Overview

overview

10

Static

static

3

Rack/023f6...10.exe

windows7-x64

10

Rack/311d0...c2.exe

windows7-x64

9

Rack/47f84...1f.exe

windows7-x64

9

Rack/5578d...e5.exe

windows7-x64

9

Rack/5606c...56.exe

windows7-x64

Rack/62354...c9.exe

windows7-x64

10

Rack/666a3...e6.exe

windows7-x64

10

Rack/6a08b...68.exe

windows7-x64

5

Rack/73809...4e.exe

windows7-x64

10

Rack/849eb...7c.exe

windows7-x64

Rack/8afc5...7e.exe

windows7-x64

9

Rack/d4d53...91.exe

windows7-x64

10

Rack/e4ea7...8a.exe

windows7-x64

9

Rack/e5876...5c.exe

windows7-x64

9

Rack/e98b1...8d.exe

windows7-x64

10

Rack/fc330...dd.exe

windows7-x64

9

Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-11-2024 23:49

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General

  • Target

    Rack/e98b1768aa5636c335985669c52319f9226089f9298dd5f9840c062bf8dcd18d.exe

  • Size

    300KB

  • MD5

    26bf7c2ab048094e9a0c15368d1105ba

  • SHA1

    b0946dd6abcab1fddc71e2308ffb4587e094b03d

  • SHA256

    e98b1768aa5636c335985669c52319f9226089f9298dd5f9840c062bf8dcd18d

  • SHA512

    437746ac926442d99cd9fa1164749a7a798be780e21ef42d14b4cb55ff8109eae296da5d74df924bc78c8ce2dc78b867dde032c297461dbebb4df2f728e6148f

  • SSDEEP

    6144:T6ckSlQncoC4x/B5eRc6w/QPgDEC0NpW6AvJF55yFW6:T6RPncohxf/YqECCzMRm

Score
10/10
dharmacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\ProgramData\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 [email protected] Write this ID in the title of your message 7BF9B055 In case of no answer in 24 hours write us to theese e-mails: [email protected] 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.

Signatures

  • Dharma

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

    ransomwaredharma
  • Dharma family
    dharma
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (311) files with added filename extension

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

    ransomware
  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Drops startup file 5 IoCs
  • Reads user/profile data of web browsers 3 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Interacts with shadow copies 3 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\Rack\e98b1768aa5636c335985669c52319f9226089f9298dd5f9840c062bf8dcd18d.exe
    "C:\Users\Admin\AppData\Local\Temp\Rack\e98b1768aa5636c335985669c52319f9226089f9298dd5f9840c062bf8dcd18d.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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2716
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2956
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:924
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:952
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1984
        • 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:1396
        • 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:2044
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1072

      Network

      MITRE ATT&CK Enterprise v15

      Reconnaissance

      Resource Development

      Initial Access

      Execution

      Windows Management Instrumentation

      1
      T1047

      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

      Direct Volume Access

      1
      T1006

      Indicator Removal

      2
      T1070

      File Deletion

      2
      T1070.004

      Modify Registry

      2
      T1112

      Credential Access

      Credentials from Password Stores

      2
      T1555

      Credentials from Web Browsers

      1
      T1555.003

      Windows Credential Manager

      1
      T1555.004

      Unsecured Credentials

      1
      T1552

      Credentials In Files

      1
      T1552.001

      Discovery

      Browser Information Discovery

      1
      T1217

      System Information Discovery

      1
      T1082

      System Location Discovery

      1
      T1614

      System Language Discovery

      1
      T1614.001

      Lateral Movement

      Collection

      Data from Local System

      1
      T1005

      Command and Control

      Exfiltration

      Impact

      Inhibit System Recovery

      2
      T1490

      Replay Monitor

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPlusWW.msi.id-7BF9B055.[[email protected]].money
        Filesize

        24.4MB

        MD5

        ad53e928630dd0e6e014c7d8e7dd8d04

        SHA1

        b01a2d3fb7d7a7fd0692c46d1f762e0243a46eff

        SHA256

        b6f8dc6f4622890d2f8da73c4594eae4d1da19dd0fba37b00a2bd52440db8378

        SHA512

        d98732df8c10e18ab697cff6a57528845697c4ae0d06fcfa934a7697f768d3b61e369c8a445edda87d0511cc6d0e67e5a9717c4e76f5437b42380771043b0da3

        Download Submit

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

        13KB

        MD5

        83336b7ba293f8f365da3bd1b5de1f93

        SHA1

        4186b33aa75d76c482aa9363bb193426098e2d4b

        SHA256

        81e97d826b5eeb3d312d5966aa3801c0841a10694221a1c4bba4775221136aaf

        SHA512

        03653e0d3127526aeb96ab424e9de25e007414268ffc62cf5a3de34d49cba57bb7ce225f71c2185a72839e04879ff868bfd4abc48e1aa5ace90c64e2afd6b36b

        Download Submit

      • memory/1396-20325-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

        Download

      • memory/3016-1-0x0000000000290000-0x0000000000390000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/3016-2-0x00000000001B0000-0x00000000001C9000-memory.dmp

        Filesize

        100KB

        Download

      • memory/3016-3-0x0000000000400000-0x0000000000419000-memory.dmp

        Filesize

        100KB

        Download

      • memory/3016-3659-0x0000000000290000-0x0000000000390000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/3016-5817-0x00000000001B0000-0x00000000001C9000-memory.dmp

        Filesize

        100KB

        Download

      • memory/3016-6691-0x0000000000400000-0x00000000005FB000-memory.dmp

        Filesize

        2.0MB

        Download