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
outlook_office_path
outlook_win_path
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-10-14 04:15
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
2023-10-14 04:15
Reported
2023-10-14 19:59
Platform
win7-20230831-en
Max time kernel
152s
Max time network
158s
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-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\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-1-5-21-86725733-3001458681-3405935542-1000\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-1-5-21-86725733-3001458681-3405935542-1000\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-1-5-21-86725733-3001458681-3405935542-1000\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 | |
| 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/2880-0-0x0000000000E80000-0x0000000000E9C000-memory.dmp
memory/2880-1-0x000007FEF5050000-0x000007FEF5A3C000-memory.dmp
memory/2880-2-0x000000001B150000-0x000000001B1D0000-memory.dmp
memory/2880-3-0x000007FEF5050000-0x000007FEF5A3C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-10-14 04:15
Reported
2023-10-14 19:59
Platform
win10v2004-20230915-en
Max time kernel
155s
Max time network
165s
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-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\sdd4f38eb14d22bb3b0d3b9178295b1142f83.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\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-1-5-21-1574508946-349927670-1185736483-1000\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-1-5-21-1574508946-349927670-1185736483-1000\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-1-5-21-1574508946-349927670-1185736483-1000\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 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.3.197.209.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 108.211.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.81.57.23.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 | 1.112.95.208.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 54.120.234.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.36.159.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 120.208.253.8.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 | 126.21.238.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.167.154.149.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.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 | |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| DE | 172.104.152.202:8080 | tcp | |
| US | 8.8.8.8:53 | 55.36.223.20.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 | |
| 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 | 57.169.31.20.in-addr.arpa | udp |
| DE | 172.104.152.202:8080 | tcp | |
| US | 8.8.8.8:53 | 84.65.42.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.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 | |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| DE | 172.104.152.202:8080 | tcp | |
| DE | 172.104.152.202:8080 | tcp |
Files
memory/4936-0-0x000001EC7FEE0000-0x000001EC7FEFC000-memory.dmp
memory/4936-1-0x00007FFDEEFE0000-0x00007FFDEFAA1000-memory.dmp
memory/4936-2-0x000001EC1A7C0000-0x000001EC1A7D0000-memory.dmp
memory/4936-3-0x00007FFDEEFE0000-0x00007FFDEFAA1000-memory.dmp
memory/4936-4-0x000001EC1A7C0000-0x000001EC1A7D0000-memory.dmp