| File name: | 777.exe |
| Full analysis: | https://app.any.run/tasks/8b8164ff-7419-4dde-9d52-1a59c8c78de1 |
| Verdict: | Malicious activity |
| Threats: | Stealc is a stealer malware that targets victims’ sensitive data, which it exfiltrates from browsers, messaging apps, and other software. The malware is equipped with advanced features, including fingerprinting, control panel, evasion mechanisms, string obfuscation, etc. Stealc establishes persistence and communicates with its C2 server through HTTP POST requests. |
| Analysis date: | July 20, 2024, 17:08:46 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (console) Intel 80386, for MS Windows |
| MD5: | DA31C742505D605A2C25DACC8BCB59D5 |
| SHA1: | E95E1DD2A958C2BE680A1DDA4266BBE707BB4D94 |
| SHA256: | 590FA6207502643C9F99D6B14207498CD4205F208F40D568C3202C53E20A581D |
| SSDEEP: | 12288:fuJHP8pVPXVg1EYyQHBkg8Iw2LSBul5VxQbHHzWIs1q:RjX21EYydj2LSBujVxQbHT+1 |
MALICIOUS
Drops the executable file immediately after the start
- 777.exe (PID: 5636)
STEALC has been detected (SURICATA)
- RegAsm.exe (PID: 6928)
Stealers network behavior
- RegAsm.exe (PID: 6928)
Connects to the CnC server
- RegAsm.exe (PID: 6928)
SUSPICIOUS
Reads security settings of Internet Explorer
- RegAsm.exe (PID: 6928)
Contacting a server suspected of hosting an CnC
- RegAsm.exe (PID: 6928)
Windows Defender mutex has been found
- RegAsm.exe (PID: 6928)
INFO
Checks supported languages
- RegAsm.exe (PID: 6928)
- 777.exe (PID: 5636)
Reads the computer name
- RegAsm.exe (PID: 6928)
Checks proxy server information
- RegAsm.exe (PID: 6928)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (42.2) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (37.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.8) |
| .exe | | | Win32 Executable (generic) (6) |
| .exe | | | Generic Win/DOS Executable (2.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2024:07:19 12:58:12+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 14.39 |
| CodeSize: | 147456 |
| InitializedDataSize: | 234496 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x8bef |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows command line |
Total processes
142
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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5636 | "C:\Users\admin\Desktop\777.exe" | C:\Users\admin\Desktop\777.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 6928 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | 777.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
| 8088 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | 777.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
802
Read events
791
Write events
11
Delete events
0
Modification events
| (PID) Process: | (6928) RegAsm.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (6928) RegAsm.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (6928) RegAsm.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (6928) RegAsm.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (6928) RegAsm.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (6928) RegAsm.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (6928) RegAsm.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
37
DNS requests
13
Threats
4
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
6928 | RegAsm.exe | POST | 200 | 188.114.96.3:80 | http://Newlinkdsdsjsjdsjsdjsdj.top/eb6f29c6a60b3865.php | unknown | — | — | unknown |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
— | — | 192.168.100.255:137 | — | — | — | whitelisted |
4716 | svchost.exe | 20.190.160.20:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
5620 | MoUsoCoreWorker.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 4.209.32.67:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | US | unknown |
2760 | svchost.exe | 40.113.110.67:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 40.91.76.224:443 | activation-v2.sls.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
— | — | 20.190.160.20:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4032 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
6928 | RegAsm.exe | 188.114.96.3:80 | newlinkdsdsjsjdsjsdjsdj.top | CLOUDFLARENET | NL | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
login.live.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
newlinkdsdsjsjdsjsdjsdj.top |
| unknown |
arc.msn.com |
| whitelisted |
www.bing.com |
| whitelisted |
fd.api.iris.microsoft.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2168 | svchost.exe | Potentially Bad Traffic | ET DNS Query to a *.top domain - Likely Hostile |
6928 | RegAsm.exe | Potentially Bad Traffic | ET INFO HTTP Request to a *.top domain |
6928 | RegAsm.exe | Malware Command and Control Activity Detected | STEALER [ANY.RUN] Stealc HTTP POST Request |
6928 | RegAsm.exe | Malware Command and Control Activity Detected | ET MALWARE [SEKOIA.IO] Win32/Stealc C2 Check-in |