Overview

overview

10

Static

static

287a6b75d1...ad.exe

windows7_x64

10

287a6b75d1...ad.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    15-06-2022 17:27

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General

  • Target

    287a6b75d1776f89502a1fd0ec571adebff878becb0ebdcec703e8fc6e3885ad.exe

  • Size

    397KB

  • MD5

    60c40af102c485d0464236fe672d302b

  • SHA1

    d4a5a0dae3fb0274c48828e84ff8f960c7463406

  • SHA256

    287a6b75d1776f89502a1fd0ec571adebff878becb0ebdcec703e8fc6e3885ad

  • SHA512

    4d22a012d1da6878e3a1f0a726a303084e1f775281f7518bf6712eb80b8fbbf5ef4c659a4be5d8e53ad9c2e0005ec8a3454491dcae4c517f4db7a81fcbad0dac

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 [email protected] Write this ID in the title of your message C0DF9FEC 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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Interacts with shadow copies 2 TTPs 2 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\287a6b75d1776f89502a1fd0ec571adebff878becb0ebdcec703e8fc6e3885ad.exe
    "C:\Users\Admin\AppData\Local\Temp\287a6b75d1776f89502a1fd0ec571adebff878becb0ebdcec703e8fc6e3885ad.exe"
    1⤵
    • Checks computer location settings
    • 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
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:752
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:848
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:3616
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:116
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1600
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3040
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3188
        • 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:3464
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:1092
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:5008

          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

          1
          T1112

          Credential Access

          Credentials in Files

          1
          T1081

          Discovery

          Query Registry

          2
          T1012

          System Information Discovery

          3
          T1082

          Peripheral Device Discovery

          1
          T1120

          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

            3fc70d65f89885890e4cf5890b813186

            SHA1

            3294a1aedae081cf8dd698b5f1f7b7c54cb3eb15

            SHA256

            f0baae9c9abbf10da681c1645595a5f2cb49ccdbfce5a9be4bce59b86cddcca8

            SHA512

            6b9eb866f1828703ce252acb5f5d0b2448a6dce2cda364f31936c660611f1a50e105860eb6b6aeb1a538073fd6138f32c1d072e89c699a06f020fa14dc121df3

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

            13KB

            MD5

            3fc70d65f89885890e4cf5890b813186

            SHA1

            3294a1aedae081cf8dd698b5f1f7b7c54cb3eb15

            SHA256

            f0baae9c9abbf10da681c1645595a5f2cb49ccdbfce5a9be4bce59b86cddcca8

            SHA512

            6b9eb866f1828703ce252acb5f5d0b2448a6dce2cda364f31936c660611f1a50e105860eb6b6aeb1a538073fd6138f32c1d072e89c699a06f020fa14dc121df3

            Download Submit
          • memory/116-134-0x0000000000000000-mapping.dmp
            Download
          • memory/752-131-0x0000000000400000-0x0000000000468000-memory.dmp
            Filesize

            416KB

            Download
          • memory/752-135-0x0000000002480000-0x0000000002890000-memory.dmp
            Filesize

            4.1MB

            Download
          • memory/752-130-0x0000000002480000-0x0000000002890000-memory.dmp
            Filesize

            4.1MB

            Download
          • memory/848-132-0x0000000000000000-mapping.dmp
            Download
          • memory/1092-140-0x0000000000000000-mapping.dmp
            Download
          • memory/1600-136-0x0000000000000000-mapping.dmp
            Download
          • memory/3040-137-0x0000000000000000-mapping.dmp
            Download
          • memory/3188-138-0x0000000000000000-mapping.dmp
            Download
          • memory/3464-139-0x0000000000000000-mapping.dmp
            Download
          • memory/3616-133-0x0000000000000000-mapping.dmp
            Download