Analysis Overview
SHA256
155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550
Threat Level: Known bad
The file 155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar was found to be: Known bad.
Malicious Activity Summary
STRRAT
Drops startup file
Adds Run key to start application
Looks up external IP address via web service
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-08-17 02:33
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-08-17 02:33
Reported
2023-08-17 02:36
Platform
win7-20230712-en
Max time kernel
150s
Max time network
153s
Command Line
Signatures
STRRAT
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar | C:\Windows\system32\java.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4219371764-2579186923-3390623117-1000\Software\Microsoft\Windows\CurrentVersion\Run\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar\"" | C:\Windows\system32\java.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar\"" | C:\Windows\system32\java.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 33 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 34 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 35 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 33 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 34 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 35 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 33 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 34 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 35 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar
C:\Windows\system32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar"
C:\Program Files\Java\jre7\bin\java.exe
"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar"
C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar"
C:\Windows\system32\cmd.exe
cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
C:\Windows\System32\Wbem\WMIC.exe
wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
C:\Windows\system32\cmd.exe
cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
C:\Windows\System32\Wbem\WMIC.exe
wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
C:\Windows\system32\cmd.exe
cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
C:\Windows\System32\Wbem\WMIC.exe
wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
C:\Windows\system32\cmd.exe
cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list"
C:\Windows\System32\Wbem\WMIC.exe
wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | efcc.duckdns.org | udp |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
Files
memory/2236-61-0x0000000002140000-0x0000000005140000-memory.dmp
memory/2236-63-0x0000000000220000-0x0000000000221000-memory.dmp
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar
| MD5 | 81672f4c4a4b89a9753e55e26d393678 |
| SHA1 | 134e34b47bd0e38424472903f358be7a913051a6 |
| SHA256 | 155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 |
| SHA512 | 6d3976df4a86e038d528c932562142817cba8ff8f00958032440673b13bc110af4e9837700a2b0ccf59f3de84aa0fe0de82e8195f1213b71fa93d9cd18f97010 |
C:\Users\Admin\AppData\Roaming\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar
| MD5 | 81672f4c4a4b89a9753e55e26d393678 |
| SHA1 | 134e34b47bd0e38424472903f358be7a913051a6 |
| SHA256 | 155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 |
| SHA512 | 6d3976df4a86e038d528c932562142817cba8ff8f00958032440673b13bc110af4e9837700a2b0ccf59f3de84aa0fe0de82e8195f1213b71fa93d9cd18f97010 |
memory/2972-75-0x0000000002210000-0x0000000005210000-memory.dmp
memory/2972-82-0x0000000000120000-0x0000000000121000-memory.dmp
memory/2972-85-0x0000000002210000-0x0000000005210000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-08-17 02:33
Reported
2023-08-17 02:36
Platform
win10v2004-20230703-en
Max time kernel
39s
Max time network
92s
Command Line
Signatures
STRRAT
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar | C:\ProgramData\Oracle\Java\javapath\java.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar\"" | C:\ProgramData\Oracle\Java\javapath\java.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar\"" | C:\ProgramData\Oracle\Java\javapath\java.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3160 wrote to memory of 3688 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Windows\SYSTEM32\cmd.exe |
| PID 3160 wrote to memory of 3688 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Windows\SYSTEM32\cmd.exe |
| PID 3160 wrote to memory of 3956 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Program Files\Java\jre1.8.0_66\bin\java.exe |
| PID 3160 wrote to memory of 3956 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Program Files\Java\jre1.8.0_66\bin\java.exe |
| PID 3688 wrote to memory of 4684 | N/A | C:\Windows\SYSTEM32\cmd.exe | C:\Windows\system32\schtasks.exe |
| PID 3688 wrote to memory of 4684 | N/A | C:\Windows\SYSTEM32\cmd.exe | C:\Windows\system32\schtasks.exe |
Processes
C:\ProgramData\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar
C:\Windows\SYSTEM32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar"
C:\Program Files\Java\jre1.8.0_66\bin\java.exe
"C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar"
C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 108.211.229.192.in-addr.arpa | udp |
Files
memory/3160-137-0x0000000003150000-0x0000000004150000-memory.dmp
memory/3160-148-0x0000000003150000-0x0000000004150000-memory.dmp
memory/3160-149-0x00000000014F0000-0x00000000014F1000-memory.dmp
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar
| MD5 | 81672f4c4a4b89a9753e55e26d393678 |
| SHA1 | 134e34b47bd0e38424472903f358be7a913051a6 |
| SHA256 | 155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 |
| SHA512 | 6d3976df4a86e038d528c932562142817cba8ff8f00958032440673b13bc110af4e9837700a2b0ccf59f3de84aa0fe0de82e8195f1213b71fa93d9cd18f97010 |
memory/3160-158-0x00000000033D0000-0x00000000033E0000-memory.dmp
memory/3160-159-0x00000000033F0000-0x0000000003400000-memory.dmp
memory/3160-160-0x0000000003400000-0x0000000003410000-memory.dmp
memory/3160-161-0x0000000003150000-0x0000000004150000-memory.dmp
C:\Users\Admin\AppData\Roaming\155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550.jar
| MD5 | 81672f4c4a4b89a9753e55e26d393678 |
| SHA1 | 134e34b47bd0e38424472903f358be7a913051a6 |
| SHA256 | 155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 |
| SHA512 | 6d3976df4a86e038d528c932562142817cba8ff8f00958032440673b13bc110af4e9837700a2b0ccf59f3de84aa0fe0de82e8195f1213b71fa93d9cd18f97010 |
C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp
| MD5 | 306edf80e2d8a99d9ac4fba06192aeb9 |
| SHA1 | deb4a32ca3d083a7c7a6f2fff90373a7de6cd2fa |
| SHA256 | 5a26975b85ede08ac554d06905a0f2fe3c7d9d228a8ff1db375966ea61aea0ae |
| SHA512 | 784153894d3d95a86f5fb0e6b38746a3268cdc31079b823e5e379bb027f8ea3cf10dfc60ceaf69779ff13b2ae2a4c77cf32690a4caf6e93e0df7e68ff8f74587 |
memory/3956-173-0x0000000002450000-0x0000000003450000-memory.dmp
memory/3956-175-0x0000000001F90000-0x0000000001F91000-memory.dmp