| File name: | Cat.jpg |
| Full analysis: | https://app.any.run/tasks/45acea27-ba0e-4da8-a9f6-b662486ec633 |
| 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: | September 30, 2020, 10:07:05 |
| 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: | 68125A7F390CAE7D4B25FC95C949E3C8 |
| SHA1: | 980FB207607996B08962AAC0A0B384F9471856C6 |
| SHA256: | B41C9BD430DCB90F05AB42035D22FB3A4D7040A401E8CB1BC7466146539A801E |
| SSDEEP: | 12288:+kxfIayFMKjr2fBjaTxpQbZu+SK5g71sMT0COa:+wPyFMhGpt+bE1hAs |
MALICIOUS
Application was dropped or rewritten from another process
- $77-WindowsUpdate.exe (PID: 2432)
QUASAR was detected
- $77-WindowsUpdate.exe (PID: 2432)
SUSPICIOUS
Creates files in the user directory
- Cat.jpg.exe (PID: 828)
Executed via COM
- DllHost.exe (PID: 3400)
Checks for external IP
- $77-WindowsUpdate.exe (PID: 2432)
Executable content was dropped or overwritten
- Cat.jpg.exe (PID: 828)
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: | 2020:09:28 19:04:19+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 11 |
| CodeSize: | 660992 |
| InitializedDataSize: | 2048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xa344e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 9.27.71.6 |
| ProductVersionNumber: | 9.27.71.6 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| CompanyName: | buffer |
| FileDescription: | combatantdisconnect |
| FileVersion: | 9.27.71.6 |
| InternalName: | Cat.jpg |
| LegalCopyright: | red © puzzle |
| OriginalFileName: | Cat.jpg |
| ProductName: | carrot |
| ProductVersion: | 9.27.71.6 |
| AssemblyVersion: | 9.27.71.6 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 28-Sep-2020 17:04:19 |
| CompanyName: | buffer |
| FileDescription: | combatantdisconnect |
| FileVersion: | 9.27.71.6 |
| InternalName: | Cat.jpg |
| LegalCopyright: | red © puzzle |
| OriginalFilename: | Cat.jpg |
| ProductName: | carrot |
| ProductVersion: | 9.27.71.6 |
| Assembly Version: | 9.27.71.6 |
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: | 28-Sep-2020 17:04:19 |
| 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 | 0x000A1454 | 0x000A1600 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.82532 |
.rsrc | 0x000A4000 | 0x00000570 | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.04256 |
.reloc | 0x000A6000 | 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 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
37
Monitored processes
3
Malicious processes
1
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 828 | "C:\Users\admin\Desktop\Cat.jpg.exe" | C:\Users\admin\Desktop\Cat.jpg.exe | explorer.exe | ||||||||||||
User: admin Company: buffer Integrity Level: MEDIUM Description: combatantdisconnect Exit code: 0 Version: 9.27.71.6 Modules
| |||||||||||||||
| 2432 | "C:\Users\admin\AppData\Roaming\$77-WindowsUpdate.exe" | C:\Users\admin\AppData\Roaming\$77-WindowsUpdate.exe | Cat.jpg.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 2.1.0.0 Modules
| |||||||||||||||
| 3400 | C:\Windows\system32\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503} | C:\Windows\system32\DllHost.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: COM Surrogate Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
771
Read events
752
Write events
19
Delete events
0
Modification events
| (PID) Process: | (828) Cat.jpg.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached |
| Operation: | write | Name: | {FFE2A43C-56B9-4BF5-9A79-CC6D4285608A} {00000122-0000-0000-C000-000000000046} 0xFFFF |
Value: 010000000000000004D9517D1197D601 | |||
| (PID) Process: | (828) Cat.jpg.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Direct3D\MostRecentApplication |
| Operation: | write | Name: | Name |
Value: Cat.jpg.exe | |||
| (PID) Process: | (828) Cat.jpg.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (828) Cat.jpg.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (3400) DllHost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Direct3D\MostRecentApplication |
| Operation: | write | Name: | Name |
Value: DllHost.exe | |||
| (PID) Process: | (2432) $77-WindowsUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\$77-WindowsUpdate_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (2432) $77-WindowsUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\$77-WindowsUpdate_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (2432) $77-WindowsUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\$77-WindowsUpdate_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2432) $77-WindowsUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\$77-WindowsUpdate_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2432) $77-WindowsUpdate.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\$77-WindowsUpdate_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
Executable files
1
Suspicious files
0
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 828 | Cat.jpg.exe | C:\Users\admin\AppData\Roaming\$77-WindowsUpdate.exe | executable | |
MD5:— | SHA256:— | |||
| 828 | Cat.jpg.exe | C:\Users\admin\AppData\Roaming\576px-Catting.jpg | image | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
3
DNS requests
5
Threats
4
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2432 | $77-WindowsUpdate.exe | GET | 301 | 104.26.15.73:80 | http://freegeoip.net/xml/ | US | — | — | malicious |
2432 | $77-WindowsUpdate.exe | GET | 200 | 104.26.15.73:80 | http://freegeoip.net/shutdown | US | html | 23.3 Kb | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2432 | $77-WindowsUpdate.exe | 208.95.112.1:80 | ip-api.com | IBURST | — | malicious |
2432 | $77-WindowsUpdate.exe | 104.26.15.73:80 | freegeoip.net | Cloudflare Inc | US | shared |
2432 | $77-WindowsUpdate.exe | 50.19.252.36:80 | api.ipify.org | Amazon.com, Inc. | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
ip-api.com |
| malicious |
dns.msftncsi.com |
| shared |
freegeoip.net |
| malicious |
api.ipify.org |
| shared |
Threats
4 ETPRO signatures available at the full report