Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
16-10-2024 05:06
Static task
static1
Behavioral task
behavioral1
Sample
Telex-copy-pdf.jar
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
Telex-copy-pdf.jar
Resource
win10v2004-20241007-en
General
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Target
Telex-copy-pdf.jar
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Size
559KB
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MD5
3bef1c79ca4636a4eb92ee90367612d0
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SHA1
2cb346efa1cbb2a790cb31a12a3f88b0f3308cd8
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SHA256
9ea17585514dd3c67c40965ed9a96bddea86fcd903230ba306767cb313f7819b
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SHA512
174da7ac0a6b68b4751b55f46246864a0d123ae70ac7b41b77e108d30b771886dea5908b5a5291e61ed3f2a0a2b1de8e47a51891b3f0c6166f93ee17e0af6b72
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SSDEEP
12288:TFAfj3vraZP0fJwYfe42TAp4ZJRWJwI+B4LU71zh+cx9W:Gbv2ZMhBiWp6j1xU
Malware Config
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\Telex-copy-pdf.jar java.exe -
Loads dropped DLL 1 IoCs
pid Process 1264 java.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Telex-copy-pdf = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Telex-copy-pdf.jar\"" java.exe Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Telex-copy-pdf = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Telex-copy-pdf.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 2672 schtasks.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4016 wrote to memory of 904 4016 java.exe 92 PID 4016 wrote to memory of 904 4016 java.exe 92 PID 904 wrote to memory of 1648 904 java.exe 96 PID 904 wrote to memory of 1648 904 java.exe 96 PID 904 wrote to memory of 1264 904 java.exe 97 PID 904 wrote to memory of 1264 904 java.exe 97 PID 1648 wrote to memory of 2672 1648 cmd.exe 100 PID 1648 wrote to memory of 2672 1648 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\Telex-copy-pdf.jar1⤵
- Suspicious use of WriteProcessMemory
PID:4016 -
C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\Telex-copy-pdf.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:904 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Telex-copy-pdf.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:1648 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Telex-copy-pdf.jar"4⤵
- Scheduled Task/Job: Scheduled Task
PID:2672
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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\Telex-copy-pdf.jar"3⤵
- Loads dropped DLL
PID:1264
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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
MD5dcd64b38e2612510811ce18015e000b1
SHA129b07e98f01040e789e5b61a04cbcb5916241eca
SHA256b92f8cc1357374acca4a81b4053b41c93d6ffabda761568f9b60299649fb7d2a
SHA512d2e47383ad3656a2e55d69f25b72a725ddd548b6aab4350ecadae5fd948d28c4c996905926cfa83ae52a9106d0bbe18c83f56e6808ae42f18d0683ca799e6db6
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-940901362-3608833189-1915618603-1000\83aa4cc77f591dfc2374580bbd95f6ba_f2cdb6fb-4ab8-4547-9f25-fad1f7a44351
Filesize45B
MD5c8366ae350e7019aefc9d1e6e6a498c6
SHA15731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA25611e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
SHA51233c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
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Filesize
559KB
MD53bef1c79ca4636a4eb92ee90367612d0
SHA12cb346efa1cbb2a790cb31a12a3f88b0f3308cd8
SHA2569ea17585514dd3c67c40965ed9a96bddea86fcd903230ba306767cb313f7819b
SHA512174da7ac0a6b68b4751b55f46246864a0d123ae70ac7b41b77e108d30b771886dea5908b5a5291e61ed3f2a0a2b1de8e47a51891b3f0c6166f93ee17e0af6b72
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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