Overview

overview

10

Static

static

1

dharma_unp...in.exe

windows7-x64

10

dharma_unp...in.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    07-03-2023 04:44

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General

  • Target

    dharma_unpacked.bin.exe

  • Size

    92KB

  • MD5

    6ed029b9794717d305103e9eb20a8d1f

  • SHA1

    956ebe054b5f286a1584b365dde59c130dd494ee

  • SHA256

    a43dab9c34af5a49a2a615e86db3e2bf4c5467853dd5bd4f1a1c73619b683ab2

  • SHA512

    dc080d7d7e6e69e1068212ac39e2feb19c5293d52340e9beccf897253a7281032bd4656a8fa5c4f028eed4930487fb8e7029cdd414287a119bc7f6bfbcf0c22c

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AOYNq9Siz/+XVgaypvbjaFJt7:Qw+asqN5aW/hLFNq9EWvajt7

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\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 syndicateXXX@aol.com Write this ID in the title of your message AFE99EFB In case of no answer in 24 hours write us to theese e-mails: syndicateXXX@aol.com 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.
Emails

syndicateXXX@aol.com

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
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    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). Likely ransomware behaviour.

  • 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_unpacked.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\dharma_unpacked.bin.exe"
    1⤵
    • Modifies extensions of user files
    • 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:1964
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2032
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1724
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1768
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:612
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2596
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2264
        • 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:2148
        • 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:2476
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1228

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Privilege Escalation

      Defense Evasion

      File Deletion

      2
      T1107

      Modify Registry

      2
      T1112

      Credential Access

      Credentials in Files

      1
      T1081

      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

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-AFE99EFB.[syndicateXXX@aol.com].xxxxx
        Filesize

        23.5MB

        MD5

        bd6babe3dd99c9edcf163789e6bf2d9d

        SHA1

        531c7fbc2cd759f8ef3157a9110a5d19328ec4ec

        SHA256

        62122e3d77fe6059b5803d56bc4b2053a9e58f1d59a9a66bc76cb2fa7ca00cdb

        SHA512

        4687f4fcf90b4246df9e7fca1f0ece356c17608dfd234eec57fd2a04d07c3d8e0b3d6dde41c00d520af228fd7220e423f351ec2f4515fb54a021dd181e27ca39

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

        13KB

        MD5

        ffd261175c5f065087e8ba64f371ca1b

        SHA1

        78a913a8f389b1a4d36b9aa112252718d34b545a

        SHA256

        9e013dba28297281d2aabffddfeb5d7ec49fe5865344bc1958ae3557423c783f

        SHA512

        de93b74961cd1fc24f0e74b7781bdbad7462c0c3afa0a54fc2b1dcd1acd9e791fea4db750b162047567da935b2d28b3af9a93d3ef3794b0219ba9bba1db285b7

        Download Submit
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        Filesize

        13KB

        MD5

        ffd261175c5f065087e8ba64f371ca1b

        SHA1

        78a913a8f389b1a4d36b9aa112252718d34b545a

        SHA256

        9e013dba28297281d2aabffddfeb5d7ec49fe5865344bc1958ae3557423c783f

        SHA512

        de93b74961cd1fc24f0e74b7781bdbad7462c0c3afa0a54fc2b1dcd1acd9e791fea4db750b162047567da935b2d28b3af9a93d3ef3794b0219ba9bba1db285b7

        Download Submit
      • memory/2148-20174-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp
        Filesize

        64KB

        Download