Analysis
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max time kernel
41s -
max time network
49s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
10-10-2024 04:18
Behavioral task
behavioral1
Sample
1.jar
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
1.jar
Resource
win7-20240903-en
Behavioral task
behavioral3
Sample
1.jar
Resource
win10-20240404-en
Behavioral task
behavioral4
Sample
1.jar
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
1.jar
Resource
win11-20241007-en
General
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Target
1.jar
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Size
1.1MB
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MD5
a5483a74a3cbf726d2ebf659247ec9c7
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SHA1
a9b28e22845934adff30ad44b293d714230344ea
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SHA256
37c49983dfd813e67d898b4088ea29e2146674aeba37059944db194a004dc2af
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SHA512
a651326628acade8adebeeec9c974d087f22cb8d868c98432c8f967ab4180c6beb7186c7b0b31e6428240017f360270d6ce90f31953c8fafe5dc4e5e0ecc9ad7
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SSDEEP
24576:dzhTX3kLlzYc4lMTboiqSr9xZXfRCUOutEUKIzWG:dzSLlUpSbYIn/Cl8zWG
Malware Config
Signatures
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Ratty Rat payload 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\1.jar family_ratty -
Drops startup file 1 IoCs
Processes:
java.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1.jar java.exe -
Loads dropped DLL 1 IoCs
Processes:
java.exepid process 2272 java.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
REG.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-160447019-1232603106-4168707212-1000\Software\Microsoft\Windows\CurrentVersion\Run\1.jar = "C:\\Users\\Admin\\AppData\\Roaming\\1.jar" REG.exe -
Modifies registry class 2 IoCs
Processes:
java.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance java.exe Key created \REGISTRY\USER\S-1-5-21-160447019-1232603106-4168707212-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance java.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
java.exepid process 2272 java.exe 2272 java.exe 2272 java.exe 2272 java.exe 2272 java.exe 2272 java.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
java.exedescription pid process target process PID 2272 wrote to memory of 1448 2272 java.exe icacls.exe PID 2272 wrote to memory of 1448 2272 java.exe icacls.exe PID 2272 wrote to memory of 3116 2272 java.exe REG.exe PID 2272 wrote to memory of 3116 2272 java.exe REG.exe PID 2272 wrote to memory of 4628 2272 java.exe attrib.exe PID 2272 wrote to memory of 4628 2272 java.exe attrib.exe PID 2272 wrote to memory of 784 2272 java.exe attrib.exe PID 2272 wrote to memory of 784 2272 java.exe attrib.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 4628 attrib.exe 784 attrib.exe
Processes
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C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\1.jar1⤵
- Drops startup file
- Loads dropped DLL
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2272 -
C:\Windows\system32\icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M2⤵
- Modifies file permissions
PID:1448
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C:\Windows\SYSTEM32\REG.exeREG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "1.jar" /d "C:\Users\Admin\AppData\Roaming\1.jar" /f2⤵
- Adds Run key to start application
- Modifies registry key
PID:3116
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C:\Windows\SYSTEM32\attrib.exeattrib +H C:\Users\Admin\AppData\Roaming\1.jar2⤵
- Views/modifies file attributes
PID:4628
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C:\Windows\SYSTEM32\attrib.exeattrib +H C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1.jar2⤵
- Views/modifies file attributes
PID:784
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46B
MD50dc29837762ce7c69028327797b9e48b
SHA1e7a8fda23da7c3811ddd44cc8182fcb9b5d367d0
SHA2568fe3758d5b82ecf0042f41e75e907959d0f7d7fde9a47e8b7122695fed7bc4c3
SHA512cfe93b1fcc85237a1a890b33384d26d0e119e8c5ef7b01cdbbc5c8fc0050991abd5dd0277b011144dad8838329deb7fe028d1a83f48f64c41b120ec33393b6f4
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Filesize
1.1MB
MD5a5483a74a3cbf726d2ebf659247ec9c7
SHA1a9b28e22845934adff30ad44b293d714230344ea
SHA25637c49983dfd813e67d898b4088ea29e2146674aeba37059944db194a004dc2af
SHA512a651326628acade8adebeeec9c974d087f22cb8d868c98432c8f967ab4180c6beb7186c7b0b31e6428240017f360270d6ce90f31953c8fafe5dc4e5e0ecc9ad7
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Filesize
83KB
MD555f4de7f270663b3dc712b8c9eed422a
SHA17432773eb4d09dc286d43fcc77ddb0e1e3bce2b4
SHA25647c2871dff8948de40424df497962ea6167c56bd4d487dd2e660aa2837485e25
SHA5129da5efb0236b3bb4ec72d07bfd70a9e3f373df95d97c825513babd43d2b91c8669e28f3464173e789dad092ea48fc8d32a9d11a6d5c8d9beeabd33860ce6a996