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| File name: | Client-built.exe |
| Full analysis: | https://app.any.run/tasks/cfdd6591-cd9c-4f9c-b4d1-75660a02dc3a |
| 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: | July 12, 2020, 21:59:56 |
| 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: | C52421E67986B29B1EB10B8954379586 |
| SHA1: | B781CC014B54AA8182F4C1AF4EF68CE0885CF79E |
| SHA256: | C1173DFABFDA31316BFDDED59C1AA76DF3373CFC5F71C07774E712EB880F0028 |
| SSDEEP: | 6144:TI6bPXhLApfps+ytrlTR/Y8bS0UiJMCV9///HlgGTO:smhAphyFQgUiZV1FgyO |
MALICIOUS
Drops/Copies Quasar RAT executable
- Client-built.exe (PID: 1816)
Changes the autorun value in the registry
- Client-built.exe (PID: 1816)
- Dllhost.exe (PID: 4012)
QUASAR was detected
- Client-built.exe (PID: 1816)
- Dllhost.exe (PID: 4012)
SUSPICIOUS
Executable content was dropped or overwritten
- Client-built.exe (PID: 1816)
Starts itself from another location
- Client-built.exe (PID: 1816)
Creates files in the user directory
- Client-built.exe (PID: 1816)
- Dllhost.exe (PID: 4012)
Checks for external IP
- Client-built.exe (PID: 1816)
- Dllhost.exe (PID: 4012)
INFO
No info indicators.
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.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2020:07:12 23:59:26+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 352768 |
| InitializedDataSize: | 3072 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x5814e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.3.0.0 |
| ProductVersionNumber: | 1.3.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | - |
| FileVersion: | 1.3.0.0 |
| InternalName: | Client.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFileName: | Client.exe |
| ProductName: | - |
| ProductVersion: | 1.3.0.0 |
| AssemblyVersion: | 1.3.0.0 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 12-Jul-2020 21:59:26 |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | - |
| FileVersion: | 1.3.0.0 |
| InternalName: | Client.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFilename: | Client.exe |
| ProductName: | - |
| ProductVersion: | 1.3.0.0 |
| Assembly Version: | 1.3.0.0 |
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: | 12-Jul-2020 21:59:26 |
| 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 | 0x00056154 | 0x00056200 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.44641 |
.rsrc | 0x0005A000 | 0x00000A00 | 0x00000A00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.23597 |
.reloc | 0x0005C000 | 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 | 5.22615 | 1171 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
35
Monitored processes
2
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 1816 | "C:\Users\admin\AppData\Local\Temp\Client-built.exe" | C:\Users\admin\AppData\Local\Temp\Client-built.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.3.0.0 | ||||
| 4012 | "C:\Users\admin\AppData\Roaming\Dllhost\Dllhost.exe" | C:\Users\admin\AppData\Roaming\Dllhost\Dllhost.exe | Client-built.exe | |
User: admin Integrity Level: MEDIUM Version: 1.3.0.0 | ||||
Total events
89
Read events
63
Write events
26
Delete events
0
Modification events
| (PID) Process: | (1816) Client-built.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client-built_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (1816) Client-built.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client-built_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (1816) Client-built.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client-built_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (1816) Client-built.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client-built_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (1816) Client-built.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client-built_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (1816) Client-built.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client-built_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (1816) Client-built.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client-built_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (1816) Client-built.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client-built_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (1816) Client-built.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client-built_RASMANCS |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (1816) Client-built.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client-built_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 | |
|---|---|---|---|---|
| 4012 | Dllhost.exe | C:\Users\admin\AppData\Roaming\Logs\07-12-2020 | binary | |
MD5:329FEA1D659BF93F5137F1BCA44D81AA | SHA256:017EFB6D8C86D6EDF021C5D43F68F4996880D0E5845F83FBD1F8F76EFE33655D | |||
| 1816 | Client-built.exe | C:\Users\admin\AppData\Roaming\Dllhost\Dllhost.exe | executable | |
MD5:C52421E67986B29B1EB10B8954379586 | SHA256:C1173DFABFDA31316BFDDED59C1AA76DF3373CFC5F71C07774E712EB880F0028 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
6
DNS requests
3
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1816 | Client-built.exe | GET | 200 | 208.95.112.1:80 | http://ip-api.com/json/ | unknown | text | 281 b | shared |
4012 | Dllhost.exe | GET | 200 | 208.95.112.1:80 | http://ip-api.com/json/ | unknown | text | 281 b | shared |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4012 | Dllhost.exe | 208.95.112.1:80 | ip-api.com | IBURST | — | malicious |
1816 | Client-built.exe | 208.95.112.1:80 | ip-api.com | IBURST | — | malicious |
4012 | Dllhost.exe | 192.169.69.25:1604 | eceda.duckdns.org | Wowrack.com | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
ip-api.com |
| shared |
eceda.duckdns.org |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1816 | Client-built.exe | Potential Corporate Privacy Violation | ET POLICY External IP Lookup ip-api.com |
1816 | Client-built.exe | Potential Corporate Privacy Violation | AV POLICY Internal Host Retrieving External IP Address (ip-api. com) |
1816 | Client-built.exe | A Network Trojan was detected | REMOTE [PTsecurity] Quasar.RAT IP Lookup |
4012 | Dllhost.exe | Potential Corporate Privacy Violation | ET POLICY External IP Lookup ip-api.com |
4012 | Dllhost.exe | Potential Corporate Privacy Violation | AV POLICY Internal Host Retrieving External IP Address (ip-api. com) |
4012 | Dllhost.exe | A Network Trojan was detected | REMOTE [PTsecurity] Quasar.RAT IP Lookup |
— | — | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
— | — | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
2 ETPRO signatures available at the full report