| File name: | btr.exe |
| Full analysis: | https://app.any.run/tasks/3548a8f2-8d9f-48d9-8d45-d3b57f5f7786 |
| Verdict: | Malicious activity |
| Threats: | Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying. |
| Analysis date: | August 22, 2024, 05:16:36 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 9D89C9D75418012F3883A4CA17FEEF3A |
| SHA1: | 89F98F3B12D04A8D0D55A86FE83314BE313A393A |
| SHA256: | 45C54CC42FE58D5C1D7ACE0CF47E44B0B354034271C358CEC3395B89F378D5EB |
| SSDEEP: | 768:6b7n+zQrY1hVeS0rRqyBLZRhtyp6J48lqepC+:IDi9exNqiNnplXpx |
MALICIOUS
Request for a sinkholed resource
- omsecor.exe (PID: 6736)
BIRELE has been detected (SURICATA)
- omsecor.exe (PID: 6736)
Connects to the CnC server
- omsecor.exe (PID: 6736)
SUSPICIOUS
Reads security settings of Internet Explorer
- omsecor.exe (PID: 6736)
Contacting a server suspected of hosting an CnC
- omsecor.exe (PID: 6736)
Executable content was dropped or overwritten
- btr.exe (PID: 6716)
Drops the executable file immediately after the start
- btr.exe (PID: 6716)
INFO
Creates files or folders in the user directory
- btr.exe (PID: 6716)
Failed to create an executable file in Windows directory
- omsecor.exe (PID: 6736)
Reads the computer name
- omsecor.exe (PID: 6736)
Checks supported languages
- btr.exe (PID: 6716)
- omsecor.exe (PID: 6736)
Checks proxy server information
- omsecor.exe (PID: 6736)
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: | 2012:11:26 06:03:41+00:00 |
| ImageFileCharacteristics: | No relocs, Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 52736 |
| InitializedDataSize: | 103424 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xb346 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
Total processes
135
Monitored processes
2
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6716 | "C:\Users\admin\Desktop\btr.exe" | C:\Users\admin\Desktop\btr.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 6736 | C:\Users\admin\AppData\Roaming\omsecor.exe | C:\Users\admin\AppData\Roaming\omsecor.exe | btr.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Modules
| |||||||||||||||
Total events
691
Read events
680
Write events
11
Delete events
0
Modification events
| (PID) Process: | (6736) omsecor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (6736) omsecor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (6736) omsecor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (6736) omsecor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (6736) omsecor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (6736) omsecor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (6736) omsecor.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6716 | btr.exe | C:\Users\admin\AppData\Roaming\omsecor.exe | executable | |
MD5:8DAA7DBF3D4D88ECE29BEA911F181434 | SHA256:89FA41B36CF9462D3E14FCE709FD94E6CCEEDE32C5BC22300EE45A6352608DCC | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
39
DNS requests
20
Threats
5
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
6736 | omsecor.exe | GET | — | 193.166.255.171:80 | http://lousta.net/757/62.html | unknown | — | — | malicious |
7112 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
6936 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
5400 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
6456 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
6736 | omsecor.exe | GET | 200 | 52.34.198.229:80 | http://ow5dirasuek.com/259/385.html | unknown | — | — | unknown |
6736 | omsecor.exe | GET | 200 | 64.225.91.73:80 | http://mkkuei4kdsz.com/146/172.html | unknown | — | — | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4876 | svchost.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | unknown |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
2120 | MoUsoCoreWorker.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | unknown |
— | — | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | unknown |
6736 | omsecor.exe | 193.166.255.171:80 | lousta.net | Tieteen tietotekniikan keskus Oy | FI | unknown |
4876 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3260 | svchost.exe | 40.113.103.199:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
5400 | svchost.exe | 40.126.32.72:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | unknown |
5400 | svchost.exe | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
2120 | MoUsoCoreWorker.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
lousta.net |
| malicious |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
arc.msn.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
6736 | omsecor.exe | Malware Command and Control Activity Detected | ET MALWARE Ransom.Win32.Birele.gsg Checkin |
6736 | omsecor.exe | Malware Command and Control Activity Detected | ET MALWARE Ransom.Win32.Birele.gsg Checkin |
6736 | omsecor.exe | Malware Command and Control Activity Detected | ET MALWARE Ransom.Win32.Birele.gsg Checkin |
6736 | omsecor.exe | A Network Trojan was detected | ET MALWARE Possible Compromised Host AnubisNetworks Sinkhole Cookie Value Snkz |
6736 | omsecor.exe | A Network Trojan was detected | ET MALWARE Possible Compromised Host AnubisNetworks Sinkhole Cookie Value btst |