Overview

overview

10

Static

static

3

Rack/023f6...10.exe

windows7-x64

10

Rack/023f6...10.exe

windows10-2004-x64

10

Rack/311d0...c2.exe

windows7-x64

9

Rack/311d0...c2.exe

windows10-2004-x64

9

Rack/47f84...1f.exe

windows7-x64

9

Rack/47f84...1f.exe

windows10-2004-x64

3

Rack/5578d...e5.exe

windows7-x64

9

Rack/5578d...e5.exe

windows10-2004-x64

9

Rack/5606c...56.exe

windows7-x64

Rack/5606c...56.exe

windows10-2004-x64

Rack/62354...c9.exe

windows7-x64

10

Rack/62354...c9.exe

windows10-2004-x64

5

Rack/666a3...e6.exe

windows7-x64

10

Rack/666a3...e6.exe

windows10-2004-x64

10

Rack/6a08b...68.exe

windows7-x64

5

Rack/6a08b...68.exe

windows10-2004-x64

5

Rack/73809...4e.exe

windows7-x64

10

Rack/73809...4e.exe

windows10-2004-x64

10

Rack/849eb...7c.exe

windows7-x64

Rack/849eb...7c.exe

windows10-2004-x64

Rack/8afc5...7e.exe

windows7-x64

9

Rack/8afc5...7e.exe

windows10-2004-x64

3

Rack/d4d53...91.exe

windows7-x64

10

Rack/d4d53...91.exe

windows10-2004-x64

10

Rack/e4ea7...8a.exe

windows7-x64

9

Rack/e4ea7...8a.exe

windows10-2004-x64

5

Rack/e5876...5c.exe

windows7-x64

9

Rack/e5876...5c.exe

windows10-2004-x64

3

Rack/e98b1...8d.exe

windows7-x64

10

Rack/e98b1...8d.exe

windows10-2004-x64

10

Rack/fc330...dd.exe

windows7-x64

9

Rack/fc330...dd.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-11-2024 23:52

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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:\Users\Admin\AppData\Roaming\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 A31DAAD2 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 (310) 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:2720
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2712
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2640
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:672
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:408
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2488
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1044
        • 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:2012
        • 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:3008
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2652

      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-A31DAAD2.[[email protected]].bot
        Filesize

        23.5MB

        MD5

        047e56394e1f04846e8b911dcb5df9e3

        SHA1

        f2cc27b84a2eedc102c06150a8e351bfaea2e6b5

        SHA256

        721e189b6094c570cd1b19733ce45a6ec274879d3a1f59e715b4aa9320d486bf

        SHA512

        8ed24c872a449e2aa339ee41e9f978e1d69dc96fc5a1b2b991765e773b707c7b1f180e44233165375461e1b62b5a7aaa34c36032c8ace683530b1cb0296169d3

        Download Submit

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

        13KB

        MD5

        11e122377790414af4215f3fd067f094

        SHA1

        d6e359565a71ac64c4e282f00832b9ae577356cd

        SHA256

        dd3f670d6c5e8953c14991a024512dfe35197c31fa4b77cd16b2d5027fe6504c

        SHA512

        a55dc72d2d936a9d8ac4b30ab044d5f49eae0463c88609c6f823eaf2265c3200fd8aa5879f526aa7a00aba943fd8b9362b7af45bf789ce3706d02ca30353ccbe

        Download Submit

      • memory/2012-20387-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

        Download

      • memory/2720-0-0x0000000000400000-0x00000000005EB000-memory.dmp

        Filesize

        1.9MB

        Download

      • memory/2720-2-0x0000000000680000-0x0000000000780000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/2720-3-0x0000000000220000-0x0000000000239000-memory.dmp

        Filesize

        100KB

        Download

      • memory/2720-4-0x0000000000400000-0x0000000000419000-memory.dmp

        Filesize

        100KB

        Download

      • memory/2720-3607-0x0000000000680000-0x0000000000780000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/2720-5550-0x0000000000220000-0x0000000000239000-memory.dmp

        Filesize

        100KB

        Download

      • memory/2720-6292-0x0000000000400000-0x00000000005EB000-memory.dmp

        Filesize

        1.9MB

        Download

      • memory/2720-6369-0x0000000000400000-0x0000000000419000-memory.dmp

        Filesize

        100KB

        Download