| File name: | Net-Worm.Win32.Sasser |
| Full analysis: | https://app.any.run/tasks/7c061a81-d5b0-4199-b84b-513f19be80b9 |
| Verdict: | Malicious activity |
| Analysis date: | February 13, 2024, 13:50:45 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 1A2C0E6130850F8FD9B9B5309413CD00 |
| SHA1: | D0DE44BCF3CA6553307C77DA8699DBC9B5E9D56A |
| SHA256: | 09398D3F5CC102F7D932B765036E1AC1FF5DC27405D7357B81EAF48CA8EC71B8 |
| SSDEEP: | 192:5LQQpqTnBW/OyBooSpbBdbnr9w/lhUYobpCtqOjVzg9ZsAXb1r5FSfhVWdzP5eOh:yQqTBNNrbSHhqONghZrGG5LWadp |
MALICIOUS
Drops the executable file immediately after the start
- Net-Worm.Win32.Sasser.exe (PID: 2472)
Changes the autorun value in the registry
- Net-Worm.Win32.Sasser.exe (PID: 2472)
- Net-Worm.Win32.Sasser.exe (PID: 492)
SUSPICIOUS
No suspicious indicators.INFO
Checks supported languages
- Net-Worm.Win32.Sasser.exe (PID: 2472)
- Net-Worm.Win32.Sasser.exe (PID: 492)
Reads the computer name
- Net-Worm.Win32.Sasser.exe (PID: 2472)
Manual execution by a user
- Net-Worm.Win32.Sasser.exe (PID: 492)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .dll | | | Win32 Dynamic Link Library (generic) (43.5) |
|---|---|---|
| .exe | | | Win32 Executable (generic) (29.8) |
| .exe | | | Generic Win/DOS Executable (13.2) |
| .exe | | | DOS Executable Generic (13.2) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2004:05:01 11:39:48+00:00 |
| ImageFileCharacteristics: | No relocs, Executable, No line numbers, No symbols, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 6 |
| CodeSize: | 15872 |
| InitializedDataSize: | 8704 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x283e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
Total processes
38
Monitored processes
2
Malicious processes
0
Suspicious processes
2
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 492 | "C:\Users\admin\Desktop\Net-Worm.Win32.Sasser.exe" | C:\Users\admin\Desktop\Net-Worm.Win32.Sasser.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 2472 | "C:\Users\admin\Desktop\Net-Worm.Win32.Sasser.exe" | C:\Users\admin\Desktop\Net-Worm.Win32.Sasser.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
Total events
1 183
Read events
1 181
Write events
2
Delete events
0
Modification events
| (PID) Process: | (2472) Net-Worm.Win32.Sasser.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | avserve2.exe |
Value: C:\Windows\avserve2.exe | |||
| (PID) Process: | (492) Net-Worm.Win32.Sasser.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | avserve2.exe |
Value: C:\Windows\avserve2.exe | |||
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
394
DNS requests
0
Threats
1
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2472 | Net-Worm.Win32.Sasser.exe | 192.113.198.110:445 | — | Capgemini Nederland B.V. | NL | unknown |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
2472 | Net-Worm.Win32.Sasser.exe | 148.160.229.233:445 | — | — | SE | unknown |
2472 | Net-Worm.Win32.Sasser.exe | 45.220.245.80:445 | — | ENETWORKS | ZA | unknown |
2472 | Net-Worm.Win32.Sasser.exe | 216.225.17.149:445 | — | AS-NETZERO | US | unknown |
2472 | Net-Worm.Win32.Sasser.exe | 116.10.237.192:445 | — | Chinanet | CN | unknown |
2472 | Net-Worm.Win32.Sasser.exe | 84.136.45.191:445 | — | Deutsche Telekom AG | DE | unknown |
2472 | Net-Worm.Win32.Sasser.exe | 111.132.114.134:445 | — | China TieTong Telecommunications Corporation | CN | unknown |
2472 | Net-Worm.Win32.Sasser.exe | 192.168.244.161:445 | — | — | — | unknown |
DNS requests
Threats
PID | Process | Class | Message |
|---|---|---|---|
2472 | Net-Worm.Win32.Sasser.exe | Misc activity | ET SCAN Behavioral Unusual Port 445 traffic Potential Scan or Infection |