Analysis Overview
SHA256
26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5
Threat Level: Known bad
The file 26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.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
Accesses Microsoft Outlook profiles
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Suspicious use of NtCreateThreadExHideFromDebugger
Drops file in System32 directory
Unsigned PE
Program crash
Enumerates physical storage devices
System Location Discovery: System Language Discovery
outlook_win_path
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
outlook_office_path
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-11 02:37
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-11 02:37
Reported
2025-01-11 02:40
Platform
win10v2004-20241007-en
Max time kernel
146s
Max time network
144s
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\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.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 |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\hjemmecomputeren.Pot | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3780 set thread context of 4792 | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.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\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe
"C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe"
C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe
"C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 60.153.16.2.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 | drive.google.com | udp |
| GB | 172.217.169.78:443 | 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 | 142.250.178.3:80 | o.pki.goog | tcp |
| US | 8.8.8.8:53 | 78.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.178.250.142.in-addr.arpa | udp |
| 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 | 193.212.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| US | 158.101.44.242:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 104.21.32.1:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | 242.44.101.158.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.32.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.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 | 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 | 59.238.56.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.153.16.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsb95E8.tmp\System.dll
| MD5 | ee260c45e97b62a5e42f17460d406068 |
| SHA1 | df35f6300a03c4d3d3bd69752574426296b78695 |
| SHA256 | e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27 |
| SHA512 | a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3 |
memory/3780-14-0x0000000002A60000-0x0000000003C4E000-memory.dmp
memory/3780-15-0x00000000770B1000-0x00000000771D1000-memory.dmp
memory/3780-16-0x0000000010004000-0x0000000010005000-memory.dmp
memory/3780-17-0x0000000002A60000-0x0000000003C4E000-memory.dmp
memory/4792-18-0x00000000016C0000-0x00000000028AE000-memory.dmp
memory/4792-19-0x0000000077138000-0x0000000077139000-memory.dmp
memory/4792-20-0x0000000077155000-0x0000000077156000-memory.dmp
memory/4792-33-0x00000000016C0000-0x00000000028AE000-memory.dmp
memory/4792-34-0x0000000000460000-0x00000000016B4000-memory.dmp
memory/4792-35-0x0000000000460000-0x000000000047E000-memory.dmp
memory/4792-36-0x00000000355A0000-0x0000000035B44000-memory.dmp
memory/4792-37-0x00000000354D0000-0x000000003556C000-memory.dmp
memory/4792-39-0x0000000035F50000-0x0000000035FE2000-memory.dmp
memory/4792-40-0x0000000036040000-0x0000000036090000-memory.dmp
memory/4792-41-0x00000000770B1000-0x00000000771D1000-memory.dmp
memory/4792-42-0x0000000036090000-0x0000000036252000-memory.dmp
memory/4792-43-0x00000000362D0000-0x00000000362DA000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2025-01-11 02:37
Reported
2025-01-11 02:40
Platform
win7-20240903-en
Max time kernel
118s
Max time network
118s
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 2660 -s 224
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2025-01-11 02:37
Reported
2025-01-11 02:40
Platform
win10v2004-20241007-en
Max time kernel
149s
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 3092 wrote to memory of 3004 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3092 wrote to memory of 3004 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3092 wrote to memory of 3004 | 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 364 -p 3004 -ip 3004
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 142.53.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-11 02:37
Reported
2025-01-11 02:40
Platform
win7-20241010-en
Max time kernel
78s
Max time network
84s
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\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.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 |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\hjemmecomputeren.Pot | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2060 set thread context of 2840 | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.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\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe
"C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe"
C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe
"C:\Users\Admin\AppData\Local\Temp\26194afcbac0da3df930c4d161f1245da3c8dfb56cb2a142104bc4ef633bceb5.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | drive.google.com | udp |
| GB | 172.217.169.78:443 | 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 | 142.250.178.3:80 | 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 | checkip.dyndns.org | udp |
| US | 158.101.44.242:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 104.21.32.1:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| US | 23.192.26.94:80 | www.microsoft.com | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.18.190.73:80 | crl.microsoft.com | tcp |
Files
\Users\Admin\AppData\Local\Temp\nsz7022.tmp\System.dll
| MD5 | ee260c45e97b62a5e42f17460d406068 |
| SHA1 | df35f6300a03c4d3d3bd69752574426296b78695 |
| SHA256 | e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27 |
| SHA512 | a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3 |
memory/2060-16-0x0000000002960000-0x0000000003B4E000-memory.dmp
memory/2060-17-0x0000000002960000-0x0000000003B4E000-memory.dmp
memory/2060-18-0x0000000077C21000-0x0000000077D22000-memory.dmp
memory/2060-19-0x0000000077C20000-0x0000000077DC9000-memory.dmp
memory/2060-21-0x0000000002960000-0x0000000003B4E000-memory.dmp
memory/2840-20-0x0000000077C20000-0x0000000077DC9000-memory.dmp
memory/2840-28-0x0000000000460000-0x00000000014C2000-memory.dmp
memory/2840-45-0x0000000000460000-0x00000000014C2000-memory.dmp
memory/2840-46-0x0000000000460000-0x000000000047E000-memory.dmp