Analysis
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max time kernel
242s -
max time network
255s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
12-07-2024 19:38
Behavioral task
behavioral1
Sample
62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar
Resource
win10v2004-20240709-en
Behavioral task
behavioral4
Sample
62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar
Resource
win11-20240709-en
General
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Target
62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar
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Size
275KB
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MD5
3c39f5d219ff8006dbab0ce247bf7232
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SHA1
39d19e5df70bdaa97afdf80c0ac8cbec2bb9625f
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SHA256
62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470
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SHA512
5ca723aa2ee65799180897bd263d9403aec2890e0f4d8d453b4be555f88e4223915e454e991e3d3d98b1b7f4fa388bbe947193249b2e78c2e90db38455d8ce74
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SSDEEP
6144:DYoXFR4xZ+WStJ112liBt9+CNyELmhzPlZCiu4nVB:DvDikmlG+CM1TlZC+VB
Malware Config
Extracted
strrat
185.222.58.80:7688
127.0.0.1:0
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license_id
6XKE-02Q8-MHKN-IOHS-FMRJ
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plugins_url
http://jbfrost.live/strigoi/server/?hwid=1&lid=m&ht=5
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scheduled_task
true
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secondary_startup
true
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startup
true
Signatures
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar java.exe -
Loads dropped DLL 1 IoCs
pid Process 2748 java.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4584 icacls.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\Software\Microsoft\Windows\CurrentVersion\Run\62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.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 500 schtasks.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 1580 wrote to memory of 4584 1580 java.exe 73 PID 1580 wrote to memory of 4584 1580 java.exe 73 PID 1580 wrote to memory of 4492 1580 java.exe 75 PID 1580 wrote to memory of 4492 1580 java.exe 75 PID 4492 wrote to memory of 360 4492 java.exe 77 PID 4492 wrote to memory of 360 4492 java.exe 77 PID 4492 wrote to memory of 2748 4492 java.exe 78 PID 4492 wrote to memory of 2748 4492 java.exe 78 PID 360 wrote to memory of 500 360 cmd.exe 81 PID 360 wrote to memory of 500 360 cmd.exe 81 -
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\62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar1⤵
- Suspicious use of WriteProcessMemory
PID:1580 -
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:4584
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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\62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4492 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:360 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar"4⤵
- Scheduled Task/Job: Scheduled Task
PID:500
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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\62271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470.jar"3⤵
- Loads dropped DLL
PID:2748
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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
MD50237eadc592ed4fe08634102724ad239
SHA12382e75c36fe18a3f04d56d9a354c55dbda2177e
SHA256873aaa5333a3f928cef75de3538e942f3737476f4e7805fcd979b1ed07034a12
SHA512bd875ad280e1f384ef44931aa4389e65c465dcfe51cec803d934c2a5c28c1dcf6d3509843ca9476de1c182432a22f80116a3f9eeeb95aac198f564497d553d25
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Filesize
46B
MD5617fbce14a8ad49ba056f7406761a527
SHA18d356efe19a731c1595e65a813152296c0fa7f79
SHA256f7eabe406c10ebcb9d36a31b7306af5fbf7ff437c20e24fff737204506dab19e
SHA512f5d1b3df66e3cdc0b52385899bd05527c774db89b3eafe527606a2129c946c60e2e8003a94f373f8c3127fa4f48ce1014816755e586961687c4118be410fe9de
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Filesize
275KB
MD53c39f5d219ff8006dbab0ce247bf7232
SHA139d19e5df70bdaa97afdf80c0ac8cbec2bb9625f
SHA25662271ce84033d4463bd6f753675466f45ccc6c3a063c78c2c5b0346c23d3c470
SHA5125ca723aa2ee65799180897bd263d9403aec2890e0f4d8d453b4be555f88e4223915e454e991e3d3d98b1b7f4fa388bbe947193249b2e78c2e90db38455d8ce74
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1687926120-3022217735-1146543763-1000\83aa4cc77f591dfc2374580bbd95f6ba_ae202211-6e17-4cac-b8d2-d431e54ee209
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
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372