Analysis
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max time kernel
27s -
max time network
40s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
06-07-2024 15:33
Behavioral task
behavioral1
Sample
3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar
Resource
win10v2004-20240508-en
Behavioral task
behavioral4
Sample
3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar
Resource
win11-20240508-en
General
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Target
3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar
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Size
203KB
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MD5
b6ca4213e6f097b3537f732a4ffd195f
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SHA1
59539ba574ca3ad901331cfaef98977d68fc3ee0
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SHA256
3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b
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SHA512
ee17012dcfd98829e4a5fae7b11c7265a16ccdb3a0682968fd115b57fef10123ff9174119fbed70c2d1cd3d63eb8437ddc3f289da3652bdf1f8aac96cde5b0e1
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SSDEEP
3072:xxXgSiFF4/9Gc/GJrulpnKtQ3aeb01TdD9KQ0rSK2WF52G8a:xhgSiFFc/4Cl4qp01Tx9+SrG8a
Malware Config
Extracted
strrat
dollarman101.hopto.org:6060
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license_id
ZTT1-7ZAL-XCZM-48JG-C0LB
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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
Processes:
java.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar java.exe -
Loads dropped DLL 1 IoCs
Processes:
java.exepid process 3604 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\USER\S-1-5-21-3968772205-1713802336-1776639840-1000\Software\Microsoft\Windows\CurrentVersion\Run\3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.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.
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Suspicious use of WriteProcessMemory 10 IoCs
Processes:
java.exejava.execmd.exedescription pid process target process PID 428 wrote to memory of 3932 428 java.exe icacls.exe PID 428 wrote to memory of 3932 428 java.exe icacls.exe PID 428 wrote to memory of 484 428 java.exe java.exe PID 428 wrote to memory of 484 428 java.exe java.exe PID 484 wrote to memory of 380 484 java.exe cmd.exe PID 484 wrote to memory of 380 484 java.exe cmd.exe PID 484 wrote to memory of 3604 484 java.exe java.exe PID 484 wrote to memory of 3604 484 java.exe java.exe PID 380 wrote to memory of 4220 380 cmd.exe schtasks.exe PID 380 wrote to memory of 4220 380 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\3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar1⤵
- Suspicious use of WriteProcessMemory
PID:428 -
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:3932
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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\3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:484 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:380 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar"4⤵
- Scheduled Task/Job: Scheduled Task
PID:4220
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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\3eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b.jar"3⤵
- Loads dropped DLL
PID:3604
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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
MD5810406f0ac3db02fd50a66aa25493b73
SHA11a19173612966f710df7e9b8585ffa23453f5f10
SHA2566093ef5db881beee5194614995efab5791df58ee0f97d00942b4268fe8332d36
SHA5128fbdec6a7559a4e25d1d62608f0d3f2df1503d8336c27d271a3c324594e7f11b52f7b9fdda170170c6ed52688531d7909528b70c74188c04eb5394293f01ff71
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Filesize
46B
MD5b749f1baba7f21331545ca40115ef357
SHA18f49e6a2c82476c1da54c85d1263801aade431ab
SHA25674c6fcc69c7d3f303fdaccfd294f748eb59a6a4d452bcb22dc95c69d767632e8
SHA51222a1d1d6ecb8a6b164b23af15fddd9b0fd1dc0bdca682e60d856f0755a14cbeab349330b3f255fe75223dda8970268235e2f9eb2b75ce3e45fc653809ff579d6
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Filesize
203KB
MD5b6ca4213e6f097b3537f732a4ffd195f
SHA159539ba574ca3ad901331cfaef98977d68fc3ee0
SHA2563eafb74de2ee510948914c85bc60f01044bae17b12055e892c1711abc20fd64b
SHA512ee17012dcfd98829e4a5fae7b11c7265a16ccdb3a0682968fd115b57fef10123ff9174119fbed70c2d1cd3d63eb8437ddc3f289da3652bdf1f8aac96cde5b0e1
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3968772205-1713802336-1776639840-1000\83aa4cc77f591dfc2374580bbd95f6ba_f4fe33a0-f73d-4d5c-8730-deeef20ef238
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