| File name: | FPlus.exe |
| Full analysis: | https://app.any.run/tasks/4072961b-5c56-44d1-8c9e-9d35d1b46b5a |
| Verdict: | Malicious activity |
| Threats: | AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions. |
| Analysis date: | July 21, 2024, 12:41:33 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | 604414F30BF1F4782BAC7344BD04FA40 |
| SHA1: | 2ABFC3F34D637A276F83AFE5BD1B1DF2C7148150 |
| SHA256: | 65FB5F9AA69A5D7C077440E2B639E4144B8C4D3DB8AC04E74BDE87C86C51FBBA |
| SSDEEP: | 49152:cdgGOhX02hD2nPiLq3A6770DODdl/rADxXhCk/3DgG8Iy9j7JoOXOXVttgHzvrLd:j2nP6q3A6770DODdl/rADxRLDg2gLE |
MALICIOUS
Drops the executable file immediately after the start
- FPlus.exe (PID: 1032)
Changes the autorun value in the registry
- FPlus.exe (PID: 1032)
- FPlus.exe (PID: 3328)
ASYNCRAT has been detected (SURICATA)
- FPlus.exe (PID: 3328)
QUASAR has been detected (YARA)
- FPlus.exe (PID: 3328)
Connects to the CnC server
- FPlus.exe (PID: 3328)
QUASAR has been detected (SURICATA)
- FPlus.exe (PID: 3328)
SUSPICIOUS
Executable content was dropped or overwritten
- FPlus.exe (PID: 1032)
Starts itself from another location
- FPlus.exe (PID: 1032)
Connects to unusual port
- FPlus.exe (PID: 3328)
Contacting a server suspected of hosting an CnC
- FPlus.exe (PID: 3328)
INFO
Creates files or folders in the user directory
- FPlus.exe (PID: 1032)
Checks supported languages
- FPlus.exe (PID: 1032)
- FPlus.exe (PID: 3328)
Reads the computer name
- FPlus.exe (PID: 1032)
- FPlus.exe (PID: 3328)
Reads the machine GUID from the registry
- FPlus.exe (PID: 1032)
- FPlus.exe (PID: 3328)
Reads Environment values
- FPlus.exe (PID: 1032)
- FPlus.exe (PID: 3328)
Reads the software policy settings
- FPlus.exe (PID: 3328)
Disables trace logs
- FPlus.exe (PID: 3328)
Checks proxy server information
- FPlus.exe (PID: 3328)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Quasar
(PID) Process(3328) FPlus.exe
Version1.4.1
C2 (2)103.252.137.65:4782
Sub_DirPlus24h.com
Install_NameFPlus.exe
Mutex6a8f5a86-a5dc-4b2c-a9e8-67aafaf3d917
StartupFPlus
TagFPlus
LogDirLogs
SignatureUXQjsn2dX2+5EAh+uPlNhTBB/s7B0sJunI/efjNsvFDBEgksaFaNKDd8zUKxeexSCAGGzeLOFZNBAQbo7j1TugW6zdTGzrwxGcWcBHD3p0vLokLqIzSW6llLSabn+kB5tbueFBcKK/HfqazK7VRZj5BOa2LfyttenNiv57LqrxM0zijIhy4xOe2+UuKVWqyc5vh4uOot+mrnXQ1tZqdrhqeS97hteanqdDCWqRTpdE5Et2NNnSzngifXEdYbx1hPJVrFuzBBhrAErRfKEPAWl6VEVrHfP0bGHWpluEEw/P+X...
CertificateMIIE9DCCAtygAwIBAgIQAJlZRmCWLoEnlioDVewI4zANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI0MDcxMjA3NTM1MloYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAluNk+qLWvQYeyWeC3sGE96S861szVY84LyMjtaTCALfgz3YlWH6eP1No6v+0xpMixvi61sDp...
