Analysis Overview
SHA256
6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398
Threat Level: Known bad
The file 6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398 was found to be: Known bad.
Malicious Activity Summary
Matiex Main Payload
Matiex
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks up external IP address via web service
Accesses Microsoft Outlook profiles
Suspicious use of SetThreadContext
outlook_office_path
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_win_path
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-05-01 23:23
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-05-01 23:23
Reported
2022-05-01 23:26
Platform
win7-20220414-en
Max time kernel
42s
Max time network
121s
Command Line
Signatures
Matiex
Matiex Main Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 748 set thread context of 1636 | N/A | C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe
"C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| US | 158.101.44.242:80 | checkip.dyndns.org | tcp |
Files
memory/748-54-0x0000000000CD0000-0x0000000000D90000-memory.dmp
memory/748-55-0x0000000005000000-0x000000000507A000-memory.dmp
memory/748-56-0x00000000763E1000-0x00000000763E3000-memory.dmp
memory/748-57-0x0000000000580000-0x0000000000583000-memory.dmp
memory/1636-58-0x000000000046CE6E-mapping.dmp
memory/1636-60-0x0000000000400000-0x0000000000472000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-05-01 23:23
Reported
2022-05-01 23:26
Platform
win10v2004-20220414-en
Max time kernel
142s
Max time network
119s
Command Line
Signatures
Matiex
Matiex Main Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 908 set thread context of 3288 | N/A | C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 908 wrote to memory of 3288 | N/A | C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 908 wrote to memory of 3288 | N/A | C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 908 wrote to memory of 3288 | N/A | C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
| PID 908 wrote to memory of 3288 | N/A | C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe
"C:\Users\Admin\AppData\Local\Temp\6d6b5d82859c0acb0f0d5635f4acd01ab932b6f0dac01443abd129049096a398.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| IE | 20.190.159.71:443 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| BR | 132.226.247.73:80 | checkip.dyndns.org | tcp |
| US | 67.24.169.254:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 67.24.169.254:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| GB | 51.105.71.137:443 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 67.24.169.254:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 67.24.169.254:80 | tcp | |
| US | 67.24.169.254:80 | tcp | |
| US | 8.8.8.8:53 | 106.89.54.20.in-addr.arpa | udp |
Files
memory/908-130-0x0000000000530000-0x00000000005F0000-memory.dmp
memory/908-131-0x0000000004F40000-0x0000000004FD2000-memory.dmp
memory/3288-132-0x0000000000000000-mapping.dmp
memory/908-133-0x00000000051C0000-0x00000000051C3000-memory.dmp
memory/3288-134-0x0000000000400000-0x0000000000472000-memory.dmp
memory/3288-135-0x0000000005860000-0x0000000005E04000-memory.dmp
memory/3288-136-0x0000000005350000-0x00000000053EC000-memory.dmp
memory/3288-137-0x00000000053F0000-0x0000000005456000-memory.dmp
memory/3288-138-0x0000000006860000-0x0000000006A22000-memory.dmp
memory/3288-139-0x00000000066F0000-0x00000000066FA000-memory.dmp