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
    150s
  • max time network
    127s
  • 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/73809e9329c76c069035ac65dd9645c87aee3459a0f62b0fab1a640b56b6a34e.exe

  • Size

    271KB

  • MD5

    9edb93f2c5f92e7b1a664c266347ad0b

  • SHA1

    f50e7db97b67da6686ec113d3d7a82aac1c647b4

  • SHA256

    73809e9329c76c069035ac65dd9645c87aee3459a0f62b0fab1a640b56b6a34e

  • SHA512

    437afb8757696a05165c0df8a3c99e22ba9c9d213ad03a8f9153562669abb42cb9e57e15907073e2a3d7f0e4f3d3ff6ca7fe16bf2168c3f1b36993849b2d09d0

  • SSDEEP

    6144:v0OiXvUOgT5UIp9+QF+wGonORR77vF70q2T:FifIpFiALT

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 2B68A0A0 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 (314) 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\73809e9329c76c069035ac65dd9645c87aee3459a0f62b0fab1a640b56b6a34e.exe
    "C:\Users\Admin\AppData\Local\Temp\Rack\73809e9329c76c069035ac65dd9645c87aee3459a0f62b0fab1a640b56b6a34e.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:2148
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2872
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2560
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2072
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2812
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2160
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3392
        • 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:2120
        • 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:2980
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:572

      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\OWOW64WW.cab.id-2B68A0A0.[[email protected]].bot
        Filesize

        23.5MB

        MD5

        20cac6cae3b8206b33210138851de233

        SHA1

        30de41377641f8418e6ca83c9c89daa2337c61fb

        SHA256

        deb7dac1b2db05de3d9284a928ae418c226927581a49e9db24a5a5e61af77ddb

        SHA512

        6098d45f66a96649853e033346551b26d7e5eae9b016c8af1dd82ffec63bff4a5c3b0feb3265a32d5474e940e1501474d52d09de9588807372b55f14bd272fbb

        Download Submit

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

        13KB

        MD5

        ed3ddbb803cacf3ceeea9b82119a3f16

        SHA1

        4026b9d2c6f148eb72764abc565d8347343bd667

        SHA256

        0f6393f296c3095276abc65a7155f8edd7b8cc2de8f9a3a7cdd1c396034b86e6

        SHA512

        72dc628926fb8f46fcfd2cd7fc97a074fdd0c6a8ba16ecdeaa693fa9a20ef227d8a0497f82f816b7e70b30027d213b578e192febaa0d2fd84f03cd3826fb1851

        Download Submit

      • memory/2148-0-0x0000000000400000-0x00000000005EB000-memory.dmp

        Filesize

        1.9MB

        Download

      • memory/2148-4-0x0000000000400000-0x0000000000419000-memory.dmp

        Filesize

        100KB

        Download

      • memory/2148-3-0x0000000000220000-0x0000000000239000-memory.dmp

        Filesize

        100KB

        Download

      • memory/2148-2-0x0000000000A30000-0x0000000000B30000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/2148-5143-0x0000000000A30000-0x0000000000B30000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/2148-6462-0x0000000000400000-0x00000000005EB000-memory.dmp

        Filesize

        1.9MB

        Download

      • memory/2148-6465-0x0000000000400000-0x0000000000419000-memory.dmp

        Filesize

        100KB

        Download

      • memory/2980-20352-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

        Download