Analysis
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max time kernel
135s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
27-08-2024 08:21
Behavioral task
behavioral1
Sample
c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar
Resource
win10v2004-20240802-en
General
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Target
c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar
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Size
103KB
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MD5
c4a38d07773d619f73abad13ed74286f
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SHA1
5199ab6257db0d690b7a08566bf8f032c74a22a8
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SHA256
2799f78dd51fce411e566d428cd2f26bb752370f1be1fb2f4ffbc23ae1fd6504
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SHA512
b6377eb8c2cacca9912374b4eda3edf3c368d3154c946d4536bc2e94679a4587e601cb3c08a8711106fc9b9c51572a6fba9c68615353fa2869e18de38065f4d5
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SSDEEP
3072:W1ugSIpJlEYiuzgd5wfe8/qoYwLJdRjatMFrzq:d2JlEYiZwW8/qqNdRjaitzq
Malware Config
Extracted
strrat
194.5.98.239:5059
194.5.97.159:5058
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license_id
PVW8-WK5J-OZYB-RCGX-ZPVO
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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\c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar java.exe -
Loads dropped DLL 2 IoCs
Processes:
java.exejava.exepid Process 3384 java.exe 2944 java.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
java.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c4a38d07773d619f73abad13ed74286f_JaffaCakes118 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c4a38d07773d619f73abad13ed74286f_JaffaCakes118 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar\"" java.exe -
Drops file in Program Files directory 1 IoCs
Processes:
java.exedescription ioc Process File created C:\Program Files\Java\jre-1.8\c4a38d07773d619f73abad13ed74286f_JaffaCakes118.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.exejava.execmd.exedescription pid Process procid_target PID 1368 wrote to memory of 2296 1368 java.exe 95 PID 1368 wrote to memory of 2296 1368 java.exe 95 PID 2296 wrote to memory of 3384 2296 java.exe 97 PID 2296 wrote to memory of 3384 2296 java.exe 97 PID 3384 wrote to memory of 2708 3384 java.exe 99 PID 3384 wrote to memory of 2708 3384 java.exe 99 PID 3384 wrote to memory of 2944 3384 java.exe 100 PID 3384 wrote to memory of 2944 3384 java.exe 100 PID 2708 wrote to memory of 1976 2708 cmd.exe 103 PID 2708 wrote to memory of 1976 2708 cmd.exe 103 -
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\c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1368 -
C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Program Files\Java\jre-1.8\c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar"2⤵
- Suspicious use of WriteProcessMemory
PID:2296 -
C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar"3⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3384 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar"4⤵
- Suspicious use of WriteProcessMemory
PID:2708 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar"5⤵
- Scheduled Task/Job: Scheduled Task
PID:1976
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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\c4a38d07773d619f73abad13ed74286f_JaffaCakes118.jar"4⤵
- Loads dropped DLL
PID:2944
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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
103KB
MD5c4a38d07773d619f73abad13ed74286f
SHA15199ab6257db0d690b7a08566bf8f032c74a22a8
SHA2562799f78dd51fce411e566d428cd2f26bb752370f1be1fb2f4ffbc23ae1fd6504
SHA512b6377eb8c2cacca9912374b4eda3edf3c368d3154c946d4536bc2e94679a4587e601cb3c08a8711106fc9b9c51572a6fba9c68615353fa2869e18de38065f4d5
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Filesize
46B
MD505d0a925f4b0b46eb7f019a56a32b0a2
SHA16592ebe4dfb117cc9e17d150a06ae5b2df109a82
SHA2567477100259c1f957d99363459611cc0c0ea18d4a4233bbd0f85e1611f8b76a32
SHA512e4eeac9d9eb1319b3bec0ad357f9d406421a6d40faca99f593a661f6fc27eee34f73901fbfa02e0a4caaaa885038fc9a77e4bd971d896e5a3207fe3820da13a9
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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Filesize
46B
MD5b563748235fce4ae71bac946990934f6
SHA1aaed538dd6b97c08be801e28a40613f0de02e8bb
SHA256e6c498c75a1256e9f90f68eb9d701bcec3adc8db33b244d1a36edbf3e60e179a
SHA512268d94a7021d06ceca043e1272bcc4e49c3c47c55662a4d38f5b50a657dbb0ebb5f1b35d9a34119854fb4385a0b317b45ba1ec4eafb436513591ce1b54bf7642
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1194130065-3471212556-1656947724-1000\83aa4cc77f591dfc2374580bbd95f6ba_a53bb4ca-6113-48bb-9609-441860fdd0d7
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