Analysis Overview
SHA256
4b8d0b78d89d1907b33b64cd146900580c7d50771ad7f224c4aaebec14eb3212
Threat Level: Known bad
The file PaymentAdvicejarjarjar.jar was found to be: Known bad.
Malicious Activity Summary
STRRAT
Drops startup file
Adds Run key to start application
Uses Task Scheduler COM API
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-06-30 13:56
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-06-30 13:56
Reported
2023-06-30 13:59
Platform
win7-20230621-en
Max time kernel
139s
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\PaymentAdvicejarjarjar.jar | C:\Windows\system32\java.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PaymentAdvicejarjarjar = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\PaymentAdvicejarjarjar.jar\"" | C:\Windows\system32\java.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3950455397-3229124517-1686476975-1000\Software\Microsoft\Windows\CurrentVersion\Run\PaymentAdvicejarjarjar = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\PaymentAdvicejarjarjar.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 1876 wrote to memory of 268 | N/A | C:\Windows\system32\java.exe | C:\Windows\system32\cmd.exe |
| PID 1876 wrote to memory of 268 | N/A | C:\Windows\system32\java.exe | C:\Windows\system32\cmd.exe |
| PID 1876 wrote to memory of 268 | N/A | C:\Windows\system32\java.exe | C:\Windows\system32\cmd.exe |
| PID 1876 wrote to memory of 752 | N/A | C:\Windows\system32\java.exe | C:\Program Files\Java\jre7\bin\java.exe |
| PID 1876 wrote to memory of 752 | N/A | C:\Windows\system32\java.exe | C:\Program Files\Java\jre7\bin\java.exe |
| PID 1876 wrote to memory of 752 | N/A | C:\Windows\system32\java.exe | C:\Program Files\Java\jre7\bin\java.exe |
| PID 268 wrote to memory of 856 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\schtasks.exe |
| PID 268 wrote to memory of 856 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\schtasks.exe |
| PID 268 wrote to memory of 856 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Windows\system32\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\PaymentAdvicejarjarjar.jar
C:\Windows\system32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PaymentAdvicejarjarjar.jar"
C:\Program Files\Java\jre7\bin\java.exe
"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\PaymentAdvicejarjarjar.jar"
C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PaymentAdvicejarjarjar.jar"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | efcc.duckdns.org | udp |
| US | 79.110.49.161:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 79.110.49.161:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 79.110.49.161:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 8.8.8.8:53 | efcc.duckdns.org | udp |
| US | 79.110.49.161:1243 | efcc.duckdns.org | tcp |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 79.110.49.161:1243 | efcc.duckdns.org | tcp |
Files
memory/1876-63-0x0000000000120000-0x0000000000121000-memory.dmp
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\PaymentAdvicejarjarjar.jar
| MD5 | 4761d770468b1b41eb0aa26c57e4e605 |
| SHA1 | d5674e55de3521a89b9e0b04bac2b96bf7d187f4 |
| SHA256 | 4b8d0b78d89d1907b33b64cd146900580c7d50771ad7f224c4aaebec14eb3212 |
| SHA512 | 4feb251474ac747ff07df3a29c1c70ba0781df2759e90352433500b03143e8f78273087dc17c660b32c7cb62fa5d975daef10dfae52bfb7729d5a007fa8f472c |
C:\Users\Admin\AppData\Roaming\PaymentAdvicejarjarjar.jar
| MD5 | 4761d770468b1b41eb0aa26c57e4e605 |
| SHA1 | d5674e55de3521a89b9e0b04bac2b96bf7d187f4 |
| SHA256 | 4b8d0b78d89d1907b33b64cd146900580c7d50771ad7f224c4aaebec14eb3212 |
| SHA512 | 4feb251474ac747ff07df3a29c1c70ba0781df2759e90352433500b03143e8f78273087dc17c660b32c7cb62fa5d975daef10dfae52bfb7729d5a007fa8f472c |
memory/752-80-0x00000000000B0000-0x00000000000B1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-06-30 13:56
Reported
2023-06-30 13:59
Platform
win10v2004-20230621-en
Max time kernel
133s
