Analysis Overview
SHA256
21a6cbda0d8cd522b1098ac56ee1693e704289c3fa8c05d00c111e8f061d0aa8
Threat Level: Known bad
The file Payment_Advice.zip was found to be: Known bad.
Malicious Activity Summary
STRRAT
Drops startup file
Adds Run key to start application
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-08-17 11:43
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-08-17 11:43
Reported
2023-08-17 11:45
Platform
win7-20230712-en
Max time kernel
119s
Max time network
123s
Command Line
Signatures
STRRAT
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Payment_Advice.jar | C:\Windows\system32\java.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000\Software\Microsoft\Windows\CurrentVersion\Run\Payment_Advice = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Payment_Advice.jar\"" | C:\Windows\system32\java.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Payment_Advice = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Payment_Advice.jar\"" | C:\Windows\system32\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 2556 wrote to memory of 2928 | N/A | C:\Windows\system32\java.exe | C:\Windows\system32\cmd.exe |
| PID 2556 wrote to memory of 2928 | N/A | C:\Windows\system32\java.exe | C:\Windows\system32\cmd.exe |
| PID 2556 wrote to memory of 2928 | N/A | C:\Windows\system32\java.exe | C:\Windows\system32\cmd.exe |
| PID 2556 wrote to memory of 2956 | N/A | C:\Windows\system32\java.exe | C:\Program Files\Java\jre7\bin\java.exe |
| PID 2556 wrote to memory of 2956 | N/A | C:\Windows\system32\java.exe | C:\Program Files\Java\jre7\bin\java.exe |
| PID 2556 wrote to memory of 2956 | N/A | C:\Windows\system32\java.exe | C:\Program Files\Java\jre7\bin\java.exe |
| PID 2928 wrote to memory of 2460 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\schtasks.exe |
| PID 2928 wrote to memory of 2460 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\schtasks.exe |
| PID 2928 wrote to memory of 2460 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\schtasks.exe |
Processes
C:\Windows\system32\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\Payment_Advice.jar
C:\Windows\system32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Payment_Advice.jar"
C:\Program Files\Java\jre7\bin\java.exe
"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\Payment_Advice.jar"
C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Payment_Advice.jar"
Network
Files
memory/2556-62-0x0000000002060000-0x0000000005060000-memory.dmp
memory/2556-64-0x0000000000430000-0x0000000000431000-memory.dmp
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Payment_Advice.jar
| MD5 | 81672f4c4a4b89a9753e55e26d393678 |
| SHA1 | 134e34b47bd0e38424472903f358be7a913051a6 |
| SHA256 | 155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 |
| SHA512 | 6d3976df4a86e038d528c932562142817cba8ff8f00958032440673b13bc110af4e9837700a2b0ccf59f3de84aa0fe0de82e8195f1213b71fa93d9cd18f97010 |
C:\Users\Admin\AppData\Roaming\Payment_Advice.jar
| MD5 | 81672f4c4a4b89a9753e55e26d393678 |
| SHA1 | 134e34b47bd0e38424472903f358be7a913051a6 |
| SHA256 | 155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 |
| SHA512 | 6d3976df4a86e038d528c932562142817cba8ff8f00958032440673b13bc110af4e9837700a2b0ccf59f3de84aa0fe0de82e8195f1213b71fa93d9cd18f97010 |
memory/2956-79-0x0000000002230000-0x0000000005230000-memory.dmp
memory/2956-82-0x0000000000120000-0x0000000000121000-memory.dmp
memory/2956-83-0x0000000002230000-0x0000000005230000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-08-17 11:43
Reported
2023-08-17 11:45
Platform
win10v2004-20230703-en
Max time kernel
147s
Max time network
154s
Command Line
Signatures
STRRAT
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Payment_Advice.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-1-5-21-618519468-4027732583-1827558364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Payment_Advice = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Payment_Advice.jar\"" | C:\ProgramData\Oracle\Java\javapath\java.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Payment_Advice = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\Payment_Advice.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 4432 wrote to memory of 3500 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Windows\SYSTEM32\cmd.exe |
| PID 4432 wrote to memory of 3500 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Windows\SYSTEM32\cmd.exe |
| PID 4432 wrote to memory of 2088 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Program Files\Java\jre1.8.0_66\bin\java.exe |
| PID 4432 wrote to memory of 2088 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Program Files\Java\jre1.8.0_66\bin\java.exe |
| PID 3500 wrote to memory of 2128 | N/A | C:\Windows\SYSTEM32\cmd.exe | C:\Windows\system32\schtasks.exe |
| PID 3500 wrote to memory of 2128 | 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\Payment_Advice.jar
C:\Windows\SYSTEM32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Payment_Advice.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\Payment_Advice.jar"
C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Payment_Advice.jar"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| 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 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 8.8.8.8:53 | efcc.duckdns.org | udp |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 8.8.8.8:53 | 27.178.89.13.in-addr.arpa | udp |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| NL | 103.212.81.155:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp |
Files
memory/4432-137-0x0000000002550000-0x0000000003550000-memory.dmp
memory/4432-144-0x0000000000970000-0x0000000000971000-memory.dmp
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Payment_Advice.jar
| MD5 | 81672f4c4a4b89a9753e55e26d393678 |
| SHA1 | 134e34b47bd0e38424472903f358be7a913051a6 |
| SHA256 | 155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 |
| SHA512 | 6d3976df4a86e038d528c932562142817cba8ff8f00958032440673b13bc110af4e9837700a2b0ccf59f3de84aa0fe0de82e8195f1213b71fa93d9cd18f97010 |
C:\Users\Admin\AppData\Roaming\Payment_Advice.jar
| MD5 | 81672f4c4a4b89a9753e55e26d393678 |
| SHA1 | 134e34b47bd0e38424472903f358be7a913051a6 |
| SHA256 | 155945b133a7d5fe816d79c352268273f7150c695ada43ee9c5d7565f8a1e550 |
| SHA512 | 6d3976df4a86e038d528c932562142817cba8ff8f00958032440673b13bc110af4e9837700a2b0ccf59f3de84aa0fe0de82e8195f1213b71fa93d9cd18f97010 |
memory/2088-158-0x0000000002BA0000-0x0000000003BA0000-memory.dmp
C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp
| MD5 | 50c9dc889cea99938b9d6c582c83a6ee |
| SHA1 | 140f70e7675e30756277037f1911680b460cc168 |
| SHA256 | cedff0fe5b262df48d729f84c1d00e93985e72af0280ab577119da0e18e8d5cf |
| SHA512 | ad04b0dfc875dd79c213fac2440c447bca90ce14d808b0edec2b3649e8c8c63732b36cd7c72c1cb59f5efc98054fbc828277180bfb78854738b848a83f904c2f |
memory/2088-170-0x0000000002BA0000-0x0000000003BA0000-memory.dmp