Analysis Overview
SHA256
def1f0f4fa374f342d42d9d71b99212981cbbc5462568ba89ee9c3d13417b825
Threat Level: Known bad
The file def1f0f4fa374f342d42d9d71b99212981cbbc5462568ba89ee9c3d13417b825 was found to be: Known bad.
Malicious Activity Summary
Matiex
Matiex Main Payload
Looks up external IP address via web service
Accesses Microsoft Outlook profiles
Suspicious use of SetThreadContext
Program crash
outlook_win_path
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
outlook_office_path
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-05-08 19:29
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-05-08 19:29
Reported
2022-05-08 23:33
Platform
win7-20220414-en
Max time kernel
144s
Max time network
44s
Command Line
Signatures
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
Network
Files
memory/1108-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
memory/1108-55-0x00000000003B0000-0x00000000003DA000-memory.dmp
memory/908-56-0x0000000000000000-mapping.dmp
memory/908-58-0x00000000003B0000-0x00000000003DA000-memory.dmp
memory/1760-59-0x0000000000000000-mapping.dmp
memory/1760-61-0x00000000003B0000-0x00000000003DA000-memory.dmp
memory/1176-62-0x0000000000000000-mapping.dmp
memory/1176-64-0x00000000003B0000-0x00000000003DA000-memory.dmp
memory/2012-65-0x0000000000000000-mapping.dmp
memory/2012-67-0x00000000003B0000-0x00000000003DA000-memory.dmp
memory/1812-68-0x0000000000000000-mapping.dmp
memory/1812-70-0x00000000003B0000-0x00000000003DA000-memory.dmp
memory/580-71-0x0000000000000000-mapping.dmp
memory/580-73-0x00000000003B0000-0x00000000003DA000-memory.dmp
memory/1156-74-0x0000000000000000-mapping.dmp
memory/1156-76-0x00000000003B0000-0x00000000003DA000-memory.dmp
memory/2036-77-0x0000000000000000-mapping.dmp
memory/2036-79-0x00000000003B0000-0x00000000003DA000-memory.dmp
memory/1536-80-0x0000000000000000-mapping.dmp
memory/1536-82-0x00000000003B0000-0x00000000003DA000-memory.dmp
memory/1152-83-0x0000000000000000-mapping.dmp
memory/1152-85-0x00000000003B0000-0x00000000003DA000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-05-08 19:29
Reported
2022-05-08 23:33
Platform
win10v2004-20220414-en
Max time kernel
147s
Max time network
159s
Command Line
Signatures
Matiex
Matiex Main Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | freegeoip.app | N/A | N/A |
| N/A | checkip.dyndns.org | N/A | N/A |
| N/A | freegeoip.app | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4420 set thread context of 2460 | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4420 wrote to memory of 2460 | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
| PID 4420 wrote to memory of 2460 | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
| PID 4420 wrote to memory of 2460 | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
| PID 4420 wrote to memory of 2460 | N/A | C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe |
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe
"C:\Users\Admin\AppData\Local\Temp\mo908000800j865.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2460 -ip 2460
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2460 -s 1992
Network
| Country | Destination | Domain | Proto |
| US | 142.4.113.7:80 | tcp | |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| JP | 132.226.8.169:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | freegeoip.app | udp |
| US | 188.114.96.3:443 | freegeoip.app | tcp |
| US | 8.8.8.8:53 | ipbase.com | udp |
| US | 75.2.60.5:443 | ipbase.com | tcp |
| NL | 104.97.14.81:80 | tcp | |
| IE | 20.54.110.249:443 | tcp | |
| NL | 178.79.208.1:80 | tcp |
Files
memory/4420-130-0x0000000000CA0000-0x0000000000CCA000-memory.dmp
memory/2460-131-0x0000000000000000-mapping.dmp
memory/2460-132-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2460-133-0x00000000055C0000-0x000000000565C000-memory.dmp
memory/2460-134-0x0000000005C10000-0x00000000061B4000-memory.dmp
memory/2460-135-0x0000000005700000-0x0000000005766000-memory.dmp