Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
04/03/2024, 01:08
Behavioral task
behavioral1
Sample
26934dec6c39f3b5fda01f315a3c36c78556ce61f3bde7dd3f3877d0dde11041.jar
Resource
win7-20240221-en
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
26934dec6c39f3b5fda01f315a3c36c78556ce61f3bde7dd3f3877d0dde11041.jar
Resource
win10v2004-20240226-en
6 signatures
150 seconds
General
- Target 26934dec6c39f3b5fda01f315a3c36c78556ce61f3bde7dd3f3877d0dde11041.jar
- Size 907KB
- Sample240304-bhp65sdf7s
- SHA256 26934dec6c39f3b5fda01f315a3c36c78556ce61f3bde7dd3f3877d0dde11041
- MD5 105f8a6a8ca49ac4e80c44c8d8233d76
- SHA1 2318563005c8438232087ff9d8e56901ab15f351
- SHA512 88514fc3f1f32ea8ebc7d01a700f6d7a7dc48464f90a6f91bfc570a6832a085b8d8b76c4882885466872ae9061042187c9e0cfe31dc87a733bb743db0ad39450
- SSDEEP 24576:i30YDu4J+Qg3avn6a4V6XHfaZhFnKR0ceubno1jR8L:i0cuk+Qgw6PV6XfmfwXeuU6
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation wscript.exe - Modifies file permissions 1 TTPs 1 IoCs
pid Process 3880 icacls.exe - Drops file in Program Files directory 24 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\ntdll.pdb javaw.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb javaw.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\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\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb javaw.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb javaw.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\server\symbols\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb javaw.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\ntdll.pdb java.exe 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\symbols\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb javaw.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\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\ntdll.pdb java.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4868 javaw.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 212 wrote to memory of 3880 212 java.exe 91 PID 212 wrote to memory of 3880 212 java.exe 91 PID 212 wrote to memory of 3884 212 java.exe 93 PID 212 wrote to memory of 3884 212 java.exe 93 PID 3884 wrote to memory of 4868 3884 wscript.exe 97 PID 3884 wrote to memory of 4868 3884 wscript.exe 97 PID 4868 wrote to memory of 884 4868 javaw.exe 98 PID 4868 wrote to memory of 884 4868 javaw.exe 98
Processes
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C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\26934dec6c39f3b5fda01f315a3c36c78556ce61f3bde7dd3f3877d0dde11041.jar1⤵
- Suspicious use of WriteProcessMemory
PID:212 -
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:3880
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C:\Windows\SYSTEM32\wscript.exewscript C:\Users\Admin\fvfvdvihbf.js2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3884 -
C:\Program Files\Java\jre-1.8\bin\javaw.exe"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\enxhcmkgoe.txt"3⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4868 -
C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar C:\Users\Admin\AppData\Local\Temp\_0.759747982961223747654369752713714.class4⤵
- Drops file in Program Files directory
PID:884
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
- Size 46B
- SHA256 050d5770da3d4e08ca1e92fdeea5bf13fd444d4c9a6f6e22b144765fad868025
- MD5 f25f4d8013e4447bb4958af5ca00f794
- SHA1 46202da6c11a16575c7cc20659d6ee4c1d9c876c
- SHA512 85bc4954804765282d9be3edcef105990368be8adae780d4b160dc5f403da294baf95284fbaa6a361ab061af286fe2d82476249d824bbf9850600c22435f6b78
- MD5 SHA1 SHA512
- Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
- Size 46B
- SHA256 6185000c7bf12a2f172d7d546310327074c569258ca7958ecd453de7a1e45bde
- MD5 b93626c8d9a46297418f4f0742a538e5
- SHA1 7d4cddefe10970a797eee0d09570c0a812eb024d
- SHA512 d26f5af85152d306cc57989d9f3aca881b091bf0d21b8dbaf1821e6fa0cb3efb066f0613ec7e685e12875840bb3134bc49e26d77fcbbc02fa9a77e7bb12729a4
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\_0.759747982961223747654369752713714.class
- Size 241KB
- SHA256 97d585b6aff62fb4e43e7e6a5f816dcd7a14be11a88b109a9ba9e8cd4c456eb9
- MD5 781fb531354d6f291f1ccab48da6d39f
- SHA1 9ce4518ebcb5be6d1f0b5477fa00c26860fe9a68
- SHA512 3e6630f5feb4a3eb1dac7e9125ce14b1a2a45d7415cf44cea42bc51b2a9aa37169ee4a4c36c888c8f2696e7d6e298e2ad7b2f4c22868aaa5948210eb7db220d8
- SSDEEP 6144:WI5pxUZ7Gvi8ulm+yV/rIF0/MO2qnan1J7pXESN6U:J5pxAGqNkrIq/MO2qnA
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-275798769-4264537674-1142822080-1000\83aa4cc77f591dfc2374580bbd95f6ba_8a5f3b39-6e68-4fc5-bbb1-a0dd77d899e9
- Size 45B
- SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
- MD5 c8366ae350e7019aefc9d1e6e6a498c6
- SHA1 5731d8a3e6568a5f2dfbbc87e3db9637df280b61
- SHA512 33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\enxhcmkgoe.txt
- Size 473KB
- SHA256 ad80dee52ee919b6cd939e9df62a4d48245739390490954163261c3230f105e7
- MD5 0602e8885233a881aea5d0737139e453
- SHA1 4cbdbec30863978d88e408d7c9087239be32488a
- SHA512 1072928c64bdaab970ea47bdf87983ff33ef3f47afebe214579690650cf95acccd4c0240e1dd3ea2f6e8c8578c740fc232e2cbca6b561e2a4b4d29b43feb1dc0
- SSDEEP 12288:sBgzjrepgDSRmU5pxogQNUhIK/0c2qnAI:sGbeqsmesS7B2qnn
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\fvfvdvihbf.js
- Size 3.5MB
- SHA256 4e23a2ee925d9f6a2a5fa575519f5053f1b079a836420adc387c99e4ef876bf8
- MD5 a7bb8d034dc73be8ac961ff7551b344f
- SHA1 7e9e1bf4ebd2a66d36a2bdd4ae6e581854ee60fd
- SHA512 f3e75dea584563aa0eec6a74419d45cb299b68ef0d85fef46316ab948210ae08b53e30c28e8a81a1510acf003bde99ace68e7646eddaf4489bfbbd12e6b347e5
- SSDEEP 6144:DQTJ1BPxv2RfxI0V1ZX/BscEa9DPO97/OYkddbrUuq3w8nfjGz:k8
- MD5 SHA1 SHA512 SSDEEP