Analysis
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max time kernel
299s -
max time network
301s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-12-2024 09:20
Behavioral task
behavioral1
Sample
20122024_0920_19122024_MBF-667548.jar
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
20122024_0920_19122024_MBF-667548.jar
Resource
win10v2004-20241007-en
General
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Target
20122024_0920_19122024_MBF-667548.jar
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Size
202KB
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MD5
343aff03f4582c780ce776fd6a794aa9
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SHA1
0901376c44403e0c4c15955628831fdb38e071e4
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SHA256
b7e88ae109f765c4456e0e3239e5b565908caf87c9cae4fb54d48921e8645766
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SHA512
64650c28c23d23b8549f783303d87284adcc7ffc038a93a3ac2856b48adc6e003e320565526978f52ba3fad4c75fb6ab8a76281f28df6616ece83757842ac04b
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SSDEEP
6144:4epoWhEq3+wIZZo4JKNqgbV6uDUFe7N7P:Kvq5IZZ7Cq7Pej
Malware Config
Extracted
strrat
157.230.51.65:9088
127.0.0.1:0
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license_id
MURM-QLUY-XVDU-NZ0K-0AAB
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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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Strrat family
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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\20122024_0920_19122024_MBF-667548.jar java.exe -
Loads dropped DLL 1 IoCs
pid Process 4704 java.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\20122024_0920_19122024_MBF-667548 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\20122024_0920_19122024_MBF-667548.jar\"" java.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\20122024_0920_19122024_MBF-667548 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\20122024_0920_19122024_MBF-667548.jar\"" java.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 30 ip-api.com -
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 924 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3732 WMIC.exe Token: SeSecurityPrivilege 3732 WMIC.exe Token: SeTakeOwnershipPrivilege 3732 WMIC.exe Token: SeLoadDriverPrivilege 3732 WMIC.exe Token: SeSystemProfilePrivilege 3732 WMIC.exe Token: SeSystemtimePrivilege 3732 WMIC.exe Token: SeProfSingleProcessPrivilege 3732 WMIC.exe Token: SeIncBasePriorityPrivilege 3732 WMIC.exe Token: SeCreatePagefilePrivilege 3732 WMIC.exe Token: SeBackupPrivilege 3732 WMIC.exe Token: SeRestorePrivilege 3732 WMIC.exe Token: SeShutdownPrivilege 3732 WMIC.exe Token: SeDebugPrivilege 3732 WMIC.exe Token: SeSystemEnvironmentPrivilege 3732 WMIC.exe Token: SeRemoteShutdownPrivilege 3732 WMIC.exe Token: SeUndockPrivilege 3732 WMIC.exe Token: SeManageVolumePrivilege 3732 WMIC.exe Token: 33 3732 WMIC.exe Token: 34 3732 WMIC.exe Token: 35 3732 WMIC.exe Token: 36 3732 WMIC.exe Token: SeIncreaseQuotaPrivilege 3732 WMIC.exe Token: SeSecurityPrivilege 3732 WMIC.exe Token: SeTakeOwnershipPrivilege 3732 WMIC.exe Token: SeLoadDriverPrivilege 3732 WMIC.exe Token: SeSystemProfilePrivilege 3732 WMIC.exe Token: SeSystemtimePrivilege 3732 WMIC.exe Token: SeProfSingleProcessPrivilege 3732 WMIC.exe Token: SeIncBasePriorityPrivilege 3732 WMIC.exe Token: SeCreatePagefilePrivilege 3732 WMIC.exe Token: SeBackupPrivilege 3732 WMIC.exe Token: SeRestorePrivilege 3732 WMIC.exe Token: SeShutdownPrivilege 3732 WMIC.exe Token: SeDebugPrivilege 3732 WMIC.exe Token: SeSystemEnvironmentPrivilege 3732 WMIC.exe Token: SeRemoteShutdownPrivilege 3732 WMIC.exe Token: SeUndockPrivilege 3732 WMIC.exe Token: SeManageVolumePrivilege 3732 WMIC.exe Token: 33 3732 WMIC.exe Token: 34 3732 WMIC.exe Token: 35 3732 WMIC.exe Token: 36 3732 WMIC.exe Token: SeIncreaseQuotaPrivilege 2300 WMIC.exe Token: SeSecurityPrivilege 2300 WMIC.exe Token: SeTakeOwnershipPrivilege 2300 WMIC.exe Token: SeLoadDriverPrivilege 2300 WMIC.exe Token: SeSystemProfilePrivilege 2300 WMIC.exe Token: SeSystemtimePrivilege 2300 WMIC.exe Token: SeProfSingleProcessPrivilege 2300 WMIC.exe Token: SeIncBasePriorityPrivilege 2300 WMIC.exe Token: SeCreatePagefilePrivilege 2300 WMIC.exe Token: SeBackupPrivilege 2300 WMIC.exe Token: SeRestorePrivilege 2300 WMIC.exe Token: SeShutdownPrivilege 2300 WMIC.exe Token: SeDebugPrivilege 2300 WMIC.exe Token: SeSystemEnvironmentPrivilege 2300 WMIC.exe Token: SeRemoteShutdownPrivilege 2300 WMIC.exe Token: SeUndockPrivilege 2300 WMIC.exe Token: SeManageVolumePrivilege 2300 WMIC.exe Token: 33 2300 WMIC.exe Token: 34 2300 WMIC.exe Token: 35 2300 WMIC.exe Token: 36 2300 WMIC.exe Token: SeIncreaseQuotaPrivilege 2300 WMIC.