Overview

overview

10

Static

static

c2ab289cbd...le.exe

windows7_x64

10

c2ab289cbd...le.exe

windows10_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    26-07-2021 12:40

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General

  • Target

    c2ab289cbd2573572c39cac3f234d77fdf769e48a1715a14feddaea8ae9d9702.sample.exe

  • Size

    92KB

  • MD5

    d50f69f0d3a73c0a58d2ad08aedac1c8

  • SHA1

    c25ff1bb2ea3e0804ab3f370ad2877b0b7c56903

  • SHA256

    c2ab289cbd2573572c39cac3f234d77fdf769e48a1715a14feddaea8ae9d9702

  • SHA512

    b3b9601479254bf3b36d20ea1f073171b0efa8cf9b6ce5074e9015cef243dadee9d2dcf8d4df6a7674f0dcac3c2f661ad9c76196b66046f736a5078b60e44aeb

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 paymentbtc@firemail.cc Write this ID in the title of your message 10E12B80 In case of no answer in 24 hours write us to theese e-mails: paymentbtc@firemail.cc 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

paymentbtc@firemail.cc

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 1 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\c2ab289cbd2573572c39cac3f234d77fdf769e48a1715a14feddaea8ae9d9702.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\c2ab289cbd2573572c39cac3f234d77fdf769e48a1715a14feddaea8ae9d9702.sample.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:1920
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1744
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1044
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1300
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1048
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1648
        • 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:704
        • 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:108
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:988

      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:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        MD5

        34b48707542328f6a30edef0dcaab9de

        SHA1

        222a2acebf9d99d1bea8e7ac578a029ecdb2b9d2

        SHA256

        563dc5952f56082ec21cae2c003fd2c737e44feb65b938899cf996dad94858e4

        SHA512

        cfd266caf57a21130d53da46e1a56e560f5d26469e0ac17c70ba5bd8d2d6816e12d53bdb95c99768dd7e8af3b2322d056c7f66314e8055a201d0fa5c733d57ce

        Download Submit
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        MD5

        34b48707542328f6a30edef0dcaab9de

        SHA1

        222a2acebf9d99d1bea8e7ac578a029ecdb2b9d2

        SHA256

        563dc5952f56082ec21cae2c003fd2c737e44feb65b938899cf996dad94858e4

        SHA512

        cfd266caf57a21130d53da46e1a56e560f5d26469e0ac17c70ba5bd8d2d6816e12d53bdb95c99768dd7e8af3b2322d056c7f66314e8055a201d0fa5c733d57ce

        Download Submit
      • memory/108-68-0x0000000000000000-mapping.dmp
        Download
      • memory/704-67-0x0000000000000000-mapping.dmp
        Download
      • memory/1044-63-0x0000000000000000-mapping.dmp
        Download
      • memory/1048-65-0x0000000000000000-mapping.dmp
        Download
      • memory/1300-64-0x0000000000000000-mapping.dmp
        Download
      • memory/1648-66-0x0000000000000000-mapping.dmp
        Download
      • memory/1744-62-0x0000000000000000-mapping.dmp
        Download
      • memory/1920-60-0x00000000762C1000-0x00000000762C3000-memory.dmp
        Filesize

        8KB

        Download
      • memory/2004-61-0x0000000000000000-mapping.dmp
        Download