Overview

overview

10

Static

static

d4b6920e28...4d.exe

windows7_x64

10

d4b6920e28...4d.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    11-09-2020 08:09

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General

  • Target

    d4b6920e28ddba697f8e2e33f6479d16c9b92fefdc36894e3c594e3f71095e4d.exe

  • Size

    92KB

  • MD5

    c652fadd314392b61976fc226e6f6d38

  • SHA1

    38856dcaa805178155f0314a7e0430c66cb094bb

  • SHA256

    d4b6920e28ddba697f8e2e33f6479d16c9b92fefdc36894e3c594e3f71095e4d

  • SHA512

    dd02b5f9d5197ef6e5fa22a0ee67e24e19b5bb8824535786c6165b2e8eed6d558687ee6f63bbbf5ff2c55ff827fa22310b2f2118abb88eb0df603289526f6f19

Score
10/10
ransomwarepersistencespywaredharma

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\FILES ENCRYPTED.txt

Ransom Note
all your data has been locked us You want to return? Write email trizvani@aol.com or trizvani@tutanota.com
Emails

trizvani@aol.com

trizvani@tutanota.com

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 trizvani@aol.com Write this ID in the title of your message 122E2D9E In case of no answer in 24 hours write us to theese e-mails: trizvani@tutanota.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

trizvani@aol.com

trizvani@tutanota.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
  • 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.

    spyware
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Drops desktop.ini file(s) 70 IoCs
  • Drops file in System32 directory 2 IoCs
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Drops file in Program Files directory 35136 IoCs
  • Interacts with shadow copies 2 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 562 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d4b6920e28ddba697f8e2e33f6479d16c9b92fefdc36894e3c594e3f71095e4d.exe
    "C:\Users\Admin\AppData\Local\Temp\d4b6920e28ddba697f8e2e33f6479d16c9b92fefdc36894e3c594e3f71095e4d.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:1732
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:420
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1856
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2120
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2564
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1928
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3228
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
            PID:2056
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:3016
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Modifies service
            • Suspicious use of AdjustPrivilegeToken
            PID:2140

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Initial Access

          Execution

          Persistence

          Registry Run Keys / Startup Folder

          1
          T1060

          Modify Existing Service

          1
          T1031

          Privilege Escalation

          Defense Evasion

          File Deletion

          2
          T1107

          Modify Registry

          2
          T1112

          Credential Access

          Credentials in Files

          1
          T1081

          Discovery

          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
            Download Submit
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
            Download Submit
          • memory/420-0-0x0000000000000000-mapping.dmp
            Download
          • memory/1856-1-0x0000000000000000-mapping.dmp
            Download
          • memory/1928-4-0x0000000000000000-mapping.dmp
            Download
          • memory/2056-7-0x0000000000000000-mapping.dmp
            Download
          • memory/2120-2-0x0000000000000000-mapping.dmp
            Download
          • memory/2564-3-0x0000000000000000-mapping.dmp
            Download
          • memory/3016-8-0x0000000000000000-mapping.dmp
            Download
          • memory/3228-5-0x0000000000000000-mapping.dmp
            Download