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
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-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:\ProgramData\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
  • 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\5c2fb1c42f007093be5e463f70ee7e7192990b3385a3cbcc71043980efa312e0.exe
    "C:\Users\Admin\AppData\Local\Temp\5c2fb1c42f007093be5e463f70ee7e7192990b3385a3cbcc71043980efa312e0.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:1112
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1768
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:668
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1056
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1244
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1720
        • 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:932
        • 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:1500
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1528

      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

        4KB

        MD5

        4905383fd14a58c7ef874fc09d87c041

        SHA1

        2e2c5b60d589941a1748108ef3c8acab572ce4b4

        SHA256

        7d87480a55c33f2fa5abcfbafc1045fa1483f80247cd1605d8e3b7d77883d521

        SHA512

        622738c8a64f63fad815303ce8fa40ce372b9da472934a556e8c450984a73724d1afd9a75134a5a9a7a5b59c6eb522d5761df7770ab91665c94d3b26fedeb183

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

        4KB

        MD5

        4905383fd14a58c7ef874fc09d87c041

        SHA1

        2e2c5b60d589941a1748108ef3c8acab572ce4b4

        SHA256

        7d87480a55c33f2fa5abcfbafc1045fa1483f80247cd1605d8e3b7d77883d521

        SHA512

        622738c8a64f63fad815303ce8fa40ce372b9da472934a556e8c450984a73724d1afd9a75134a5a9a7a5b59c6eb522d5761df7770ab91665c94d3b26fedeb183

        Download Submit
      • memory/668-57-0x0000000000000000-mapping.dmp
        Download
      • memory/932-63-0x000007FEFC2D1000-0x000007FEFC2D3000-memory.dmp
        Filesize

        8KB

        Download
      • memory/932-61-0x0000000000000000-mapping.dmp
        Download
      • memory/932-83-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp
        Filesize

        64KB

        Download
      • memory/1056-58-0x0000000000000000-mapping.dmp
        Download
      • memory/1112-54-0x00000000760D1000-0x00000000760D3000-memory.dmp
        Filesize

        8KB

        Download
      • memory/1244-59-0x0000000000000000-mapping.dmp
        Download
      • memory/1500-62-0x0000000000000000-mapping.dmp
        Download
      • memory/1720-60-0x0000000000000000-mapping.dmp
        Download
      • memory/1768-56-0x0000000000000000-mapping.dmp
        Download
      • memory/1788-55-0x0000000000000000-mapping.dmp
        Download