| File name: | Squirrel.exe |
| Full analysis: | https://app.any.run/tasks/ee01cb47-e8c2-4aae-a106-0638042335d5 |
| Verdict: | Malicious activity |
| Analysis date: | April 01, 2024, 06:57:30 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | 48ADEA5BBEFA891F6C03E793D7C60379 |
| SHA1: | 41A23672A4A90ED62E0CDE0D8E0CDE5F9EA9D911 |
| SHA256: | EE31EBE4B3433A97AE6F62925183717F91034F13692253D19B888F4DA3600664 |
| SSDEEP: | 49152:Cli7w7HH+lZRsc/jfV8z5Lmo1ZojJDxn0YzKWysZ3BTdTxO:TAc/h8qo1ZQJlFKWycTdTxO |
MALICIOUS
Drops the executable file immediately after the start
- Squirrel.exe (PID: 3500)
SUSPICIOUS
Process drops legitimate windows executable
- Squirrel.exe (PID: 3500)
Starts a Microsoft application from unusual location
- Squirrel.exe (PID: 3500)
- Update.exe (PID: 748)
- Squirrel.exe (PID: 2744)
Reads the Internet Settings
- Squirrel.exe (PID: 3500)
- Update.exe (PID: 748)
- Squirrel.exe (PID: 2744)
Reads settings of System Certificates
- Squirrel.exe (PID: 3500)
- Update.exe (PID: 748)
- Squirrel.exe (PID: 2744)
INFO
Checks supported languages
- Squirrel.exe (PID: 3500)
- wmpnscfg.exe (PID: 2440)
- Update.exe (PID: 748)
- Squirrel.exe (PID: 2744)
Reads the computer name
- Squirrel.exe (PID: 3500)
- wmpnscfg.exe (PID: 2440)
- Update.exe (PID: 748)
- Squirrel.exe (PID: 2744)
Reads Environment values
- Squirrel.exe (PID: 3500)
- Squirrel.exe (PID: 2744)
- Update.exe (PID: 748)
Reads Microsoft Office registry keys
- Squirrel.exe (PID: 3500)
- Squirrel.exe (PID: 2744)
- Update.exe (PID: 748)
Reads the machine GUID from the registry
- Squirrel.exe (PID: 3500)
- Squirrel.exe (PID: 2744)
- Update.exe (PID: 748)
Reads the software policy settings
- Squirrel.exe (PID: 3500)
- Update.exe (PID: 748)
- Squirrel.exe (PID: 2744)
Manual execution by a user
- wmpnscfg.exe (PID: 2440)
- Update.exe (PID: 748)
- Squirrel.exe (PID: 2744)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | InstallShield setup (50.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (32.2) |
| .dll | | | Win32 Dynamic Link Library (generic) (7.6) |
| .exe | | | Win32 Executable (generic) (5.2) |
| .exe | | | Generic Win/DOS Executable (2.3) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2024:01:18 20:17:57+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 2386432 |
| InitializedDataSize: | 176640 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x24891e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 3.3.13.0 |
| ProductVersionNumber: | 3.3.13.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | Microsoft Teams classic |
| CompanyName: | Microsoft Corporation |
| FileDescription: | Microsoft Teams classic |
| FileVersion: | 3.3.13.0 |
| InternalName: | Update.exe |
| LegalCopyright: | Microsoft Corporation |
| LegalTrademarks: | - |
| OriginalFileName: | Update.exe |
| ProductName: | Microsoft Teams |
| ProductVersion: | 3.3.13.0 |
| AssemblyVersion: | 3.3.13.0 |
Total processes
46
Monitored processes
4
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 748 | "C:\Users\admin\Desktop\Update.exe" | C:\Users\admin\Desktop\Update.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Teams classic Exit code: 4294967295 Version: 3.3.13.0 Modules
| |||||||||||||||
| 2440 | "C:\Program Files\Windows Media Player\wmpnscfg.exe" | C:\Program Files\Windows Media Player\wmpnscfg.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Media Player Network Sharing Service Configuration Application Exit code: 0 Version: 12.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2744 | "C:\Users\admin\Desktop\Squirrel.exe" | C:\Users\admin\Desktop\Squirrel.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Teams classic Exit code: 4294967295 Version: 3.3.13.0 Modules
| |||||||||||||||
| 3500 | "C:\Users\admin\Desktop\Squirrel.exe" | C:\Users\admin\Desktop\Squirrel.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Teams classic Exit code: 4294967295 Version: 3.3.13.0 Modules
| |||||||||||||||
Total events
13 384
Read events
13 318
Write events
66
Delete events
0
Modification events
| (PID) Process: | (3500) Squirrel.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Squirrel_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3500) Squirrel.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Squirrel_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3500) Squirrel.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Squirrel_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (3500) Squirrel.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Squirrel_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
| (PID) Process: | (3500) Squirrel.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Squirrel_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3500) Squirrel.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Squirrel_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (3500) Squirrel.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Squirrel_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3500) Squirrel.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Squirrel_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3500) Squirrel.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Squirrel_RASMANCS |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (3500) Squirrel.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Squirrel_RASMANCS |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
Executable files
0
Suspicious files
0
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3500 | Squirrel.exe | C:\Users\admin\Desktop\SquirrelSetup.log | text | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
7
DNS requests
3
Threats
0
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 |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
3500 | Squirrel.exe | 20.42.65.93:443 | mobile.pipe.aria.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | unknown |
748 | Update.exe | 20.42.65.93:443 | mobile.pipe.aria.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | unknown |
2744 | Squirrel.exe | 40.79.173.40:443 | mobile.pipe.aria.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | AU | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
mobile.pipe.aria.microsoft.com |
| whitelisted |
Threats
Process | Message |
|---|---|
Squirrel.exe | Squirrel.exe Information: 0 : |
Squirrel.exe | TelemetryManagerImpl creation started
|
Squirrel.exe | Starting TelemetryManager constructor
|
Squirrel.exe | Squirrel.exe Information: 0 : |
Squirrel.exe | Squirrel.exe Information: 0 : |
Squirrel.exe | Performance counters are disabled. Skipping creation of counters category.
|
Squirrel.exe | RecordBatcherTask with ID 4 started.
|
Squirrel.exe | Squirrel.exe Information: 0 : |
Squirrel.exe | SendTask with ID 6 started
|
Squirrel.exe | TelemetryManagerImpl creation finished
|