Analysis Overview
SHA256
ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47
Threat Level: Known bad
The file ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Disables Task Manager via registry modification
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Legitimate hosting services abused for malware hosting/C2
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Suspicious use of NtSetInformationThreadHideFromDebugger
System Location Discovery: System Language Discovery
Program crash
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
outlook_win_path
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
outlook_office_path
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-11 05:49
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-11 05:49
Reported
2025-01-11 05:52
Platform
win7-20240903-en
Max time kernel
120s
Max time network
120s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Disables Task Manager via registry modification
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Reads user/profile data of web browsers
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | drive.google.com | N/A | N/A |
| N/A | drive.google.com | N/A | 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 | reallyfreegeoip.org | N/A | N/A |
| N/A | reallyfreegeoip.org | N/A | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2536 set thread context of 2116 | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.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\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe
"C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe"
C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe
"C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | drive.google.com | udp |
| GB | 142.250.179.238:443 | drive.google.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 142.250.178.3:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | o.pki.goog | udp |
| GB | 142.250.200.35:80 | o.pki.goog | tcp |
| US | 8.8.8.8:53 | drive.usercontent.google.com | udp |
| GB | 216.58.212.193:443 | drive.usercontent.google.com | 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 | reallyfreegeoip.org | udp |
| US | 104.21.80.1:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.19.117.18:80 | crl.microsoft.com | tcp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| QA | 2.23.246.101:80 | www.microsoft.com | tcp |
Files
\Users\Admin\AppData\Local\Temp\nsy8632.tmp\System.dll
| MD5 | fc90dfb694d0e17b013d6f818bce41b0 |
| SHA1 | 3243969886d640af3bfa442728b9f0dff9d5f5b0 |
| SHA256 | 7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528 |
| SHA512 | 324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6 |
memory/2536-15-0x00000000036E0000-0x00000000049B9000-memory.dmp
memory/2536-16-0x0000000076D11000-0x0000000076E12000-memory.dmp
memory/2536-17-0x0000000076D10000-0x0000000076EB9000-memory.dmp
memory/2536-18-0x00000000036E0000-0x00000000049B9000-memory.dmp
memory/2116-19-0x0000000076D10000-0x0000000076EB9000-memory.dmp
memory/2116-39-0x00000000004B0000-0x0000000001512000-memory.dmp
memory/2116-40-0x00000000004B0000-0x00000000004CE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-11 05:49
Reported
2025-01-11 05:52
Platform
win10v2004-20241007-en
Max time kernel
145s
Max time network
137s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Disables Task Manager via registry modification
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Accesses Microsoft Outlook profiles
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | drive.google.com | N/A | N/A |
| N/A | drive.google.com | N/A | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | reallyfreegeoip.org | N/A | N/A |
| N/A | checkip.dyndns.org | N/A | N/A |
| N/A | reallyfreegeoip.org | N/A | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4112 set thread context of 3156 | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.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\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe
"C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe"
C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe
"C:\Users\Admin\AppData\Local\Temp\ec0c8d7a3312e95aa25f0ce8dd738ed1660246374f6a6d1a268b97ae4d3c4d47.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 60.153.16.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | drive.google.com | udp |
| GB | 142.250.179.238:443 | drive.google.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 142.250.200.35:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | o.pki.goog | udp |
| GB | 142.250.178.3:80 | o.pki.goog | tcp |
| US | 8.8.8.8:53 | drive.usercontent.google.com | udp |
| GB | 216.58.212.193:443 | drive.usercontent.google.com | tcp |
| US | 8.8.8.8:53 | 238.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 193.212.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.200.250.142.in-addr.arpa | udp |
| 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 | reallyfreegeoip.org | udp |
| US | 104.21.96.1:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | 0.130.122.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.96.21.104.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 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 168.36.72.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nseC2B6.tmp\System.dll
| MD5 | fc90dfb694d0e17b013d6f818bce41b0 |
| SHA1 | 3243969886d640af3bfa442728b9f0dff9d5f5b0 |
| SHA256 | 7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528 |
| SHA512 | 324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6 |
memory/4112-15-0x00000000032C0000-0x0000000004599000-memory.dmp
memory/4112-16-0x0000000076FE1000-0x0000000077101000-memory.dmp
memory/4112-17-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4112-18-0x00000000032C0000-0x0000000004599000-memory.dmp
memory/3156-19-0x0000000001710000-0x00000000029E9000-memory.dmp
memory/3156-20-0x0000000077068000-0x0000000077069000-memory.dmp
memory/3156-21-0x0000000077085000-0x0000000077086000-memory.dmp
memory/3156-34-0x0000000001710000-0x00000000029E9000-memory.dmp
memory/3156-36-0x0000000076FE1000-0x0000000077101000-memory.dmp
memory/3156-35-0x00000000004B0000-0x0000000001704000-memory.dmp
memory/3156-37-0x00000000004B0000-0x00000000004CE000-memory.dmp
memory/3156-38-0x0000000035750000-0x0000000035CF4000-memory.dmp
memory/3156-39-0x0000000035D00000-0x0000000035D9C000-memory.dmp
memory/3156-40-0x0000000035E20000-0x0000000035EB2000-memory.dmp
memory/3156-41-0x0000000036230000-0x0000000036280000-memory.dmp
memory/3156-43-0x00000000362D0000-0x0000000036492000-memory.dmp
memory/3156-44-0x0000000036550000-0x000000003655A000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2025-01-11 05:49
Reported
2025-01-11 05:52
Platform
win7-20241010-en
Max time kernel
72s
Max time network
19s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 228
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2025-01-11 05:49
Reported
2025-01-11 05:52
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
151s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1716 wrote to memory of 1328 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1716 wrote to memory of 1328 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1716 wrote to memory of 1328 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1328 -ip 1328
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1328 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |