ba222451f6a65f8f81cbc32dfcdb94f234dafb81565956ce0ed7117e22c51dd40855bd825

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      • memory/2564-20125-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

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