| File name: | Backdoor.exe |
| Full analysis: | https://app.any.run/tasks/f63587ce-84d7-45c8-8980-16b7071cfe96 |
| 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: | November 01, 2024, 11:14:17 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, 4 sections |
| MD5: | 2BC86FE5EA8CECD9BD2F78362446E848 |
| SHA1: | AA373F4456935D242EE83004FDF3A2398B129C87 |
| SHA256: | 972E30E8C07472FAAB006935ACC3C6E1C09B0815BB259C023703FAABE4F04304 |
| SSDEEP: | 3072:UGn3BLrjOSBOpP/ySDixvvvKNy/35ENLeQJ:TnJqAvKNyhENLeQJ |
MALICIOUS
REMCOS has been detected
- Backdoor.exe (PID: 1156)
- remcos.exe (PID: 5748)
Changes the autorun value in the registry
- Backdoor.exe (PID: 1156)
- remcos.exe (PID: 5748)
REMCOS has been detected (YARA)
- remcos.exe (PID: 5748)
SUSPICIOUS
Executable content was dropped or overwritten
- Backdoor.exe (PID: 1156)
Executing commands from a ".bat" file
- Backdoor.exe (PID: 1156)
Reads security settings of Internet Explorer
- Backdoor.exe (PID: 1156)
Starts CMD.EXE for commands execution
- Backdoor.exe (PID: 1156)
Runs PING.EXE to delay simulation
- cmd.exe (PID: 3276)
The executable file from the user directory is run by the CMD process
- remcos.exe (PID: 5748)
Connects to unusual port
- remcos.exe (PID: 5748)
INFO
Creates files or folders in the user directory
- Backdoor.exe (PID: 1156)
Checks supported languages
- Backdoor.exe (PID: 1156)
- remcos.exe (PID: 5748)
Process checks computer location settings
- Backdoor.exe (PID: 1156)
The process uses the downloaded file
- Backdoor.exe (PID: 1156)
Reads the computer name
- Backdoor.exe (PID: 1156)
- remcos.exe (PID: 5748)
Create files in a temporary directory
- Backdoor.exe (PID: 1156)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Remcos
(PID) Process(5748) remcos.exe
C2 (1)0.tcp.ngrok.io:11830
BotnetHost
Options
Connect_interval5
Install_flagTrue
Install_HKCU\RunTrue
Setup_path%APPDATA%
Copy_fileremcos.exe
Startup_valueremcos
Hide_fileFalse
Mutex_nameremcos_ttusunpexyvclxg
Keylog_flag1
Keylog_path%APPDATA%
Keylog_filelogs.dat
Keylog_cryptFalse
Hide_keylogFalse
Screenshot_flagFalse
Screenshot_time5
Take_ScreenshotFalse
Screenshot_path%APPDATA%
Screenshot_fileScreens
Screenshot_cryptFalse
Mouse_optionFalse
Delete_fileFalse
Audio_record_time5
Audio_path%APPDATA%
Audio_diraudio
Connect_delay0
Copy_dirremcos
Keylog_dirremcos
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
138
Monitored processes
7
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1156 | "C:\Users\admin\AppData\Local\Temp\Backdoor.exe" | C:\Users\admin\AppData\Local\Temp\Backdoor.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 3276 | C:\WINDOWS\system32\cmd.exe /c ""C:\Users\admin\AppData\Local\Temp\install.bat" " | C:\Windows\SysWOW64\cmd.exe | — | Backdoor.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 1 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3608 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | — | SppExtComObj.Exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4816 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5596 | PING 127.0.0.1 -n 2 | C:\Windows\SysWOW64\PING.EXE | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: TCP/IP Ping Command Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5748 | "C:\Users\admin\AppData\Roaming\remcos\remcos.exe" | C:\Users\admin\AppData\Roaming\remcos\remcos.exe | cmd.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Modules
Remcos(PID) Process(5748) remcos.exe C2 (1)0.tcp.ngrok.io:11830 BotnetHost Options Connect_interval5 Install_flagTrue Install_HKCU\RunTrue Setup_path%APPDATA% Copy_fileremcos.exe Startup_valueremcos Hide_fileFalse Mutex_nameremcos_ttusunpexyvclxg Keylog_flag1 Keylog_path%APPDATA% Keylog_filelogs.dat Keylog_cryptFalse Hide_keylogFalse Screenshot_flagFalse Screenshot_time5 Take_ScreenshotFalse Screenshot_path%APPDATA% Screenshot_fileScreens Screenshot_cryptFalse Mouse_optionFalse Delete_fileFalse Audio_record_time5 Audio_path%APPDATA% Audio_diraudio Connect_delay0 Copy_dirremcos Keylog_dirremcos | |||||||||||||||
| 6284 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.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
851
Read events
848
Write events
3
Delete events
0
Modification events
| (PID) Process: | (1156) 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: | (5748) 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: | (5748) remcos.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\remcos_ttusunpexyvclxg |
| Operation: | write | Name: | EXEpath |
Value: e.gÆïò…»ø.õˆL§ÓÂò늳wèžsϳhìËæóÙÞú‘o+ù | |||
Executable files
1
Suspicious files
0
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 5748 | remcos.exe | C:\Users\admin\AppData\Roaming\remcos\logs.dat | text | |
MD5:89B5667E995FBEB88EDDA0BAC2FD47C4 | SHA256:EE321AE724EA998CADB15526D3573191C892653D28A8AA7DE43413AE2DCE5E79 | |||
| 1156 | Backdoor.exe | C:\Users\admin\AppData\Roaming\remcos\remcos.exe | executable | |
MD5:2BC86FE5EA8CECD9BD2F78362446E848 | SHA256:972E30E8C07472FAAB006935ACC3C6E1C09B0815BB259C023703FAABE4F04304 | |||
| 1156 | Backdoor.exe | C:\Users\admin\AppData\Local\Temp\install.bat | text | |
MD5:4BE8E47D35A08B8B6AD69312F7B4E077 | SHA256:428B8E9AF103691C24E02AA1F514D45763C29FD1F83EA77DAB7DEF653545FB60 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
68
DNS requests
20
Threats
1
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
6944 | svchost.exe | GET | 200 | 23.52.120.96:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
6944 | svchost.exe | GET | 200 | 23.53.40.176:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
3948 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
6336 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
2776 | SIHClient.exe | GET | 200 | 23.32.185.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
2776 | SIHClient.exe | GET | 200 | 23.32.185.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
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 |
6944 | svchost.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
5488 | MoUsoCoreWorker.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
7036 | RUXIMICS.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4360 | SearchApp.exe | 2.16.110.203:443 | www.bing.com | Akamai International B.V. | DE | whitelisted |
— | — | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
5748 | remcos.exe | 18.190.63.84:11830 | 0.tcp.ngrok.io | AMAZON-02 | US | shared |
6944 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6944 | svchost.exe | 23.53.40.176:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
www.bing.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
google.com |
| whitelisted |
0.tcp.ngrok.io |
| shared |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
th.bing.com |
| whitelisted |
go.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2172 | svchost.exe | Misc activity | ET INFO DNS Query to a *.ngrok domain (ngrok.io) |