| File name: | remcos_a.exe |
| Full analysis: | https://app.any.run/tasks/334a38d6-14ee-4146-a040-bbade0ce43a1 |
| Verdict: | Malicious activity |
| Threats: | Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. |
| Analysis date: | April 12, 2025, 08:53:46 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, 3 sections |
| MD5: | 93CECB1CD308BED330E2A3AE057D3A75 |
| SHA1: | 026B5BCC5FDCCA3E557C5F1ABA124E42FBC4D400 |
| SHA256: | 0442E74E9379E1C90EF02722B3C3E48EC747E2A44EC560BFE6042E96FF82E769 |
| SSDEEP: | 6144:DogSQdKQw/3+l8nl6+3vsVX0i1UWVVVVVVVVVVVVVVVVV:Do07w/3+l8n9vsVj1UWVVVVVVVVVVVVl |
MALICIOUS
REMCOS has been detected
- remcos_a.exe (PID: 1056)
REMCOS mutex has been found
- remcos_a.exe (PID: 1056)
REMCOS has been detected (YARA)
- remcos_a.exe (PID: 1056)
REMCOS has been detected (SURICATA)
- remcos_a.exe (PID: 1056)
SUSPICIOUS
There is functionality for taking screenshot (YARA)
- remcos_a.exe (PID: 1056)
Connects to unusual port
- remcos_a.exe (PID: 1056)
Contacting a server suspected of hosting an CnC
- remcos_a.exe (PID: 1056)
INFO
Checks supported languages
- remcos_a.exe (PID: 1056)
Reads the computer name
- remcos_a.exe (PID: 1056)
Mpress packer has been detected
- remcos_a.exe (PID: 1056)
Checks proxy server information
- slui.exe (PID: 4180)
Reads the machine GUID from the registry
- remcos_a.exe (PID: 1056)
Reads the software policy settings
- slui.exe (PID: 4180)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Remcos
(PID) Process(1056) remcos_a.exe
ERROR
TRiD
| .exe | | | Win32 Executable (generic) (52.9) |
|---|---|---|
| .exe | | | Generic Win/DOS Executable (23.5) |
| .exe | | | DOS Executable Generic (23.5) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2025:03:28 06:19:29+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit, No debug |
| PEType: | PE32 |
| LinkerVersion: | 14 |
| CodeSize: | 310784 |
| InitializedDataSize: | 130048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x75275 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Total processes
122
Monitored processes
3
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1056 | "C:\Users\admin\Desktop\remcos_a.exe" | C:\Users\admin\Desktop\remcos_a.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Modules
Remcos(PID) Process(1056) remcos_a.exe ERROR | |||||||||||||||
| 4180 | 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
| |||||||||||||||
| 7052 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | remcos_a.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
3 655
Read events
3 652
Write events
3
Delete events
0
Modification events
| (PID) Process: | (1056) remcos_a.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-NBT8SA |
| Operation: | write | Name: | licence |
Value: | |||
| (PID) Process: | (1056) remcos_a.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-NBT8SA |
| Operation: | write | Name: | time |
Value: | |||
| (PID) Process: | (1056) remcos_a.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-NBT8SA |
| Operation: | write | Name: | UID |
Value: | |||
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
2
TCP/UDP connections
24
DNS requests
3
Threats
6
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | POST | 500 | 52.161.91.37:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | unknown | xml | 512 b | whitelisted |
— | — | POST | 500 | 52.161.91.37:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | unknown | xml | 512 b | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
— | — | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1056 | remcos_a.exe | 66.113.31.17:7547 | — | STRATUSIQ | US | malicious |
3676 | slui.exe | 52.161.91.37:443 | activation-v2.sls.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
4180 | slui.exe | 52.161.91.37:443 | activation-v2.sls.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1056 | remcos_a.exe | A Network Trojan was detected | REMOTE [ANY.RUN] REMCOS TLS Connection JA3 Hash |
1056 | remcos_a.exe | Malware Command and Control Activity Detected | ET JA3 Hash - Remcos 3.x/4.x TLS Connection |
1056 | remcos_a.exe | A Network Trojan was detected | REMOTE [ANY.RUN] REMCOS TLS Connection JA3 Hash |
1056 | remcos_a.exe | Malware Command and Control Activity Detected | ET JA3 Hash - Remcos 3.x/4.x TLS Connection |
1056 | remcos_a.exe | A Network Trojan was detected | REMOTE [ANY.RUN] REMCOS TLS Connection JA3 Hash |
1056 | remcos_a.exe | Malware Command and Control Activity Detected | ET JA3 Hash - Remcos 3.x/4.x TLS Connection |