Analysis
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max time kernel
135s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
24-07-2024 01:28
Static task
static1
Behavioral task
behavioral1
Sample
3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937.jar
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937.jar
Resource
win10v2004-20240709-en
General
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Target
3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937.jar
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Size
400KB
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MD5
0b6fbf92570074872a27c7c770e0df63
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SHA1
8e59ba98c196cd3c490ceffbadb3bacf5380d3fe
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SHA256
3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937
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SHA512
bae3b3ceef3d16386ef829d206cd94dd7c2e690d078720bbb5f1c57809569b2f6dd953764c1b8219558bfe7ae5df763fc4ccf7c789d90f562af545c03838f38f
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SSDEEP
12288:ujJmHTO5wfXjD5cnv7n3J3ijc3tP9iNSj:utiTO5OiL5fP9Q+
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 3592 java.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937.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.
pid Process 1548 schtasks.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2528 wrote to memory of 1700 2528 java.exe 95 PID 2528 wrote to memory of 1700 2528 java.exe 95 PID 1700 wrote to memory of 2916 1700 java.exe 97 PID 1700 wrote to memory of 2916 1700 java.exe 97 PID 1700 wrote to memory of 3592 1700 java.exe 98 PID 1700 wrote to memory of 3592 1700 java.exe 98 PID 2916 wrote to memory of 1548 2916 cmd.exe 101 PID 2916 wrote to memory of 1548 2916 cmd.exe 101 -
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\3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937.jar1⤵
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937.jar"2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937.jar"4⤵
- Scheduled Task/Job: Scheduled Task
PID:1548
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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\3546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937.jar"3⤵
- Loads dropped DLL
PID:3592
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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
-
Filesize
46B
MD56c49fd4699660f95f4ca7622116cd141
SHA1545690c6b27be620c6ea3bfbf8887a10ea39b38d
SHA256d1c80821dc199c7f3fcdf14e398a56fd4f3fe7ef38862a69287f8772e9df0883
SHA51225d641c496fafcc6c1e37617dbf59a506b3f65c47c97bd1c46356c488e4f98a2360f3faa6bbc31e445256f94c58821649d72570732929d387038479ac5943f97
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Filesize
400KB
MD50b6fbf92570074872a27c7c770e0df63
SHA18e59ba98c196cd3c490ceffbadb3bacf5380d3fe
SHA2563546d4fa8249cfe559f61262d4914a3808ac7d9239d97ac91d57ef86c858b937
SHA512bae3b3ceef3d16386ef829d206cd94dd7c2e690d078720bbb5f1c57809569b2f6dd953764c1b8219558bfe7ae5df763fc4ccf7c789d90f562af545c03838f38f
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-47134698-4092160662-1261813102-1000\83aa4cc77f591dfc2374580bbd95f6ba_58a5be6a-fbdc-4fe6-8f93-5aa44c9d3351
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