| File name: | skeet loader.exe |
| Full analysis: | https://app.any.run/tasks/1899dd28-8712-4020-8dd2-f5ec78b93185 |
| Verdict: | Malicious activity |
| Threats: | Quasar is a very popular RAT in the world thanks to its code being available in open-source. This malware can be used to control the victim’s computer remotely. |
| Analysis date: | April 10, 2020, 17:41:46 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | C0C85F787ED24A9E1B7626CDF9F864DB |
| SHA1: | E01049B770788D1705D7D110D1239921039FA5FA |
| SHA256: | F407CC9D2829C23FD59700C6D46E1D3BEBD68BFCBCC28BFB5920C63708382B58 |
| SSDEEP: | 12288:prSgsqlvTkwWE6+wJV1U4+iFv5FAzcIcbOhChx:prSu1dqPGSROzTw |
MALICIOUS
Uses Task Scheduler to run other applications
- skeet loader.exe (PID: 2284)
- WinUpdt.exe (PID: 2248)
- skeet loader.exe (PID: 564)
Loads the Task Scheduler COM API
- schtasks.exe (PID: 3064)
- schtasks.exe (PID: 1520)
- schtasks.exe (PID: 3924)
- schtasks.exe (PID: 3244)
QUASAR was detected
- RegAsm.exe (PID: 2740)
SUSPICIOUS
Executable content was dropped or overwritten
- skeet loader.exe (PID: 2284)
Executed via Task Scheduler
- WinUpdt.exe (PID: 2248)
Creates files in the user directory
- skeet loader.exe (PID: 2284)
- RegAsm.exe (PID: 2740)
Connects to unusual port
- RegAsm.exe (PID: 2740)
Checks for external IP
- RegAsm.exe (PID: 2740)
INFO
Manual execution by user
- explorer.exe (PID: 3972)
- skeet loader.exe (PID: 564)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (81) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (7.2) |
| .exe | | | Win32 Executable (generic) (4.9) |
| .exe | | | Win16/32 Executable Delphi generic (2.2) |
| .exe | | | Generic Win/DOS Executable (2.2) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2020:04:10 14:38:49+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 423936 |
| InitializedDataSize: | 1536 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x696be |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | Patch |
| FileDescription: | Patch |
| FileVersion: | 1.0.0.0 |
| InternalName: | Patch.exe |
| LegalCopyright: | Copyright © 2019 |
| LegalTrademarks: | - |
| OriginalFileName: | Patch.exe |
| ProductName: | Patch |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 10-Apr-2020 12:38:49 |
| Comments: | - |
| CompanyName: | Patch |
| FileDescription: | Patch |
| FileVersion: | 1.0.0.0 |
| InternalName: | Patch.exe |
| LegalCopyright: | Copyright © 2019 |
| LegalTrademarks: | - |
| OriginalFilename: | Patch.exe |
| ProductName: | Patch |
| ProductVersion: | 1.0.0.0 |
| Assembly Version: | 1.0.0.0 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000080 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 10-Apr-2020 12:38:49 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00002000 | 0x000676C4 | 0x00067800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.10153 |
.rsrc | 0x0006A000 | 0x0000035C | 0x00000400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 2.75972 |
.reloc | 0x0006C000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.10191 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 3.27669 | 772 | UNKNOWN | UNKNOWN | RT_VERSION |
Imports
mscoree.dll |
Total processes
50
Monitored processes
9
Malicious processes
2
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 564 | "C:\Users\admin\Downloads\skeet loader.exe" | C:\Users\admin\Downloads\skeet loader.exe | — | explorer.exe | |||||||||||
User: admin Company: Patch Integrity Level: MEDIUM Description: Patch Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 1520 | "schtasks.exe" /query | C:\Windows\system32\schtasks.exe | — | skeet loader.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2248 | C:\Users\admin\AppData\Roaming\WinUpdt.exe | C:\Users\admin\AppData\Roaming\WinUpdt.exe | — | taskeng.exe | |||||||||||
User: admin Company: Patch Integrity Level: MEDIUM Description: Patch Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 2284 | "C:\Users\admin\Downloads\skeet loader.exe" | C:\Users\admin\Downloads\skeet loader.exe | explorer.exe | ||||||||||||
User: admin Company: Patch Integrity Level: MEDIUM Description: Patch Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 2740 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | skeet loader.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.7.3062.0 built by: NET472REL1 Modules
| |||||||||||||||
| 3064 | "schtasks.exe" /query | C:\Windows\system32\schtasks.exe | — | skeet loader.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3244 | "schtasks.exe" /create /sc MINUTE /tn WinUpdt /MO 1 /tr C:\Users\admin\AppData\Roaming\WinUpdt.exe | C:\Windows\system32\schtasks.exe | — | skeet loader.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3924 | "schtasks.exe" /query | C:\Windows\system32\schtasks.exe | — | WinUpdt.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3972 | "C:\Windows\explorer.exe" | C:\Windows\explorer.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
75
Read events
63
Write events
12
Delete events
0
Modification events
| (PID) Process: | (2740) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (2740) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (2740) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2740) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2740) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (2740) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (2740) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (2740) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (2740) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2740) RegAsm.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
Executable files
1
Suspicious files
1
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2740 | RegAsm.exe | C:\Users\admin\AppData\Roaming\Logs\04-10-2020 | binary | |
MD5:— | SHA256:— | |||
| 2284 | skeet loader.exe | C:\Users\admin\AppData\Roaming\WinUpdt.exe | executable | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
1
Threats
5
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2740 | RegAsm.exe | GET | 200 | 208.95.112.1:80 | http://ip-api.com/json/ | unknown | text | 290 b | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2740 | RegAsm.exe | 208.95.112.1:80 | ip-api.com | IBURST | — | malicious |
2740 | RegAsm.exe | 18.189.20.162:4782 | — | Massachusetts Institute of Technology | US | suspicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
ip-api.com |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2740 | RegAsm.exe | Potential Corporate Privacy Violation | ET POLICY External IP Lookup ip-api.com |
2740 | RegAsm.exe | Potential Corporate Privacy Violation | AV POLICY Internal Host Retrieving External IP Address (ip-api. com) |
2740 | RegAsm.exe | A Network Trojan was detected | REMOTE [PTsecurity] Quasar.RAT IP Lookup |
2740 | RegAsm.exe | A Network Trojan was detected | REMOTE [PTsecurity] Quasar |
1 ETPRO signatures available at the full report