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (63.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (23.8) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.6) |
| .exe | | | Win32 Executable (generic) (3.8) |
| .exe | | | Generic Win/DOS Executable (1.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2023:03:12 16:16:39+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 3261440 |
| InitializedDataSize: | 181248 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x31e3ee |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 4.8.4.0 |
| ProductVersionNumber: | 4.8.4.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | FPlus |
| FileVersion: | 4.8.4.0 |
| InternalName: | FPlus.exe |
| LegalCopyright: | Copyright ©️ Microsoft 2019 |
| LegalTrademarks: | - |
| OriginalFileName: | FPlus.exe |
| ProductName: | FPlus |
| ProductVersion: | 4.8.4.0 |
| AssemblyVersion: | 4.8.4.0 |
Total processes
139
Monitored processes
3
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1032 | "C:\Users\admin\AppData\Local\Temp\FPlus.exe" | C:\Users\admin\AppData\Local\Temp\FPlus.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: FPlus Exit code: 3 Version: 4.8.4.0 Modules
| |||||||||||||||
| 3328 | "C:\Users\admin\AppData\Roaming\Plus24h.com\FPlus.exe" | C:\Users\admin\AppData\Roaming\Plus24h.com\FPlus.exe | FPlus.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: FPlus Version: 4.8.4.0 Modules
Quasar(PID) Process(3328) FPlus.exe Version1.4.1 C2 (2)103.252.137.65:4782 Sub_DirPlus24h.com Install_NameFPlus.exe Mutex6a8f5a86-a5dc-4b2c-a9e8-67aafaf3d917 StartupFPlus TagFPlus LogDirLogs SignatureUXQjsn2dX2+5EAh+uPlNhTBB/s7B0sJunI/efjNsvFDBEgksaFaNKDd8zUKxeexSCAGGzeLOFZNBAQbo7j1TugW6zdTGzrwxGcWcBHD3p0vLokLqIzSW6llLSabn+kB5tbueFBcKK/HfqazK7VRZj5BOa2LfyttenNiv57LqrxM0zijIhy4xOe2+UuKVWqyc5vh4uOot+mrnXQ1tZqdrhqeS97hteanqdDCWqRTpdE5Et2NNnSzngifXEdYbx1hPJVrFuzBBhrAErRfKEPAWl6VEVrHfP0bGHWpluEEw/P+X... CertificateMIIE9DCCAtygAwIBAgIQAJlZRmCWLoEnlioDVewI4zANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTI0MDcxMjA3NTM1MloYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAluNk+qLWvQYeyWeC3sGE96S861szVY84LyMjtaTCALfgz3YlWH6eP1No6v+0xpMixvi61sDp... | |||||||||||||||
| 7608 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
5 613
Read events
5 597
Write events
16
Delete events
0
Modification events
| (PID) Process: | (1032) FPlus.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | FPlus |
Value: "C:\Users\admin\AppData\Roaming\Plus24h.com\FPlus.exe" | |||
| (PID) Process: | (3328) FPlus.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | FPlus |
Value: "C:\Users\admin\AppData\Roaming\Plus24h.com\FPlus.exe" | |||
| (PID) Process: | (3328) FPlus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\FPlus_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3328) FPlus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\FPlus_RASAPI32 |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (3328) FPlus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\FPlus_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3328) FPlus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\FPlus_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (3328) FPlus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\FPlus_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
| (PID) Process: | (3328) FPlus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\FPlus_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3328) FPlus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\FPlus_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (3328) FPlus.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\FPlus_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1032 | FPlus.exe | C:\Users\admin\AppData\Roaming\Plus24h.com\FPlus.exe | executable | |
MD5:604414F30BF1F4782BAC7344BD04FA40 | SHA256:65FB5F9AA69A5D7C077440E2B639E4144B8C4D3DB8AC04E74BDE87C86C51FBBA | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
36
DNS requests
14
Threats
4
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 | 192.168.100.255:137 | — | — | — | whitelisted |
4716 | svchost.exe | 40.126.32.68:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | unknown |
5620 | MoUsoCoreWorker.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | unknown |
7856 | svchost.exe | 4.209.33.156:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | US | unknown |
4032 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
2760 | svchost.exe | 40.113.110.67:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3328 | FPlus.exe | 103.252.137.65:4782 | — | — | — | malicious |
3328 | FPlus.exe | 195.201.57.90:443 | ipwho.is | Hetzner Online GmbH | DE | unknown |
3384 | slui.exe | 20.83.72.98:443 | activation-v2.sls.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
login.live.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
ipwho.is |
| malicious |
activation-v2.sls.microsoft.com |
| whitelisted |
licensing.mp.microsoft.com |
| whitelisted |
arc.msn.com |
| whitelisted |
www.bing.com |
| whitelisted |
fd.api.iris.microsoft.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2168 | svchost.exe | Potentially Bad Traffic | ET INFO External IP Lookup Domain in DNS Lookup (ipwho .is) |
3328 | FPlus.exe | Domain Observed Used for C2 Detected | ET MALWARE Generic AsyncRAT Style SSL Cert |
3328 | FPlus.exe | Domain Observed Used for C2 Detected | ET MALWARE Observed Malicious SSL Cert (Quasar CnC) |
3328 | FPlus.exe | Malware Command and Control Activity Detected | REMOTE [ANY.RUN] QuasarRAT Successful Connection (GCM_SHA384) |