Analysis Overview
SHA256
f7232989ee2ad63a73dac3203924245ee40cafe9a641141ffd8c7768e0853351
Threat Level: Known bad
The file m_AP Remittance - L - Ref S158578-3_PDF.zip was found to be: Known bad.
Malicious Activity Summary
Strrat family
STRRAT
Drops startup file
Adds Run key to start application
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Creates scheduled task(s)
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-10-12 07:09
Signatures
Strrat family
Analysis: behavioral1
Detonation Overview
Submitted
2023-10-12 07:09
Reported
2023-10-13 12:51
Platform
win7-20230831-en
Max time kernel
118s
Max time network
132s
Command Line
Signatures
Processes
C:\Windows\system32\java.exe
java -jar "C:\Users\Admin\AppData\Local\Temp\AP Remittance - L - Ref S158578-4_PDF.jar"
Network
Files
memory/1080-8-0x0000000002100000-0x0000000005100000-memory.dmp
memory/1080-10-0x0000000000130000-0x0000000000131000-memory.dmp
memory/1080-11-0x0000000002100000-0x0000000005100000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-10-12 07:09
Reported
2023-10-13 12:52
Platform
win10v2004-20230915-en
Max time kernel
150s
Max time network
160s
Command Line
Signatures
STRRAT
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AP Remittance - L - Ref S158578-4_PDF.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-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AP Remittance - L - Ref S158578-4_PDF = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\AP Remittance - L - Ref S158578-4_PDF.jar\"" | C:\ProgramData\Oracle\Java\javapath\java.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AP Remittance - L - Ref S158578-4_PDF = "\"C:\\Program Files\\Java\\jre1.8.0_66\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\AP Remittance - L - Ref S158578-4_PDF.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 1540 wrote to memory of 4632 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Windows\SYSTEM32\cmd.exe |
| PID 1540 wrote to memory of 4632 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Windows\SYSTEM32\cmd.exe |
| PID 1540 wrote to memory of 8 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Program Files\Java\jre1.8.0_66\bin\java.exe |
| PID 1540 wrote to memory of 8 | N/A | C:\ProgramData\Oracle\Java\javapath\java.exe | C:\Program Files\Java\jre1.8.0_66\bin\java.exe |
| PID 4632 wrote to memory of 3348 | N/A | C:\Windows\SYSTEM32\cmd.exe | C:\Windows\system32\schtasks.exe |
| PID 4632 wrote to memory of 3348 | 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\AP Remittance - L - Ref S158578-4_PDF.jar"
C:\Windows\SYSTEM32\cmd.exe
cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\AP Remittance - L - Ref S158578-4_PDF.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\AP Remittance - L - Ref S158578-4_PDF.jar"
C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\AP Remittance - L - Ref S158578-4_PDF.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 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | str01.3utilities.com | udp |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:8888 | tcp | |
| US | 8.8.8.8:53 | 254.3.248.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| N/A | 127.0.0.1:8888 | tcp | |
| US | 8.8.8.8:53 | 38.148.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.22.238.8.in-addr.arpa | udp |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| N/A | 127.0.0.1:8888 | tcp | |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| N/A | 127.0.0.1:8888 | tcp | |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| N/A | 127.0.0.1:8888 | tcp | |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| N/A | 127.0.0.1:8888 | tcp | |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| N/A | 127.0.0.1:8888 | tcp | |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| N/A | 127.0.0.1:8888 | tcp | |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| N/A | 127.0.0.1:8888 | tcp | |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| N/A | 127.0.0.1:8888 | tcp | |
| US | 8.8.8.8:53 | 14.173.189.20.in-addr.arpa | udp |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
| N/A | 127.0.0.1:8888 | tcp | |
| NL | 45.81.39.61:8888 | str01.3utilities.com | tcp |
Files
memory/1540-4-0x0000000002620000-0x0000000003620000-memory.dmp
memory/1540-11-0x0000000000A00000-0x0000000000A01000-memory.dmp
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\AP Remittance - L - Ref S158578-4_PDF.jar
| MD5 | 052f8ca40a7bc61719d275dcbda72790 |
| SHA1 | a3b43585f2ec3c8ff580f3b810a1fb92a05ec249 |
| SHA256 | ccaa1364264bf43edefa2f9e1439fa02f5a667fd0f724f620c43842a8e365123 |
| SHA512 | f7497e0dd59424f35948c132895589cd2359ffdcc996cbb2495233431ea672ff13984ca7dc32022e0ab36c2395d8714191b47f4dae41eaafcdf9ed95c44427b1 |
memory/1540-23-0x0000000002620000-0x0000000003620000-memory.dmp
C:\Users\Admin\AppData\Roaming\AP Remittance - L - Ref S158578-4_PDF.jar
| MD5 | 052f8ca40a7bc61719d275dcbda72790 |
| SHA1 | a3b43585f2ec3c8ff580f3b810a1fb92a05ec249 |
| SHA256 | ccaa1364264bf43edefa2f9e1439fa02f5a667fd0f724f620c43842a8e365123 |
| SHA512 | f7497e0dd59424f35948c132895589cd2359ffdcc996cbb2495233431ea672ff13984ca7dc32022e0ab36c2395d8714191b47f4dae41eaafcdf9ed95c44427b1 |
memory/8-35-0x00000000032E0000-0x00000000042E0000-memory.dmp
C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp
| MD5 | 702df3282cc6cb46d15a2aeb11baa118 |
| SHA1 | 5c1e87c026fd8cbb6064ddb46fe67000be94f6c1 |
| SHA256 | 75e768f62982e4cd18578935b1bc1ffdeedaca8c84d77c66656770d9bf33d8e4 |
| SHA512 | 9df220dbc59d68fe6c08a59f86db87535cfa12adcf093ec1ba0fef4ed9559361d7d1e34f14ae8335e68b2c02497bc6f8028c8f01ab7fe90c455adc3480ad1b7e |
memory/8-37-0x0000000002FF0000-0x0000000002FF1000-memory.dmp
memory/8-39-0x0000000002FF0000-0x0000000002FF1000-memory.dmp
memory/8-42-0x00000000032E0000-0x00000000042E0000-memory.dmp
memory/1540-44-0x0000000002620000-0x0000000003620000-memory.dmp
memory/8-45-0x00000000032E0000-0x00000000042E0000-memory.dmp
memory/8-46-0x00000000032E0000-0x00000000042E0000-memory.dmp
memory/8-47-0x00000000032E0000-0x00000000042E0000-memory.dmp
memory/8-48-0x00000000032E0000-0x00000000042E0000-memory.dmp