Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
08-06-2024 07:52
Static task
static1
Behavioral task
behavioral1
Sample
cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar
Resource
win10v2004-20240508-en
General
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Target
cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar
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Size
481KB
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MD5
cf853ba5808b795bed3b7fc2ba55274f
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SHA1
d669abbff493925068e637b999cb28cfbc2181a0
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SHA256
cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741
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SHA512
33e621a67af9d89580e71e995024bb9b37a7b8c0e0d305c3cc46f957613599d8f85771655767bc97559f1330ba45e4fb6570fb49502627cb14e19955025a0771
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SSDEEP
12288:OhlGrKeQSPEIBrX01FURb5hvdCqBFkMNi29Kc4:OrGrlzL0M9QEi2Y
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\cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar java.exe -
Loads dropped DLL 1 IoCs
Processes:
java.exepid process 2136 java.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
java.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar\"" java.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar\"" java.exe -
Creates scheduled task(s) 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 10 IoCs
Processes:
java.exejava.execmd.exedescription pid process target process PID 1912 wrote to memory of 4572 1912 java.exe icacls.exe PID 1912 wrote to memory of 4572 1912 java.exe icacls.exe PID 1912 wrote to memory of 2996 1912 java.exe java.exe PID 1912 wrote to memory of 2996 1912 java.exe java.exe PID 2996 wrote to memory of 3244 2996 java.exe cmd.exe PID 2996 wrote to memory of 3244 2996 java.exe cmd.exe PID 2996 wrote to memory of 2136 2996 java.exe java.exe PID 2996 wrote to memory of 2136 2996 java.exe java.exe PID 3244 wrote to memory of 548 3244 cmd.exe schtasks.exe PID 3244 wrote to memory of 548 3244 cmd.exe schtasks.exe -
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\cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar1⤵
- Suspicious use of WriteProcessMemory
PID:1912 -
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:4572
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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\cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2996 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:3244 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar"4⤵
- Creates scheduled task(s)
PID:548
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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\cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741.jar"3⤵
- Loads dropped DLL
PID:2136
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
46B
MD541ecd46b59921787cb5704bd51a967c8
SHA10b2ded756c5ceff9bbb6016b5d12d07b891e9831
SHA2568d3414767d8b6eb3506fc1a750474a64541c65d26d076f5b561477755d4c7fe5
SHA512e0e17eb8dde810e1bfb873958267a246410de78dd4fc0e7a29dd82803706ee5ec84b0979fbe6acc90434d7fa5d1e13686378c2962772c6edf4061d0e019ed49e
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Filesize
46B
MD50ae8b675c6208a00ec0f9e1f76206177
SHA1912c2e98c9c9cdef35e6882cd58315d02e373ea9
SHA256ea1cb60e8d857388f1480b962a9c683d6b6a5e2c69562e77a33673d2484502fa
SHA512c22048c7cfffb11c238a325c2443f8ac707c83911b4e2cd5c466628556294d8191a21f30d6fb0c0912ad2cea9b38aea053ac173f6c977093a4661335f790fbde
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1337824034-2731376981-3755436523-1000\83aa4cc77f591dfc2374580bbd95f6ba_6833eb7b-8d4b-4cdd-9502-9bbf7fc1cf9f
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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Filesize
481KB
MD5cf853ba5808b795bed3b7fc2ba55274f
SHA1d669abbff493925068e637b999cb28cfbc2181a0
SHA256cae1d06781f000cf396269e2b734d841192b2b09e7e1e9170b721ac77b70e741
SHA51233e621a67af9d89580e71e995024bb9b37a7b8c0e0d305c3cc46f957613599d8f85771655767bc97559f1330ba45e4fb6570fb49502627cb14e19955025a0771
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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