Overview

overview

10

Static

static

3

553532c3bc...2d.exe

windows11-21h2-x64

10

Resubmissions

14-02-2024 03:46

240214-ebskgagb2t 10

14-02-2024 03:40

240214-d8m6kshc42 10

14-02-2024 03:37

240214-d6vgwafh5v 10

11-09-2020 08:09

200911-rexcktjp1n 10

Analysis

  • max time kernel
    150s
  • max time network
    90s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231222-en
  • resource tags

    arch:x64arch:x86image:win11-20231222-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    14-02-2024 03:37

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General

  • Target

    553532c3bc00e3b85bcbac054bc4f05cb4fffba6f44a17c663dd37732ce1772d.exe

  • Size

    92KB

  • MD5

    b075d1e9bc442a09f38d91133cd8c900

  • SHA1

    8829d9ce9067abb421df21c24b31b5e0ffbf5ca6

  • SHA256

    553532c3bc00e3b85bcbac054bc4f05cb4fffba6f44a17c663dd37732ce1772d

  • SHA512

    047d0a3535b33e5058f14c4dee97434278327cd9ffe93b373f23ebbf8e5d02374a5af3526050fd78a1758ef67e95d24b403c5393a1cd9036302ae7eed5705957

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AsVMbXwOstfc/EqcKBxAvhzvcR:Qw+asqN5aW/hLbwOstcMqckeK

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
YOUR FILES ARE ENCRYPTED Don't worry,you can return all your files! If you want to restore them, follow this link: email backmydata@protonmail.com YOUR ID If you have not been answered via the link within 12 hours, write to us by e-mail: backmydata@airmail.cc 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

backmydata@protonmail.com

backmydata@airmail.cc

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
  • Renames multiple (541) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    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).

  • 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
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\553532c3bc00e3b85bcbac054bc4f05cb4fffba6f44a17c663dd37732ce1772d.exe
    "C:\Users\Admin\AppData\Local\Temp\553532c3bc00e3b85bcbac054bc4f05cb4fffba6f44a17c663dd37732ce1772d.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:3396
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1560
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1580
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1112
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:6444
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:8476
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:8508
        • 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:1644
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:2452
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:8100

          Network

          MITRE ATT&CK Matrix ATT&CK v13

          Initial Access

          Execution

          Persistence

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Privilege Escalation

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Defense Evasion

          Indicator Removal

          2
          T1070

          File Deletion

          2
          T1070.004

          Modify Registry

          1
          T1112

          Credential Access

          Unsecured Credentials

          1
          T1552

          Credentials In Files

          1
          T1552.001

          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

          Resource Development

          Reconnaissance

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Program Files\7-Zip\7z.dll.id-A2D994CC.[backmydata@protonmail.com].bmd
            Filesize

            2.5MB

            MD5

            6728f4bbcd37b97b7079a8cfd40ca60d

            SHA1

            d48549e8381d000e0f0af78e25705b24a73095fc

            SHA256

            8943e16f965d5b769c4d401ef5c50ee7d0369813a1bdb952070f60744f8b6efc

            SHA512

            1a3723006e5b39f9f53c858027c05125bebfd6c1f9b377bebdcccb5c339d98e3e78b47e8e57e32acfcf0f86447968d46e2acc704d785442ed24feea2ac3851ba

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

            7KB

            MD5

            ed0a7f405837d8ad587ae1d042da180b

            SHA1

            9aaf41e21d5f7b8f54d9cdb15b6ff2a9220bbc68

            SHA256

            1b2936f81cf0d95bf13af0d5949c28188629132acc3b02df87436105b2868797

            SHA512

            04c451fb61303f535258b24ebf45d177b33c00c7870032eebfe5cf5abf383a4aad24110ac215f76e5c03d75523e951ee8160bfdebeebc926b64d27c9ca0d4a64

            Download Submit