| File name: | Backdoor.exe |
| Full analysis: | https://app.any.run/tasks/b237f269-a741-44e1-bfe0-4e1b27fa9faa |
| 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: | May 11, 2024, 01:41:41 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 2BC86FE5EA8CECD9BD2F78362446E848 |
| SHA1: | AA373F4456935D242EE83004FDF3A2398B129C87 |
| SHA256: | 972E30E8C07472FAAB006935ACC3C6E1C09B0815BB259C023703FAABE4F04304 |
| SSDEEP: | 3072:UGn3BLrjOSBOpP/ySDixvvvKNy/35ENLeQJ:TnJqAvKNyhENLeQJ |
MALICIOUS
REMCOS has been detected
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
- remcos.exe (PID: 2072)
Drops the executable file immediately after the start
- Backdoor.exe (PID: 3976)
Changes the autorun value in the registry
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
Connects to the CnC server
- remcos.exe (PID: 2072)
REMCOS has been detected (SURICATA)
- remcos.exe (PID: 2072)
SUSPICIOUS
Executable content was dropped or overwritten
- Backdoor.exe (PID: 3976)
Runs PING.EXE to delay simulation
- cmd.exe (PID: 4004)
Executing commands from a ".bat" file
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
Starts CMD.EXE for commands execution
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
Reads security settings of Internet Explorer
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
Reads the Internet Settings
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
The executable file from the user directory is run by the CMD process
- remcos.exe (PID: 2072)
Contacting a server suspected of hosting an CnC
- remcos.exe (PID: 2072)
Connects to unusual port
- remcos.exe (PID: 2072)
INFO
Checks supported languages
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
- wmpnscfg.exe (PID: 1116)
Reads product name
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
Reads the computer name
- Backdoor.exe (PID: 3976)
- wmpnscfg.exe (PID: 1116)
- remcos.exe (PID: 2072)
Create files in a temporary directory
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
Reads Environment values
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
Creates files or folders in the user directory
- Backdoor.exe (PID: 3976)
- remcos.exe (PID: 2072)
Manual execution by a user
- wmpnscfg.exe (PID: 1116)
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) (35.8) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (31.7) |
| .scr | | | Windows screen saver (15) |
| .dll | | | Win32 Dynamic Link Library (generic) (7.5) |
| .exe | | | Win32 Executable (generic) (5.1) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2017:01:05 19:50:13+00:00 |
| ImageFileCharacteristics: | No relocs, Executable, No line numbers, No symbols, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 6 |
| CodeSize: | 61440 |
| InitializedDataSize: | 28672 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xfd88 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
Total processes
41
Monitored processes
6
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1116 | "C:\Program Files\Windows Media Player\wmpnscfg.exe" | C:\Program Files\Windows Media Player\wmpnscfg.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Media Player Network Sharing Service Configuration Application Exit code: 0 Version: 12.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1588 | C:\Windows\system32\cmd.exe /c ""C:\Users\admin\AppData\Local\Temp\uninstall.bat" " | C:\Windows\System32\cmd.exe | — | remcos.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2072 | "C:\Users\admin\AppData\Roaming\remcos\remcos.exe" | C:\Users\admin\AppData\Roaming\remcos\remcos.exe | cmd.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 3976 | "C:\Users\admin\Desktop\Backdoor.exe" | C:\Users\admin\Desktop\Backdoor.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 4004 | C:\Windows\system32\cmd.exe /c ""C:\Users\admin\AppData\Local\Temp\install.bat" " | C:\Windows\System32\cmd.exe | — | Backdoor.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 4032 | PING 127.0.0.1 -n 2 | C:\Windows\System32\PING.EXE | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: TCP/IP Ping Command Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
5 799
Read events
5 778
Write events
19
Delete events
2
Modification events
| (PID) Process: | (3976) Backdoor.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | remcos |
Value: "C:\Users\admin\AppData\Roaming\remcos\remcos.exe" | |||
| (PID) Process: | (3976) Backdoor.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (3976) Backdoor.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (3976) Backdoor.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (3976) Backdoor.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (2072) remcos.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | remcos |
Value: "C:\Users\admin\AppData\Roaming\remcos\remcos.exe" | |||
| (PID) Process: | (2072) remcos.exe | Key: | HKEY_CURRENT_USER\Software\remcos_ttusunpexyvclxg |
| Operation: | write | Name: | EXEpath |
Value: e.gÆïò…»ø.õˆL§ÓÂò늳wèžsϳhìËæóÙÞú‘o+ù | |||
| (PID) Process: | (2072) remcos.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | delete value | Name: | remcos |
Value: "C:\Users\admin\AppData\Roaming\remcos\remcos.exe" | |||
| (PID) Process: | (2072) remcos.exe | Key: | HKEY_CURRENT_USER\Software\remcos_ttusunpexyvclxg |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | (2072) remcos.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
Executable files
1
Suspicious files
0
Text files
3
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3976 | Backdoor.exe | C:\Users\admin\AppData\Local\Temp\install.bat | text | |
MD5:4BE8E47D35A08B8B6AD69312F7B4E077 | SHA256:428B8E9AF103691C24E02AA1F514D45763C29FD1F83EA77DAB7DEF653545FB60 | |||
| 3976 | Backdoor.exe | C:\Users\admin\AppData\Roaming\remcos\remcos.exe | executable | |
MD5:2BC86FE5EA8CECD9BD2F78362446E848 | SHA256:972E30E8C07472FAAB006935ACC3C6E1C09B0815BB259C023703FAABE4F04304 | |||
| 2072 | remcos.exe | C:\Users\admin\AppData\Roaming\remcos\logs.dat | text | |
MD5:F2C2F3C56C730538E44F428FC90F4BE5 | SHA256:11876AD66BAE4825B7CA91B09584EDDE38D15140413BE1CD5799145E2AB922FD | |||
| 2072 | remcos.exe | C:\Users\admin\AppData\Local\Temp\uninstall.bat | text | |
MD5:47C083A3715E9D955C667002AC2E246A | SHA256:9C6A011FA96007BB5A24F407959DB3E4DD40EF082F43A403EC212C842FE874B3 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
7
DNS requests
1
Threats
37
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 |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 224.0.0.252:5355 | — | — | — | unknown |
1088 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
2072 | remcos.exe | 3.134.125.175:11830 | 0.tcp.ngrok.io | AMAZON-02 | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
0.tcp.ngrok.io |
| shared |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1088 | svchost.exe | Misc activity | ET INFO DNS Query to a *.ngrok domain (ngrok.io) |
2072 | remcos.exe | Malware Command and Control Activity Detected | ET MALWARE Remcos RAT Checkin 23 |
— | — | A Network Trojan was detected | REMOTE [ANY.RUN] Remcos Successful Connection |
— | — | Malware Command and Control Activity Detected | ET MALWARE Remcos RAT Checkin 23 |
— | — | Malware Command and Control Activity Detected | ET MALWARE Remcos RAT Checkin 23 |
— | — | Malware Command and Control Activity Detected | ET MALWARE Remcos RAT Checkin 23 |
31 ETPRO signatures available at the full report