Overview

overview

10

Static

static

program.exe

windows7_x64

10

program.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    31-05-2021 00:36

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General

  • Target

    program.exe

  • Size

    92KB

  • MD5

    b2eff93d16267edd3817eee2a40c7eee

  • SHA1

    8489a94af0c4b9a7fd53affd64a3357141995c3a

  • SHA256

    d13c712deac973ddd3666c02b76e8c0f2f5a4291078b579e231cdb8f5554efb2

  • SHA512

    8abc98b506e977cd7958ccedefdc783be016ef3482ada047584fa8edb73ac5cff87a46c644fbb9b10c2b790399b51a6768db4762f9e5069ca04182473fbc4a2d

Score
10/10
dharmaxmrigminerpersistenceransomwarespywarestealer

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 rdphack@onionmail.org Write this ID in the title of your message 2C587399 In case of no answer in 24 hours write us to theese e-mails: freelurk@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

rdphack@onionmail.org

freelurk@aol.com

Signatures

  • Dharma

    Dharma is a ransomware that uses security software installation to hide malicious activities.

    ransomwaredharma
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\program.exe
    "C:\Users\Admin\AppData\Local\Temp\program.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:708
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3916
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:656
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:648
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2252
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3932
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3904
        • 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:1688
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:916
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:204

          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

          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

            7448243ba8fd083fb80f159ecd395a29

            SHA1

            a2da5c6b02f3976d312f9cce7059a12e55f3da27

            SHA256

            93b610de91f5a280e784da33df027dbda354272d2df600f693c838031d0d4513

            SHA512

            4f44a7d92b3e3d85d730ed4d29cd1960e62d70b5ab9a478c7953731270a0041d1f143b292e89a5073d1947b0bd468873572368af5a045fa9c5d4c993923c79b4

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

            7448243ba8fd083fb80f159ecd395a29

            SHA1

            a2da5c6b02f3976d312f9cce7059a12e55f3da27

            SHA256

            93b610de91f5a280e784da33df027dbda354272d2df600f693c838031d0d4513

            SHA512

            4f44a7d92b3e3d85d730ed4d29cd1960e62d70b5ab9a478c7953731270a0041d1f143b292e89a5073d1947b0bd468873572368af5a045fa9c5d4c993923c79b4

            Download Submit
          • memory/648-116-0x0000000000000000-mapping.dmp
            Download
          • memory/656-115-0x0000000000000000-mapping.dmp
            Download
          • memory/916-121-0x0000000000000000-mapping.dmp
            Download
          • memory/1688-120-0x0000000000000000-mapping.dmp
            Download
          • memory/2252-117-0x0000000000000000-mapping.dmp
            Download
          • memory/3904-119-0x0000000000000000-mapping.dmp
            Download
          • memory/3916-114-0x0000000000000000-mapping.dmp
            Download
          • memory/3932-118-0x0000000000000000-mapping.dmp
            Download