Overview

overview

10

Static

static

1

bd210c5759...f1.exe

windows7-x64

10

bd210c5759...f1.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    29s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    23-02-2023 01:12

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General

  • Target

    bd210c5759b815a64b7166aceae471ef622bccdde3b46fc971aa78bcb73f08f1.exe

  • Size

    92KB

  • MD5

    3797a1dd86bf2e8879d02cfc7c9fa601

  • SHA1

    3df9dc4e19b52e449708bcddc3939ce662b69674

  • SHA256

    bd210c5759b815a64b7166aceae471ef622bccdde3b46fc971aa78bcb73f08f1

  • SHA512

    2970ffaca52a5776187120edb2cb8e6556ee8e052a4efe79c2d7d91a3e83c28a892266b271bfc22c1a9ab043ea9749bf76715453bdbe14167a13d3b54a84c82b

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4A6CJyQHFEH1OKZ3StXZsGXxq7y4PX:Qw+asqN5aW/hLoCJy6qV5ZigGhWP

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 (roneast@tuta.io) YOUR ID ronivest@tutanota.com ------------------------------------------------------------------------------------------------------- https://tox.chat/download.html 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

roneast@tuta.io

ronivest@tutanota.com
URLs

https://tox.chat/download.html

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
  • 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\bd210c5759b815a64b7166aceae471ef622bccdde3b46fc971aa78bcb73f08f1.exe
    "C:\Users\Admin\AppData\Local\Temp\bd210c5759b815a64b7166aceae471ef622bccdde3b46fc971aa78bcb73f08f1.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:1960
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1632
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:840
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1100
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1444
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2076
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1576
        • 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:2064
        • 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:2084
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2012

      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:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\osetup.dll.id-B6DB2580.[jerd@420blaze.it].jron
        Filesize

        6.3MB

        MD5

        8e922996e78716408b4d658b43398d29

        SHA1

        274c03bf9a1840330291e6d9c0858b5f730322c7

        SHA256

        44844de843dd3ad23101829076748be8d93bc463a992dabcb5b95a73947672e4

        SHA512

        87d5f573e35fdd57dbbfaf41c2c53cc7d0dbf9551e7dd3d97bf1177f4e23c412d1e6c3a0e3f7c2c0f89a19001b31111800e60e1c32acfda037bda8bc0e14620c

        Download Submit
      • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        Filesize

        4KB

        MD5

        40354a67b201beee5d08e8138cf6fdd8

        SHA1

        a6cd4a696b6a989c59b5e886e36869e9886bb95a

        SHA256

        84d64c20e7284010cf7bc1eb45b0b3db461502e20607c2dfe1c942c0a0465a63

        SHA512

        a01912b238d1d23eea8f703396c4cb4b8af6afc6ce1993b13b7f0cc007fc2c926dc9bef73a714c8010b2a09bc407a309356e28bd64814867a3e2320698b81e5a

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

        4KB

        MD5

        40354a67b201beee5d08e8138cf6fdd8

        SHA1

        a6cd4a696b6a989c59b5e886e36869e9886bb95a

        SHA256

        84d64c20e7284010cf7bc1eb45b0b3db461502e20607c2dfe1c942c0a0465a63

        SHA512

        a01912b238d1d23eea8f703396c4cb4b8af6afc6ce1993b13b7f0cc007fc2c926dc9bef73a714c8010b2a09bc407a309356e28bd64814867a3e2320698b81e5a

        Download Submit
      • memory/2084-20129-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp
        Filesize

        64KB

        Download