Overview

overview

10

Static

static

3929729e7b...34.exe

windows7_x64

10

3929729e7b...34.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-06-2022 17:37

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General

  • Target

    3929729e7b0f42902887cc1739b6dc23a2ae916e476e6ed32177d26a52f82d34.exe

  • Size

    200KB

  • MD5

    fd80e80c66e845241f572f13aaf0d9d0

  • SHA1

    2af2cc6c7840e7a32e9460d8463a6d8a9c22c59a

  • SHA256

    3929729e7b0f42902887cc1739b6dc23a2ae916e476e6ed32177d26a52f82d34

  • SHA512

    424119a5989754e12cda7e4d66f0971afc28cd5f0dfcb1c125b2ff283b05c31617ec9b0fdaea815f7331c5dee7623b16d56028a90fac5d40c49f5e173d20c26d

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 admin@sectex.net Write this ID in the title of your message EA5B30DC In case of no answer in 24 hours write us to theese e-mails: admin@sectex.world 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

admin@sectex.net

admin@sectex.world

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\3929729e7b0f42902887cc1739b6dc23a2ae916e476e6ed32177d26a52f82d34.exe
    "C:\Users\Admin\AppData\Local\Temp\3929729e7b0f42902887cc1739b6dc23a2ae916e476e6ed32177d26a52f82d34.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:2028
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1464
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1408
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1772
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:596
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1844
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1496
        • 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:1448
        • 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:684
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:524

      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
        Filesize

        13KB

        MD5

        0ac53bbe7aeca2e03425f4bd74b93dc4

        SHA1

        9deca4f2ea1c8715c1330bed802edd5a3e15911e

        SHA256

        db7cee2bb13deb8c310301b139912e37a6fab2989a1befba1c8a590dcdaca230

        SHA512

        1b4a8028faf305152e94af8f26954c22a7d5d7d050832a654932a712c17406dd4287e163388ba798be4503ab3619dd1a719ff3f641135c680b0b6c2145be4da7

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

        13KB

        MD5

        0ac53bbe7aeca2e03425f4bd74b93dc4

        SHA1

        9deca4f2ea1c8715c1330bed802edd5a3e15911e

        SHA256

        db7cee2bb13deb8c310301b139912e37a6fab2989a1befba1c8a590dcdaca230

        SHA512

        1b4a8028faf305152e94af8f26954c22a7d5d7d050832a654932a712c17406dd4287e163388ba798be4503ab3619dd1a719ff3f641135c680b0b6c2145be4da7

        Download Submit
      • memory/596-62-0x0000000000000000-mapping.dmp
        Download
      • memory/684-66-0x0000000000000000-mapping.dmp
        Download
      • memory/684-87-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp
        Filesize

        64KB

        Download
      • memory/684-67-0x000007FEFC0C1000-0x000007FEFC0C3000-memory.dmp
        Filesize

        8KB

        Download
      • memory/1408-57-0x0000000000000000-mapping.dmp
        Download
      • memory/1448-65-0x0000000000000000-mapping.dmp
        Download
      • memory/1464-56-0x0000000000000000-mapping.dmp
        Download
      • memory/1496-64-0x0000000000000000-mapping.dmp
        Download
      • memory/1772-58-0x0000000000000000-mapping.dmp
        Download
      • memory/1844-63-0x0000000000000000-mapping.dmp
        Download
      • memory/2028-54-0x0000000004FFB000-0x000000000500E000-memory.dmp
        Filesize

        76KB

        Download
      • memory/2028-61-0x0000000004FFB000-0x000000000500E000-memory.dmp
        Filesize

        76KB

        Download
      • memory/2028-60-0x0000000000400000-0x0000000004E8B000-memory.dmp
        Filesize

        74.5MB

        Download
      • memory/2028-55-0x0000000075FE1000-0x0000000075FE3000-memory.dmp
        Filesize

        8KB

        Download
      • memory/2028-59-0x0000000000220000-0x0000000000239000-memory.dmp
        Filesize

        100KB

        Download