Overview

overview

10

Static

static

5c2fb1c42f...e0.exe

windows7-x64

10

5c2fb1c42f...e0.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-01-2023 10:57

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General

  • Target

    5c2fb1c42f007093be5e463f70ee7e7192990b3385a3cbcc71043980efa312e0.exe

  • Size

    92KB

  • MD5

    a6de0d47bb017e59aefec6f4b00c2157

  • SHA1

    a71fe7dc24be53aac39771bcddaa4654fca2a26a

  • SHA256

    5c2fb1c42f007093be5e463f70ee7e7192990b3385a3cbcc71043980efa312e0

  • SHA512

    46ebbe73f247b6c2ef48199bf475cbb8dc4631e8821ba2c630a2628322e8e59c54ce5c69ba68bbf173e9c31d8ce18ed96f62641f3a075bcba4ccd00b7d6f2c61

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AbCmeVhPe34Lk7nUr23mwDl:Qw+asqN5aW/hLlO3Lk7Ur23bl

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! Don't worry, you can return all your files! If you want to restore them, write to the mail: ronrivest@airmail.cc YOUR ID ronrivest@tuta.io Free decryption as guarantee Before paying you can send us up to 3 files for free decryption. The total size of files must be less than 3Mb (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

ronrivest@airmail.cc

ronrivest@tuta.io

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
  • 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.

  • 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\5c2fb1c42f007093be5e463f70ee7e7192990b3385a3cbcc71043980efa312e0.exe
    "C:\Users\Admin\AppData\Local\Temp\5c2fb1c42f007093be5e463f70ee7e7192990b3385a3cbcc71043980efa312e0.exe"
    1⤵
    • Modifies extensions of user files
    • 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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5036
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2536
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:3620
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1492
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1256
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3116
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2424
        • 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:5004
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:1796
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2332

          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

          1
          T1012

          System Information Discovery

          2
          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

            4KB

            MD5

            f78cc9e05d01536c748ec407ce9ee048

            SHA1

            8efb3806c7cf7cdca6921e747a918169c3077163

            SHA256

            bc68f558a15362e04d82e88c03e064d9bb2df8a48c298effa4efe4d270b09d81

            SHA512

            efa1956591f768005f8b6dfc5b194379158e302b5a6fb8216867659d1f0befadbd796150291370b807a479207995f6fab88b5839ea3e17ecf053cedaa504c499

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

            4KB

            MD5

            f78cc9e05d01536c748ec407ce9ee048

            SHA1

            8efb3806c7cf7cdca6921e747a918169c3077163

            SHA256

            bc68f558a15362e04d82e88c03e064d9bb2df8a48c298effa4efe4d270b09d81

            SHA512

            efa1956591f768005f8b6dfc5b194379158e302b5a6fb8216867659d1f0befadbd796150291370b807a479207995f6fab88b5839ea3e17ecf053cedaa504c499

            Download Submit
          • memory/1256-135-0x0000000000000000-mapping.dmp
            Download
          • memory/1492-134-0x0000000000000000-mapping.dmp
            Download
          • memory/1796-139-0x0000000000000000-mapping.dmp
            Download
          • memory/2424-137-0x0000000000000000-mapping.dmp
            Download
          • memory/2536-132-0x0000000000000000-mapping.dmp
            Download
          • memory/3116-136-0x0000000000000000-mapping.dmp
            Download
          • memory/3620-133-0x0000000000000000-mapping.dmp
            Download
          • memory/5004-138-0x0000000000000000-mapping.dmp
            Download