Analysis Overview
SHA256
bc31fc4bea86c69967c99b00e5e465c27c4712fcc2a7ea737a1d449185e84a28
Threat Level: Known bad
The file bc31fc4bea86c69967c99b00e5e465c27c4712fcc2a7ea737a1d449185e84a28 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
Suspicious use of WriteProcessMemory
outlook_office_path
Suspicious use of AdjustPrivilegeToken
outlook_win_path
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-05-02 11:00
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-05-02 11:00
Reported
2022-05-02 11:03
Platform
win7-20220414-en
Max time kernel
148s
Max time network
47s
Command Line
Signatures
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
Network
Files
memory/1912-54-0x0000000075CF1000-0x0000000075CF3000-memory.dmp
memory/896-55-0x0000000000000000-mapping.dmp
memory/1912-56-0x000000000029D000-0x00000000002A0000-memory.dmp
memory/960-57-0x0000000000000000-mapping.dmp
memory/1412-59-0x0000000000000000-mapping.dmp
memory/960-60-0x000000000020D000-0x0000000000210000-memory.dmp
memory/1704-61-0x0000000000000000-mapping.dmp
memory/1388-63-0x0000000000000000-mapping.dmp
memory/1704-64-0x000000000029D000-0x00000000002A0000-memory.dmp
memory/1368-65-0x0000000000000000-mapping.dmp
memory/1056-67-0x0000000000000000-mapping.dmp
memory/1368-68-0x000000000034D000-0x0000000000350000-memory.dmp
memory/832-69-0x0000000000000000-mapping.dmp
memory/1652-71-0x0000000000000000-mapping.dmp
memory/832-72-0x00000000002FD000-0x0000000000300000-memory.dmp
memory/1688-73-0x0000000000000000-mapping.dmp
memory/292-75-0x0000000000000000-mapping.dmp
memory/1688-76-0x000000000026D000-0x0000000000270000-memory.dmp
memory/808-77-0x0000000000000000-mapping.dmp
memory/392-79-0x0000000000000000-mapping.dmp
memory/808-80-0x000000000036D000-0x0000000000370000-memory.dmp
memory/1528-81-0x0000000000000000-mapping.dmp
memory/556-83-0x0000000000000000-mapping.dmp
memory/1528-84-0x00000000003AD000-0x00000000003B0000-memory.dmp
memory/1692-85-0x0000000000000000-mapping.dmp
memory/1988-87-0x0000000000000000-mapping.dmp
memory/1692-88-0x000000000045D000-0x0000000000460000-memory.dmp
memory/268-89-0x0000000000000000-mapping.dmp
memory/1428-91-0x0000000000000000-mapping.dmp
memory/268-92-0x00000000002ED000-0x00000000002F0000-memory.dmp
memory/628-93-0x0000000000000000-mapping.dmp
memory/1564-95-0x0000000000000000-mapping.dmp
memory/628-96-0x000000000018D000-0x0000000000190000-memory.dmp
memory/1488-97-0x0000000000000000-mapping.dmp
memory/584-99-0x0000000000000000-mapping.dmp
memory/1488-100-0x000000000031D000-0x0000000000320000-memory.dmp
memory/1876-101-0x0000000000000000-mapping.dmp
memory/1504-103-0x0000000000000000-mapping.dmp
memory/1876-104-0x00000000002DD000-0x00000000002E0000-memory.dmp
memory/988-105-0x0000000000000000-mapping.dmp
memory/1308-107-0x0000000000000000-mapping.dmp
memory/988-108-0x000000000016D000-0x0000000000170000-memory.dmp
memory/1888-109-0x0000000000000000-mapping.dmp
memory/896-111-0x0000000000000000-mapping.dmp
memory/1888-112-0x000000000015D000-0x0000000000160000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-05-02 11:00
Reported
2022-05-02 11:02
Platform
win10v2004-20220414-en
Max time kernel
76s
Max time network
130s
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-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\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-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\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 | checkip.dyndns.org | N/A | N/A |
| N/A | freegeoip.app | N/A | N/A |
| N/A | freegeoip.app | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 520 set thread context of 3232 | N/A | C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.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\004797508E2-20F2-4C2C-879A-1C358609BA01d.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
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\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-1-5-21-1081944012-3634099177-1681222835-1000\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\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe
"C:\Users\Admin\AppData\Local\Temp\004797508E2-20F2-4C2C-879A-1C358609BA01d.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
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 3232 -ip 3232
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3232 -s 1996
Network
| Country | Destination | Domain | Proto |
| US | 20.189.173.2:443 | tcp | |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| US | 193.122.130.0:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | freegeoip.app | udp |
| US | 188.114.97.0:443 | freegeoip.app | tcp |
| US | 8.8.8.8:53 | ipbase.com | udp |
| US | 75.2.60.5:443 | ipbase.com | tcp |
| NL | 104.110.191.133:80 | tcp | |
| NL | 104.110.191.133:80 | tcp | |
| NL | 104.110.191.133:80 | tcp |
Files
memory/3656-130-0x0000000000000000-mapping.dmp
memory/520-131-0x00000000010FD000-0x0000000001100000-memory.dmp
memory/3232-132-0x0000000000000000-mapping.dmp
memory/3232-133-0x0000000000400000-0x0000000000472000-memory.dmp
memory/3232-134-0x0000000005470000-0x000000000550C000-memory.dmp
memory/3232-135-0x0000000005B80000-0x0000000006124000-memory.dmp
memory/3232-136-0x00000000055D0000-0x0000000005636000-memory.dmp