Analysis Overview
SHA256
433af927acfbda8332ff1acba40e8a658fbdfe09bfafda8d010a43a3bba534eb
Threat Level: Known bad
The file 3a635340d63f75e27e2c195dd9f0506d was found to be: Known bad.
Malicious Activity Summary
Strrat family
Modifies file permissions
Drops file in Program Files directory
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-31 15:50
Signatures
Strrat family
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-31 15:50
Reported
2024-01-05 22:30
Platform
win7-20231129-en
Max time kernel
144s
Max time network
147s
Command Line
Signatures
Processes
C:\Windows\system32\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\3a635340d63f75e27e2c195dd9f0506d.jar
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | repo1.maven.org | udp |
| US | 8.8.8.8:53 | github.com | udp |
| DE | 140.82.121.4:443 | github.com | tcp |
| US | 199.232.192.209:443 | repo1.maven.org | tcp |
| US | 199.232.192.209:443 | repo1.maven.org | tcp |
| US | 199.232.192.209:443 | repo1.maven.org | tcp |
| DE | 140.82.121.4:443 | github.com | tcp |
| DE | 140.82.121.4:443 | github.com | tcp |
| DE | 140.82.121.4:443 | github.com | tcp |
| DE | 140.82.121.4:443 | github.com | tcp |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| US | 8.8.8.8:53 | udp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | github.com | tcp |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | github.com | tcp |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | github.com | tcp |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | tcp | |
| DE | 140.82.121.4:443 | github.com | tcp |
| DE | 140.82.121.4:443 | tcp | |
| US | 8.8.8.8:53 | udp | |
| DE | 140.82.121.3:443 | tcp | |
| DE | 140.82.121.3:443 | tcp | |
| DE | 140.82.121.3:443 | tcp | |
| DE | 140.82.121.3:443 | tcp | |
| DE | 140.82.121.3:443 | tcp | |
| DE | 140.82.121.3:443 | tcp | |
| DE | 140.82.121.3:443 | tcp | |
| DE | 140.82.121.3:443 | tcp |
Files
memory/2628-8-0x0000000002690000-0x0000000005690000-memory.dmp
memory/2628-10-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-17-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-19-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-24-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-27-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-22-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-20-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-28-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-33-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-38-0x0000000002690000-0x0000000005690000-memory.dmp
memory/2628-42-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-46-0x0000000000440000-0x0000000000441000-memory.dmp
memory/2628-47-0x0000000000440000-0x0000000000441000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-31 15:50
Reported
2024-01-05 22:30
Platform
win10v2004-20231215-en
Max time kernel
156s
Max time network
171s
Command Line
Signatures
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\jvm.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\ntdll.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
| File opened for modification | C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4724 wrote to memory of 2884 | N/A | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | C:\Windows\system32\icacls.exe |
| PID 4724 wrote to memory of 2884 | N/A | C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe | C:\Windows\system32\icacls.exe |
Processes
C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\3a635340d63f75e27e2c195dd9f0506d.jar
C:\Windows\system32\icacls.exe
C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | github.com | udp |
| US | 8.8.8.8:53 | repo1.maven.org | udp |
| DE | 140.82.121.4:443 | github.com | tcp |
| US | 199.232.192.209:443 | repo1.maven.org | tcp |
| US | 199.232.192.209:443 | repo1.maven.org | tcp |
| US | 199.232.192.209:443 | repo1.maven.org | tcp |
| US | 8.8.8.8:53 | 209.192.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.121.82.140.in-addr.arpa | udp |
| US | 8.8.8.8:53 | github.com | udp |
| DE | 140.82.121.4:443 | github.com | tcp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| DE | 140.82.121.4:443 | github.com | tcp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 219.183.117.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 89.16.208.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 85.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp | |
| N/A | 88.221.134.18:80 | tcp |
Files
memory/4724-4-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
| MD5 | 0af80541ba34bb35b6f1c4fb69eb08ce |
| SHA1 | a0081512af57f850390b4003e3309c28ca0dd1a1 |
| SHA256 | cd9aacf877c689a43e3e99090e7af85ba3616d28cb4abb581d942a088de40f10 |
| SHA512 | 2649667a3a661b5e634827de3c78e6e6ed6b880a8f7f616fcdcc7ae290c68c9bafc128bf544c75c618c42a65efcffdff20427fb3ca31161cbe08f385af85fbd0 |
memory/4724-12-0x000001C5BF4E0000-0x000001C5BF4E1000-memory.dmp
memory/4724-19-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-29-0x000001C5BF4E0000-0x000001C5BF4E1000-memory.dmp
memory/4724-35-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-44-0x000001C5BF4E0000-0x000001C5BF4E1000-memory.dmp
memory/4724-49-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-52-0x000001C5BF4E0000-0x000001C5BF4E1000-memory.dmp
memory/4724-54-0x000001C5BF4E0000-0x000001C5BF4E1000-memory.dmp
memory/4724-57-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-58-0x000001C5BF4E0000-0x000001C5BF4E1000-memory.dmp
memory/4724-61-0x000001C5BF4E0000-0x000001C5BF4E1000-memory.dmp
memory/4724-64-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-82-0x000001C5BF4E0000-0x000001C5BF4E1000-memory.dmp
memory/4724-94-0x000001C5BF4E0000-0x000001C5BF4E1000-memory.dmp
memory/4724-113-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-118-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-136-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-137-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-139-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-149-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-153-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp
memory/4724-161-0x000001C5C0CD0000-0x000001C5C1CD0000-memory.dmp