Overview

overview

10

Static

static

3

2024-09-05...ma.exe

windows7-x64

10

2024-09-05...ma.exe

windows10-2004-x64

10

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
    05-09-2024 14:29

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General

  • Target

    2024-09-05_f25b8c72c61c734bbf4ee7cbffda3d48_crysis_dharma.exe

  • Size

    92KB

  • MD5

    f25b8c72c61c734bbf4ee7cbffda3d48

  • SHA1

    5b725dbebfd73c95067cc40c904dd981a5f1ce22

  • SHA256

    ce371f9f9c2446ca5d84e5df4bd8562247c198310b81e577fa4afc2398795438

  • SHA512

    e63183995e9e3950790266f71130fcabe3d4e9d7e270b1f72116323e16f31a6f51a4d96d268dbc1fdc3ad2375ad20e7dc0b1572a5a7bedb54209afc3dcb7d8d8

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4A5qERXCE5uodtYr2I41:Qw+asqN5aW/hLn9Ry6bC2f1

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! Don't worry, you can return all your files! If you want to restore them, write to the mail: [email protected] YOUR ID [email protected] 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 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
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (312) 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 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
  • 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\2024-09-05_f25b8c72c61c734bbf4ee7cbffda3d48_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_f25b8c72c61c734bbf4ee7cbffda3d48_crysis_dharma.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:2236
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2080
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2812
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2652
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2588
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1740
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2452
        • 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:3200
        • 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:3180
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1484

      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-8F3ED047.[[email protected]].ior
        Filesize

        23.5MB

        MD5

        5075e35becd0ffdd190420b1bd4c8710

        SHA1

        fd30e6e4a95f62ff6801d07e163ba6c599c1aa66

        SHA256

        33e12563928b6bf0dbb1883374b615e140f432cbe3c6dea2c213f6a5f016e09c

        SHA512

        2295938a51ec7959634219b97ba63d8a2884e8f0b2a4c2aef1b3d977e744b05f794286f98660356064e2b79d8222da2ba92fdeb9d51591070ecc5db92158923e

        Download Submit

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

        4KB

        MD5

        13df655621f9ea8e47f4bd0179085aac

        SHA1

        358fff0ff4d6becbb945a1016189306498b73b02

        SHA256

        81eb09dd8d99a583334fcbf065a8a2ad8c5cfd74f7b7c86ba3c43b383902af01

        SHA512

        c57687e2b33a9ae5cb3db01715fb4d5b31912e3099c619dbae40c17f2db6dd9d39c9e9f6e15991f94fde4323202e22c828b4be4a1c6e73c2b4fca8f65537aa0c

        Download Submit

      • memory/3180-20307-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

        Download