Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    05/10/2024, 14:33

General

  • Target
    185.jar
  • Size 14.5MB
  • Sample241005-rxab8szcle
  • SHA256 287e892aeb4be05c881e19da227d0398cd321d5a9af837932c12dfaab641b4cb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Dynamic RAT payload 1 IoCs
  • DynamicRat

    DynamicRat is a remote access trojan malware written in Java.

  • Drops startup file 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\185.jar
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1260
    • C:\Windows\system32\icacls.exe
      C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
      2⤵
      • Modifies file permissions
      PID:1916
    • C:\Program Files\Java\jre-1.8\bin\javaw.exe
      "C:\Program Files\Java\jre-1.8\bin\javaw" -jar "C:\Users\Admin\AppData\Local\Temp\m17281388413128031215267446672284.tmp" DELAY:3
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4492
      • C:\Windows\SYSTEM32\netsh.exe
        netsh wlan show networks mode=bssid
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        PID:4308
      • C:\Windows\SYSTEM32\netsh.exe
        netsh wlan show networks mode=bssid
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        PID:2072

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        3903daac9bc4a3b7.timestamp

        • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
        • Size 46B
        • SHA256 ec99091cc62229be41654917f84562e22fa1c467402f1e1c8670ecb3014b4e67
        • MD5 SHA1 SHA512

        m17281388413128031215267446672284.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\m17281388413128031215267446672284.tmp
        • Size 13.9MB
        • SHA256 cc1f7f46569c47b6aaf3000374073e30f92350b876d69bc02771664fa5212014
        • MD5 SHA1 SHA512 SSDEEP

        83aa4cc77f591dfc2374580bbd95f6ba_f4fe33a0-f73d-4d5c-8730-deeef20ef238

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3968772205-1713802336-1776639840-1000\83aa4cc77f591dfc2374580bbd95f6ba_f4fe33a0-f73d-4d5c-8730-deeef20ef238
        • Size 45B
        • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
        • MD5 SHA1 SHA512

        JNativeHook-385777659FA84E94A3812EB9A8AFAD27AE3CEED4.x86_64.dll

        • Path \Users\Admin\AppData\Local\Temp\JNativeHook-385777659FA84E94A3812EB9A8AFAD27AE3CEED4.x86_64.dll
        • Size 80KB
        • SHA256 b8c331c9f915960201da9af9c9dc8309e95e7d533741e71f4a5d13ca007d3e18
        • MD5 SHA1 SHA512 SSDEEP

        jna7415733984974618982.dll

        • Path \Users\Admin\AppData\Local\Temp\jna-63116079\jna7415733984974618982.dll
        • Size 248KB
        • SHA256 3d1b2427b45ff5178bbb4db395758bedd3a1e91121ebb3e3640b5c4e20eb22cc
        • MD5 SHA1 SHA512 SSDEEP