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\PaymentAdvicejarjarjar.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-1-5-21-508929744-1894537824-211734425-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PaymentAdvicejarjarjar = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\PaymentAdvicejarjarjar.jar\"" | C:\ProgramData\Oracle\Java\javapath\java.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PaymentAdvicejarjarjar = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\PaymentAdvicejarjarjar.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 2712 wrote to memory of 3728 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Windows\SYSTEM32\cmd.exe |
| PID 2712 wrote to memory of 3728 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Windows\SYSTEM32\cmd.exe |
| PID 2712 wrote to memory of 4132 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Program Files\Java\jre1.8.0_66\bin\java.exe |
| PID 2712 wrote to memory of 4132 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Program Files\Java\jre1.8.0_66\bin\java.exe |
| PID 3728 wrote to memory of 3800 | N/A | C:\Windows\SYSTEM32\cmd.exe | C:\Windows\system32\schtasks.exe |
| PID 3728 wrote to memory of 3800 | N/A | C:\Windows\SYSTEM32\cmd.exe | C:\Windows\system32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\ProgramData\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\PaymentAdvicejarjarjar.jar
C:\Windows\SYSTEM32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PaymentAdvicejarjarjar.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\PaymentAdvicejarjarjar.jar"
C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PaymentAdvicejarjarjar.jar"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.3.197.209.in-addr.arpa | udp |
| US | 8.8.8.8:53 | efcc.duckdns.org | udp |
| US | 79.110.49.161:1243 | efcc.duckdns.org | tcp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| NL | 178.79.208.1:80 | tcp | |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 20.189.173.2:443 | tcp | |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 79.110.49.161:1243 | efcc.duckdns.org | tcp |
| US | 8.8.8.8:53 | 233.141.123.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:1243 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| US | 79.110.49.161:1243 | efcc.duckdns.org | tcp |
| GB | 96.16.110.41:443 | tcp | |
| US | 8.8.8.8:53 | 202.74.101.95.in-addr.arpa | udp |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 79.110.49.161:1243 | efcc.duckdns.org | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:1243 | tcp | |
| US | 8.8.8.8:53 | efcc.duckdns.org | udp |
| US | 79.110.49.161:1243 | efcc.duckdns.org | tcp |
Files
memory/2712-143-0x0000000000790000-0x0000000000791000-memory.dmp
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\PaymentAdvicejarjarjar.jar
| MD5 | 4761d770468b1b41eb0aa26c57e4e605 |
| SHA1 | d5674e55de3521a89b9e0b04bac2b96bf7d187f4 |
| SHA256 | 4b8d0b78d89d1907b33b64cd146900580c7d50771ad7f224c4aaebec14eb3212 |
| SHA512 | 4feb251474ac747ff07df3a29c1c70ba0781df2759e90352433500b03143e8f78273087dc17c660b32c7cb62fa5d975daef10dfae52bfb7729d5a007fa8f472c |
C:\Users\Admin\AppData\Roaming\PaymentAdvicejarjarjar.jar
| MD5 | 4761d770468b1b41eb0aa26c57e4e605 |
| SHA1 | d5674e55de3521a89b9e0b04bac2b96bf7d187f4 |
| SHA256 | 4b8d0b78d89d1907b33b64cd146900580c7d50771ad7f224c4aaebec14eb3212 |
| SHA512 | 4feb251474ac747ff07df3a29c1c70ba0781df2759e90352433500b03143e8f78273087dc17c660b32c7cb62fa5d975daef10dfae52bfb7729d5a007fa8f472c |
C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp
| MD5 | abad1cc2ad6bc17b455a5e57f8f70847 |
| SHA1 | d31feaa429c6fe6043f90a9d9d9f514ae31252ad |
| SHA256 | b5c1d616452de2d034e6f5534925a1e89d83b37d59045fa482d26584e40485dd |
| SHA512 | b367fc2fe872b39c0d1a7c069992d3670a6609bfc9c047df6182f983c2dcc2183bc1027eac3b08648287ce5f3dbd1c1fcb40fbae10ee92de0e4c64a2571f461a |
memory/4132-166-0x0000000000FD0000-0x0000000000FD1000-memory.dmp