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 4688 wrote to memory of 4568 4688 java.exe 85 PID 4688 wrote to memory of 4568 4688 java.exe 85 PID 4568 wrote to memory of 4976 4568 java.exe 87 PID 4568 wrote to memory of 4976 4568 java.exe 87 PID 4568 wrote to memory of 4704 4568 java.exe 89 PID 4568 wrote to memory of 4704 4568 java.exe 89 PID 4976 wrote to memory of 924 4976 cmd.exe 91 PID 4976 wrote to memory of 924 4976 cmd.exe 91 PID 4704 wrote to memory of 1624 4704 java.exe 94 PID 4704 wrote to memory of 1624 4704 java.exe 94 PID 1624 wrote to memory of 3732 1624 cmd.exe 96 PID 1624 wrote to memory of 3732 1624 cmd.exe 96 PID 4704 wrote to memory of 4956 4704 java.exe 98 PID 4704 wrote to memory of 4956 4704 java.exe 98 PID 4956 wrote to memory of 2300 4956 cmd.exe 100 PID 4956 wrote to memory of 2300 4956 cmd.exe 100 PID 4704 wrote to memory of 2248 4704 java.exe 101 PID 4704 wrote to memory of 2248 4704 java.exe 101 PID 2248 wrote to memory of 1604 2248 cmd.exe 103 PID 2248 wrote to memory of 1604 2248 cmd.exe 103 PID 4704 wrote to memory of 3364 4704 java.exe 105 PID 4704 wrote to memory of 3364 4704 java.exe 105 PID 3364 wrote to memory of 216 3364 cmd.exe 107 PID 3364 wrote to memory of 216 3364 cmd.exe 107 -
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\20122024_0920_19122024_MBF-667548.jar1⤵
- Suspicious use of WriteProcessMemory
PID:4688 -
C:\Program Files\Java\jre-1.8\bin\java.exe"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\20122024_0920_19122024_MBF-667548.jar"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4568 -
C:\Windows\SYSTEM32\cmd.execmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\20122024_0920_19122024_MBF-667548.jar"3⤵
- Suspicious use of WriteProcessMemory
PID:4976 -
C:\Windows\system32\schtasks.exeschtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\20122024_0920_19122024_MBF-667548.jar"4⤵
- Scheduled Task/Job: Scheduled Task
PID:924
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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\20122024_0920_19122024_MBF-667548.jar"3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4704 -
C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"4⤵
- Suspicious use of WriteProcessMemory
PID:1624 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:3732
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"4⤵
- Suspicious use of WriteProcessMemory
PID:4956 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2300
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"4⤵
- Suspicious use of WriteProcessMemory
PID:2248 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list5⤵PID:1604
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C:\Windows\SYSTEM32\cmd.execmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"4⤵
- Suspicious use of WriteProcessMemory
PID:3364 -
C:\Windows\System32\Wbem\WMIC.exewmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list5⤵PID:216
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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
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Downloads
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Filesize
46B
MD54afc39c69385f74a18aeec5365f67ccf
SHA1e9f6365b3f23ed97469c687e13b0b6b7d9abe094
SHA256faaf17836753a44f4421f494e69b06be46851ccb88ed93a97170598fbd3cd8d9
SHA512750ec4e428ae0a47b6d6cc59676a6f4502e71d646b3ebff01bb29f498056d5ac67e8376220eddf2f703d353f12bc847951bb42845e27b9642d7f21110b86c632
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Filesize
202KB
MD5343aff03f4582c780ce776fd6a794aa9
SHA10901376c44403e0c4c15955628831fdb38e071e4
SHA256b7e88ae109f765c4456e0e3239e5b565908caf87c9cae4fb54d48921e8645766
SHA51264650c28c23d23b8549f783303d87284adcc7ffc038a93a3ac2856b48adc6e003e320565526978f52ba3fad4c75fb6ab8a76281f28df6616ece83757842ac04b
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Filesize
241KB
MD5e02979ecd43bcc9061eb2b494ab5af50
SHA13122ac0e751660f646c73b10c4f79685aa65c545
SHA256a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
SHA5121e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-4089630652-1596403869-279772308-1000\83aa4cc77f591dfc2374580bbd95f6ba_dc5cddf5-9e4b-4c89-ba53-89649a7a5ee7
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