Analysis
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max time kernel
145s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
30-07-2024 02:00
Static task
static1
Behavioral task
behavioral1
Sample
7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar
Resource
win10v2004-20240709-en
General
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Target
7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar
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Size
400KB
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MD5
4a0b95e278f0a59bcff16500edc25568
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SHA1
35bf164377b6cdb43551935404452283cf7e7b97
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SHA256
7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc
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SHA512
b4ff765f14a1f4df43292b11ad03496f14affad5f918b2a2f36922c542ccda8e6eb000d418d7503aa5cfcd6b2c811a0995f9e63577a9ba5a168d9127b1a69e15
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SSDEEP
12288:GzZWHT+5Y3PDDh8Hv733p3KTcHVP9iNyom:GNST+5uabZHP9Qpm
Malware Config
Signatures
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Drops startup file 1 IoCs
Processes:
java.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar java.exe -
Loads dropped DLL 1 IoCs
Processes:
java.exepid Process 2300 java.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
java.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar\"" java.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious use of WriteProcessMemory 8 IoCs
Processes:
java.exejava.execmd.exedescription pid Process procid_target PID 1684 wrote to memory of 4144 1684 java.exe 92 PID 1684 wrote to memory of 4144 1684 java.exe 92 PID 4144 wrote to memory of 840 4144 java.exe 94 PID 4144 wrote to memory of 840 4144 java.exe 94 PID 4144 wrote to memory of 2300 4144 java.exe 95 PID 4144 wrote to memory of 2300 4144 java.exe 95 PID 840 wrote to memory of 3024 840 cmd.exe 98 PID 840 wrote to memory of 3024 840 cmd.exe 98 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar1⤵
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4144 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:840 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar"4⤵
- Scheduled Task/Job: Scheduled Task
PID:3024
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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\Roaming\7dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc.jar"3⤵
- Loads dropped DLL
PID:2300
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
46B
MD5374e860caae5b5d1352d809962b8425b
SHA17e250af07d715dec54292047cdd5919911346791
SHA256adf4e454a6f2ea949413c8b5b95736b92a7049434034f7363f49cc88aa627f56
SHA512354900e996178740a2c99ddd67f4457f6a14e7908122103c8b0ca8cc35b88fcd29577c96283b1b07acaa9c22ab3d787fe7d6b2954a8b52d579cbaa2d5493aabc
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Filesize
46B
MD532c11ad8c4281fd2e59406b81a46e058
SHA1adbf4db34a9eb4e150310b98697bafc65d2a0d83
SHA256e11a88c403d76218ca51f8ef3a8539a8c28446b2002d646d1befda04991cb4d5
SHA512a558d087c10afe2546ebea8d95f6dbaf56c97a84dd55d3e59f2d3f2af9412fabfafa933dc822ccf38df87a42d43db485856eb2f83b21f498d6b91f02d0330cce
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Filesize
400KB
MD54a0b95e278f0a59bcff16500edc25568
SHA135bf164377b6cdb43551935404452283cf7e7b97
SHA2567dbd3729dd6c23e0329158520fa3cfcd3d78126f901aacad8a249a2166638fcc
SHA512b4ff765f14a1f4df43292b11ad03496f14affad5f918b2a2f36922c542ccda8e6eb000d418d7503aa5cfcd6b2c811a0995f9e63577a9ba5a168d9127b1a69e15
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-464762018-485119342-1613148473-1000\83aa4cc77f591dfc2374580bbd95f6ba_a18f179e-3e6f-4f43-8bbf-9eee996556bc
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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Filesize
1.4MB
MD5acfb5b5fd9ee10bf69497792fd469f85
SHA10e0845217c4907822403912ad6828d8e0b256208
SHA256b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
SHA512e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa
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Filesize
2.6MB
MD52f4a99c2758e72ee2b59a73586a2322f
SHA1af38e7c4d0fc73c23ecd785443705bfdee5b90bf
SHA25624d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
SHA512b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494
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Filesize
4.1MB
MD5b33387e15ab150a7bf560abdc73c3bec
SHA166b8075784131f578ef893fd7674273f709b9a4c
SHA2562eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
SHA51225cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279
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Filesize
772KB
MD5e1aa38a1e78a76a6de73efae136cdb3a
SHA1c463da71871f780b2e2e5dba115d43953b537daf
SHA2562ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
SHA512fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d