Analysis Overview
SHA256
d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f
Threat Level: Shows suspicious behavior
The file d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe was found to be: Shows suspicious behavior.
Malicious Activity Summary
Executes dropped EXE
Drops startup file
Loads dropped DLL
Looks up external IP address via web service
Accesses Microsoft Outlook profiles
Suspicious use of SetThreadContext
AutoIT Executable
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-16 05:37
Signatures
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-16 05:37
Reported
2024-10-16 05:40
Platform
win7-20240903-en
Max time kernel
122s
Max time network
123s
Command Line
Signatures
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Lymnaeidae.vbs | C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe | N/A |
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2472 set thread context of 2264 | N/A | C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe
"C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe"
C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe
"C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| DE | 193.122.6.168:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 172.67.177.134:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | api.telegram.org | udp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
Files
memory/276-2-0x00000000036E0000-0x00000000038E0000-memory.dmp
\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe
| MD5 | 3395921f981e54180e5801d6389cc3ef |
| SHA1 | 21faeaef86cc8bd47904cbddedd383959292dde8 |
| SHA256 | d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f |
| SHA512 | d8f3b7afc54f68c67da87dc1100f4cfd00e219cc1ba964e5dbbd2f1b316512a327ac39e335b7b4d1623c3d50c7e5cc4120377fb2ff644e39719bad7457570266 |
C:\Users\Admin\AppData\Local\Temp\silvexes
| MD5 | c3f73714f5eafbd798e3ee600ddf6d1c |
| SHA1 | c610a85c868ae0b0916c5157d43e8f6c69045929 |
| SHA256 | c235999b39489ae2a5830c27b283683e4f1d7510b62a3e5b7b30e457be1caae9 |
| SHA512 | 860e75e98e81d008fb60233c0e3e9a86f374c53ade81f8b6f9c2258cb8918ce09f895069cc12bcf31c494cb1c9265c0f22eaca52d39afea5e84b551b64ed4a57 |
memory/2472-12-0x0000000003A40000-0x0000000003C40000-memory.dmp
memory/2264-14-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2264-16-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2264-18-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2264-19-0x000000007411E000-0x000000007411F000-memory.dmp
memory/2264-20-0x0000000074110000-0x00000000747FE000-memory.dmp
memory/2264-21-0x000000007411E000-0x000000007411F000-memory.dmp
memory/2264-22-0x0000000074110000-0x00000000747FE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-16 05:37
Reported
2024-10-16 05:40
Platform
win10v2004-20241007-en
Max time kernel
141s
Max time network
122s
Command Line
Signatures
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Lymnaeidae.vbs | C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe | N/A |
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 924 set thread context of 1660 | N/A | C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe
"C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe"
C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe
"C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Users\Admin\AppData\Local\Temp\d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| 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 | 169.8.226.132.in-addr.arpa | udp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 172.67.177.134:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | 134.177.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.telegram.org | udp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| US | 8.8.8.8:53 | 220.167.154.149.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
Files
memory/3892-2-0x0000000004050000-0x0000000004250000-memory.dmp
C:\Users\Admin\AppData\Local\contrapose\Lymnaeidae.exe
| MD5 | 3395921f981e54180e5801d6389cc3ef |
| SHA1 | 21faeaef86cc8bd47904cbddedd383959292dde8 |
| SHA256 | d356e576ddb8d4268bd6b15175273d3f445ae8a923b3b2efb3f5231515da2f5f |
| SHA512 | d8f3b7afc54f68c67da87dc1100f4cfd00e219cc1ba964e5dbbd2f1b316512a327ac39e335b7b4d1623c3d50c7e5cc4120377fb2ff644e39719bad7457570266 |
C:\Users\Admin\AppData\Local\Temp\silvexes
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
memory/924-10-0x0000000003F40000-0x0000000004340000-memory.dmp
memory/1660-12-0x0000000000400000-0x000000000041E000-memory.dmp
memory/1660-13-0x0000000074FFE000-0x0000000074FFF000-memory.dmp
memory/1660-14-0x00000000056F0000-0x0000000005C94000-memory.dmp
memory/1660-15-0x0000000005140000-0x00000000051DC000-memory.dmp
memory/1660-16-0x0000000074FF0000-0x00000000757A0000-memory.dmp
memory/1660-17-0x00000000061F0000-0x0000000006240000-memory.dmp
memory/1660-18-0x0000000006610000-0x00000000067D2000-memory.dmp
memory/1660-19-0x0000000006520000-0x00000000065B2000-memory.dmp
memory/1660-20-0x0000000006510000-0x000000000651A000-memory.dmp
memory/1660-21-0x0000000074FFE000-0x0000000074FFF000-memory.dmp
memory/1660-22-0x0000000074FF0000-0x00000000757A0000-memory.dmp