        memory/1260-98-0x000001D00B6E0000-0x000001D00B6F0000-memory.dmp

        memory/1260-99-0x000001D00B780000-0x000001D00B790000-memory.dmp

        memory/1260-20-0x000001D00B610000-0x000001D00B620000-memory.dmp

        memory/1260-22-0x000001D00B620000-0x000001D00B630000-memory.dmp

        memory/1260-24-0x000001D00B630000-0x000001D00B640000-memory.dmp

        memory/1260-26-0x000001D00B640000-0x000001D00B650000-memory.dmp

        memory/1260-29-0x000001D00B650000-0x000001D00B660000-memory.dmp

        memory/1260-30-0x000001D00B660000-0x000001D00B670000-memory.dmp

        memory/1260-32-0x000001D00B670000-0x000001D00B680000-memory.dmp

        memory/1260-34-0x000001D00B680000-0x000001D00B690000-memory.dmp

        memory/1260-39-0x000001D00B390000-0x000001D00B600000-memory.dmp

        memory/1260-44-0x000001D00B600000-0x000001D00B610000-memory.dmp

        memory/1260-43-0x000001D00B6A0000-0x000001D00B6B0000-memory.dmp

        memory/1260-42-0x000001D00B6C0000-0x000001D00B6D0000-memory.dmp

        memory/1260-41-0x000001D00B6B0000-0x000001D00B6C0000-memory.dmp

        memory/1260-40-0x000001D00B690000-0x000001D00B6A0000-memory.dmp

        memory/1260-48-0x000001D00B6D0000-0x000001D00B6E0000-memory.dmp

        memory/1260-134-0x000001D00B700000-0x000001D00B710000-memory.dmp

        memory/1260-50-0x000001D00B6E0000-0x000001D00B6F0000-memory.dmp

        memory/1260-49-0x000001D00B620000-0x000001D00B630000-memory.dmp

        memory/1260-53-0x000001D00B6F0000-0x000001D00B700000-memory.dmp

        memory/1260-52-0x000001D00B630000-0x000001D00B640000-memory.dmp

        memory/1260-56-0x000001D00B700000-0x000001D00B710000-memory.dmp

        memory/1260-55-0x000001D00B640000-0x000001D00B650000-memory.dmp

        memory/1260-60-0x000001D00B710000-0x000001D00B720000-memory.dmp

        memory/1260-59-0x000001D00B650000-0x000001D00B660000-memory.dmp

        memory/1260-63-0x000001D00B660000-0x000001D00B670000-memory.dmp

        memory/1260-64-0x000001D00B720000-0x000001D00B730000-memory.dmp

        memory/1260-67-0x000001D00B730000-0x000001D00B740000-memory.dmp

        memory/1260-66-0x000001D00B670000-0x000001D00B680000-memory.dmp

        memory/1260-71-0x000001D00B740000-0x000001D00B750000-memory.dmp

        memory/1260-70-0x000001D00B680000-0x000001D00B690000-memory.dmp

        memory/1260-78-0x000001D00B750000-0x000001D00B760000-memory.dmp

        memory/1260-77-0x000001D00B6C0000-0x000001D00B6D0000-memory.dmp

        memory/1260-76-0x000001D00B6B0000-0x000001D00B6C0000-memory.dmp

        memory/1260-75-0x000001D00B690000-0x000001D00B6A0000-memory.dmp

        memory/1260-83-0x000001D00B760000-0x000001D00B770000-memory.dmp

        memory/1260-82-0x000001D00B6A0000-0x000001D00B6B0000-memory.dmp

        memory/1260-89-0x000001D00B6D0000-0x000001D00B6E0000-memory.dmp

        memory/1260-90-0x000001D00B770000-0x000001D00B780000-memory.dmp

        memory/1260-133-0x000001D00B370000-0x000001D00B371000-memory.dmp

        memory/1260-16-0x000001D00B370000-0x000001D00B371000-memory.dmp

        memory/1260-18-0x000001D00B600000-0x000001D00B610000-memory.dmp

        memory/1260-105-0x000001D00B6F0000-0x000001D00B700000-memory.dmp

        memory/1260-47-0x000001D00B610000-0x000001D00B620000-memory.dmp

        memory/1260-2-0x000001D00B390000-0x000001D00B600000-memory.dmp

        memory/1260-160-0x000001D00B780000-0x000001D00B790000-memory.dmp

        memory/1260-159-0x000001D00B770000-0x000001D00B780000-memory.dmp

        memory/1260-136-0x000001D00B6A0000-0x000001D00B6B0000-memory.dmp

        memory/1260-137-0x000001D00B600000-0x000001D00B610000-memory.dmp

        memory/1260-138-0x000001D00B610000-0x000001D00B620000-memory.dmp

        memory/1260-139-0x000001D00B620000-0x000001D00B630000-memory.dmp

        memory/1260-140-0x000001D00B630000-0x000001D00B640000-memory.dmp

        memory/1260-141-0x000001D00B640000-0x000001D00B650000-memory.dmp

        memory/1260-142-0x000001D00B650000-0x000001D00B660000-memory.dmp

        memory/1260-143-0x000001D00B660000-0x000001D00B670000-memory.dmp

        memory/1260-144-0x000001D00B670000-0x000001D00B680000-memory.dmp

        memory/1260-145-0x000001D00B680000-0x000001D00B690000-memory.dmp

        memory/1260-146-0x000001D00B690000-0x000001D00B6A0000-memory.dmp

        memory/1260-147-0x000001D00B6B0000-0x000001D00B6C0000-memory.dmp

        memory/1260-148-0x000001D00B6C0000-0x000001D00B6D0000-memory.dmp

        memory/1260-149-0x000001D00B390000-0x000001D00B600000-memory.dmp

        memory/1260-150-0x000001D00B6D0000-0x000001D00B6E0000-memory.dmp

        memory/1260-151-0x000001D00B6E0000-0x000001D00B6F0000-memory.dmp

        memory/1260-152-0x000001D00B6F0000-0x000001D00B700000-memory.dmp

        memory/1260-153-0x000001D00B710000-0x000001D00B720000-memory.dmp

        memory/1260-154-0x000001D00B720000-0x000001D00B730000-memory.dmp

        memory/1260-155-0x000001D00B730000-0x000001D00B740000-memory.dmp

        memory/1260-156-0x000001D00B740000-0x000001D00B750000-memory.dmp

        memory/1260-157-0x000001D00B750000-0x000001D00B760000-memory.dmp

        memory/1260-158-0x000001D00B760000-0x000001D00B770000-memory.dmp

        memory/4492-222-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-224-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-108-0x000001DF39BC0000-0x000001DF39E30000-memory.dmp

        memory/4492-187-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-193-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-207-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-115-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-221-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-236-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-135-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-240-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-241-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-244-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-242-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-251-0x000001DF382D0000-0x000001DF382D1000-memory.dmp

        memory/4492-314-0x000001DF39BC0000-0x000001DF39E30000-memory.dmp