Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
29-03-2024 02:39
Static task
static1
Behavioral task
behavioral1
Sample
ca438598c383fab834c5e52369032e30c657f8f70cbb095f181ea7779d34bba1.jar
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
ca438598c383fab834c5e52369032e30c657f8f70cbb095f181ea7779d34bba1.jar
Resource
win10v2004-20240226-en
General
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Target
ca438598c383fab834c5e52369032e30c657f8f70cbb095f181ea7779d34bba1.jar
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Size
395KB
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MD5
81e621517a407ae36da0a767b960c88c
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SHA1
421f3489d10b803e2dd64d0b47ce619da2da448a
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SHA256
ca438598c383fab834c5e52369032e30c657f8f70cbb095f181ea7779d34bba1
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SHA512
cd0510723447c5ace63f4ec9eb1aa0aa7d9d56b70f08b16c92c71b9825351122e59c1b5173e1e7288f59a8d732be122e90be397521f80e71328d743ad172788c
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SSDEEP
192:WtZ3hAJtjmbwOqaI55LEOkOYiDiMkCjvDhvLlSIz3v4M3LwsUE+1MB7hikCOrPiH:cZ3hOOJvsEOWGWCjvSmwM7wsTvQMC
Malware Config
Signatures
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Modifies file permissions 1 TTPs 1 IoCs
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Drops file in Program Files directory 12 IoCs
Processes:
java.exedescription ioc process File opened for modification C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb java.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
java.exedescription pid process target process PID 1704 wrote to memory of 4912 1704 java.exe icacls.exe PID 1704 wrote to memory of 4912 1704 java.exe icacls.exe
Processes
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C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\ca438598c383fab834c5e52369032e30c657f8f70cbb095f181ea7779d34bba1.jar1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1704 -
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:4912
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46B
MD5c075fc57076f657521baefee534fce69
SHA115e0a94bd7cde28489126eb5119aa4b4ad60ee0a
SHA256677112ea08146a65128ebe5f5d2351563d660d19122ec46addd00792e335a35b
SHA5125659d1daeab0cf166cbb9a9cb20ee7e5b1a8c5f34d40cf312789c88785f4cc331386b173f2108b178d94f80fb683d189b0fea2c5cc7c70e1b3c1825fb1cfe9d7