Analysis Overview
SHA256
c1cae9e0a93114e0c9ce011279c41cf0f56d59edcaa4e2ea3c3066a2c0bb76ac
Threat Level: Known bad
The file sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe was found to be: Known bad.
Malicious Activity Summary
Detect Gurcu Stealer V3 payload
Gurcu, WhiteSnake
Gurcu family
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
Checks installed software on the system
Looks up external IP address via web service
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
outlook_win_path
outlook_office_path
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-09-13 12:02
Signatures
Detect Gurcu Stealer V3 payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Gurcu family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-09-13 12:02
Reported
2023-09-13 12:04
Platform
win7-20230831-en
Max time kernel
150s
Max time network
151s
Command Line
Signatures
Detect Gurcu Stealer V3 payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Gurcu, WhiteSnake
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
Checks installed software on the system
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe
"C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 116.202.101.219:8080 | 116.202.101.219 | tcp |
| US | 8.8.8.8:53 | api.telegram.org | udp |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp | |
| NL | 149.154.167.220:443 | api.telegram.org | tcp |
| DE | 172.104.152.202:8080 | tcp |
Files
memory/3028-0-0x00000000012A0000-0x00000000012BC000-memory.dmp
memory/3028-1-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp
memory/3028-2-0x000000001B2A0000-0x000000001B320000-memory.dmp
memory/3028-3-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp
memory/3028-4-0x000000001B2A0000-0x000000001B320000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-09-13 12:02
Reported
2023-09-13 12:04
Platform
win10v2004-20230831-en
Max time kernel
148s
Max time network
153s
Command Line
Signatures
Detect Gurcu Stealer V3 payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Gurcu, WhiteSnake
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1980726966-773384374-2129981223-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-1980726966-773384374-2129981223-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-1980726966-773384374-2129981223-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
Checks installed software on the system
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1980726966-773384374-2129981223-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1980726966-773384374-2129981223-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe
"C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 116.202.101.219:8080 | 116.202.101.219 | tcp |
| 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 | 219.101.202.116.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.167.154.149.in-addr.arpa | udp |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.3.248.8.in-addr.arpa | udp |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| US | 8.8.8.8:53 | 90.65.42.20.in-addr.arpa | udp |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp |
Files
memory/1776-0-0x0000024401CC0000-0x0000024401CDC000-memory.dmp
memory/1776-1-0x00007FFC79C00000-0x00007FFC7A6C1000-memory.dmp
memory/1776-2-0x000002441C250000-0x000002441C260000-memory.dmp
memory/1776-3-0x00007FFC79C00000-0x00007FFC7A6C1000-memory.dmp
memory/1776-4-0x000002441C250000-0x000002441C260000-memory.dmp