Analysis
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max time kernel
144s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
20-07-2024 09:20
Static task
static1
Behavioral task
behavioral1
Sample
36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6.jar
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6.jar
Resource
win10v2004-20240709-en
General
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Target
36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6.jar
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Size
400KB
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MD5
694e01647c3fe609c82f10ba8e6ae711
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SHA1
4fcacbef1ca57541cce0530117b42d6d568ae232
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SHA256
36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6
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SHA512
0c4ead6728c2f2327a6b7787f89147181232c76267671f51378d0bfe06efac59d83f54a11bbf6131a1011114905d2b597740dc29fdac2644f7b031a89ca17c8d
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SSDEEP
12288:I4OkHTr5nw4MDRA0v7m3jSmDc8/P9iNIm8:IpATr59ISTFP9Qk
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 4352 java.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6.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 3036 schtasks.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4120 wrote to memory of 3644 4120 java.exe 94 PID 4120 wrote to memory of 3644 4120 java.exe 94 PID 3644 wrote to memory of 708 3644 java.exe 96 PID 3644 wrote to memory of 708 3644 java.exe 96 PID 3644 wrote to memory of 4352 3644 java.exe 97 PID 3644 wrote to memory of 4352 3644 java.exe 97 PID 708 wrote to memory of 3036 708 cmd.exe 100 PID 708 wrote to memory of 3036 708 cmd.exe 100 -
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\36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6.jar1⤵
- Suspicious use of WriteProcessMemory
PID:4120 -
C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6.jar"2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3644 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:708 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6.jar"4⤵
- Scheduled Task/Job: Scheduled Task
PID:3036
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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\36fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6.jar"3⤵
- Loads dropped DLL
PID:4352
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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
400KB
MD5694e01647c3fe609c82f10ba8e6ae711
SHA14fcacbef1ca57541cce0530117b42d6d568ae232
SHA25636fe8b9f65dae5e382f1e5cb7fc08fae30df707065a0e3615d753d0215439dc6
SHA5120c4ead6728c2f2327a6b7787f89147181232c76267671f51378d0bfe06efac59d83f54a11bbf6131a1011114905d2b597740dc29fdac2644f7b031a89ca17c8d
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-701583114-2636601053-947405450-1000\83aa4cc77f591dfc2374580bbd95f6ba_9370e86d-1eb3-453f-8ea4-ee21ada11d8d
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