Analysis
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max time kernel
45s -
max time network
48s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
24-07-2022 21:00
Static task
static1
Behavioral task
behavioral1
Sample
7fa5005bf0dbb8f5adf91a73a0fbc621d7454eafc332a2ba6603ec3b952023ab.jar
Resource
win7-20220718-en
General
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Target
7fa5005bf0dbb8f5adf91a73a0fbc621d7454eafc332a2ba6603ec3b952023ab.jar
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Size
491KB
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MD5
4474bc61bf953b901d8b44226af84b16
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SHA1
c3a7e9f2d62c47a0faee138f347377b45563e72e
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SHA256
7fa5005bf0dbb8f5adf91a73a0fbc621d7454eafc332a2ba6603ec3b952023ab
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SHA512
536d2d61cba2215ea1395b64c2b9dbe616166d607f066b781f814d8750ee2ebc6a25caae8f5cc4411d35f44185fe7f09c932586a89d42f571e6bdd68b859842f
Malware Config
Signatures
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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\jre1.8.0_66\bin\server\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\symbols\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\symbols\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\symbols\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\symbols\dll\ntdll.pdb java.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
java.exejava.exepid Process 3532 java.exe 3532 java.exe 4488 java.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
java.exejava.execmd.exedescription pid Process procid_target PID 3532 wrote to memory of 4488 3532 java.exe 82 PID 3532 wrote to memory of 4488 3532 java.exe 82 PID 4488 wrote to memory of 5048 4488 java.exe 86 PID 4488 wrote to memory of 5048 4488 java.exe 86 PID 5048 wrote to memory of 3032 5048 cmd.exe 88 PID 5048 wrote to memory of 3032 5048 cmd.exe 88
Processes
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C:\ProgramData\Oracle\Java\javapath\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\7fa5005bf0dbb8f5adf91a73a0fbc621d7454eafc332a2ba6603ec3b952023ab.jar1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3532 -
C:\Program Files\Java\jre1.8.0_66\bin\java.exe"C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar C:\Users\Admin\AppData\Local\Temp\_0.311648729588903556325842862132753780.class2⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4488 -
C:\Windows\SYSTEM32\cmd.execmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive3185797351609709312.vbs3⤵
- Suspicious use of WriteProcessMemory
PID:5048 -
C:\Windows\system32\cscript.execscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive3185797351609709312.vbs4⤵PID:3032
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C:\Windows\SYSTEM32\cmd.execmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive8849247452943322148.vbs3⤵PID:4744
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C:\Windows\system32\cscript.execscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive8849247452943322148.vbs4⤵PID:2228
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C:\Windows\SYSTEM32\xcopy.exexcopy "C:\Program Files\Java\jre1.8.0_66" "C:\Users\Admin\AppData\Roaming\Oracle\" /e3⤵PID:3752
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
50B
MD575104c98a5475a1c069014b37f9d18db
SHA11492f413aaa0f5dec8a753cb93994a6d7ad9ad5f
SHA2561794123d4c94a1c22dd017458abd47f62873c2d74a3eb6e35494dfee3dec496b
SHA5128a53fd16bf5f2cf62bde26d86e8e514dc98d16132b0c1615590cddafdfb36938b52351f305079e54378e32be52ee2ba5cd45e440e2c9a0a6bc19d1e0524d367d
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Filesize
276B
MD53bdfd33017806b85949b6faa7d4b98e4
SHA1f92844fee69ef98db6e68931adfaa9a0a0f8ce66
SHA2569da575dd2d5b7c1e9bab8b51a16cde457b3371c6dcdb0537356cf1497fa868f6
SHA512ae5e5686ae71edef53e71cd842cb6799e4383b9c238a5c361b81647efa128d2fedf3bf464997771b5b0c47a058fecae7829aeedcd098c80a11008581e5781429
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Filesize
281B
MD5a32c109297ed1ca155598cd295c26611
SHA1dc4a1fdbaad15ddd6fe22d3907c6b03727b71510
SHA25645bfe34aa3ef932f75101246eb53d032f5e7cf6d1f5b4e495334955a255f32e7
SHA51270372552dc86fe02ece9fe3b7721463f80be07a34126b2c75b41e30078cda9e90744c7d644df623f63d4fb985482e345b3351c4d3da873162152c67fc6ecc887
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Filesize
241KB
MD5781fb531354d6f291f1ccab48da6d39f
SHA19ce4518ebcb5be6d1f0b5477fa00c26860fe9a68
SHA25697d585b6aff62fb4e43e7e6a5f816dcd7a14be11a88b109a9ba9e8cd4c456eb9
SHA5123e6630f5feb4a3eb1dac7e9125ce14b1a2a45d7415cf44cea42bc51b2a9aa37169ee4a4c36c888c8f2696e7d6e298e2ad7b2f4c22868aaa5948210eb7db220d8
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2660308776-3705150086-26593515-1000\83aa4cc77f591dfc2374580bbd95f6ba_b975079f-5511-47c1-a87a-f7cd913ae83c
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd