Overview

overview

10

Static

static

3

dharma.exe

windows7-x64

10

Resubmissions

11-01-2024 08:29

240111-kdjm8sdcb8 10

05-12-2022 08:34

221205-kgqwqagb21 10

Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    11-01-2024 08:29

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General

  • Target

    dharma.exe

  • Size

    92KB

  • MD5

    ba67dd5ab7d6061704f2903573cec303

  • SHA1

    f7ca4a5d4c8d24083b86ff0a5b102ad68e0c9e34

  • SHA256

    6b1f4df924fb0e5067df18dfc5063d409f3bf2ee0d14b381b3f583e0d0da3ae5

  • SHA512

    291ab3acb7e7619243baced30ceed24b65f76a7edc9e2d1eb875ebdf590b3321c40ec1a3d44c109ab6a8a29ad43268780fcdd0448227f8f0c62ba7bbaadc7452

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AaEsY/ZlZI7teK7FiuiqhxVXf8lvLte23q9AH2:Qw+asqN5aW/hLnsqfcteK7VJAztb3qs

Score
10/10
dharmapersistenceransomwarespywarestealer

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 AFB33E5D 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 1 file for free decryption. The total size of files must be less than 1Mb (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 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (319) 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\dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\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:1820
    • 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:2768
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:568
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1008
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:216
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1660
        • 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:540
        • 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:2628
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2468

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPsWW2.cab.id-AFB33E5D.[[email protected]].combo
        Filesize

        513KB

        MD5

        e32086c4ad4873bc3faba78959988e94

        SHA1

        d95b047a121668e44183dc6da9b35d364e11cb5c

        SHA256

        693ced326753c6825ad8850b8ba552c4d3d2bbb196078c5940a9a5bf40ee9c68

        SHA512

        b79557bb17a4be8e7970f9ac2c7d07a1d60ee4b7fbfec1aec140ba0dbf899df53a852017f0d2d6ed8646cae372976c54a781898dd8d2721d941a0aef27e2dce5

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

        13KB

        MD5

        20c30ac8fbc404a414cea2a7780131d8

        SHA1

        7709e5e229ae1f1d44ed0180c7454fd85499245c

        SHA256

        11f2e1e62a73344f2b3850d4aa9331511eea406d74cce7be7fbea6ab073aff05

        SHA512

        99bd23253e1a7cebb3d63e954f4b42c89f7aa656a8a8c8e57b921e9c1c76857c1238bf65cb91256581dd1623d4545d464997fbd33718901d9deef54a30339c50

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      • memory/2628-20103-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

        Download