Analysis Overview
SHA256
e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7
Threat Level: Known bad
The file e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Disables Task Manager via registry modification
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Loads dropped DLL
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 NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Enumerates physical storage devices
Program crash
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
outlook_office_path
Suspicious behavior: EnumeratesProcesses
outlook_win_path
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-11 05:45
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 05:45
Reported
2025-01-11 05:47
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
146s
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\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.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-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.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 | 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\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4988 set thread context of 2488 | N/A | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.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\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
Suspicious use of WriteProcessMemory
outlook_office_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
outlook_win_path
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe
"C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe"
C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe
"C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 |
| US | 8.8.8.8:53 | 238.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.200.250.142.in-addr.arpa | 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 | 193.212.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| BR | 132.226.247.73:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | reallyfreegeoip.org | udp |
| US | 104.21.16.1:443 | reallyfreegeoip.org | tcp |
| US | 8.8.8.8:53 | 73.247.226.132.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.16.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.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 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsy8FCE.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/4988-13-0x00000000032A0000-0x00000000055FC000-memory.dmp
memory/4988-14-0x0000000077301000-0x0000000077421000-memory.dmp
memory/4988-15-0x0000000073FF5000-0x0000000073FF6000-memory.dmp
memory/4988-16-0x00000000032A0000-0x00000000055FC000-memory.dmp
memory/2488-17-0x00000000016E0000-0x0000000003A3C000-memory.dmp
memory/2488-30-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2488-31-0x0000000000480000-0x000000000049E000-memory.dmp
memory/2488-32-0x00000000367B0000-0x0000000036D54000-memory.dmp
memory/2488-33-0x0000000036D60000-0x0000000036DFC000-memory.dmp
memory/2488-35-0x00000000016E0000-0x0000000003A3C000-memory.dmp
memory/2488-36-0x00000000371D0000-0x0000000037262000-memory.dmp
memory/2488-37-0x0000000037280000-0x00000000372D0000-memory.dmp
memory/2488-38-0x0000000037320000-0x00000000374E2000-memory.dmp
memory/2488-39-0x00000000375A0000-0x00000000375AA000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2025-01-11 05:45
Reported
2025-01-11 05:47
Platform
win7-20240903-en
Max time kernel
117s
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 2684 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2025-01-11 05:45
Reported
2025-01-11 05:47
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 4120 wrote to memory of 4836 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4120 wrote to memory of 4836 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4120 wrote to memory of 4836 | 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 4836 -ip 4836
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4836 -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 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.173.189.20.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-11 05:45
Reported
2025-01-11 05:47
Platform
win7-20240903-en
Max time kernel
9s
Max time network
16s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
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\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe
"C:\Users\Admin\AppData\Local\Temp\e8e552351ba3c8a3f713a970b114fb7b80bd6474f62a88b977fe3bc35b57e9a7.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\nsoFAF4.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/2660-15-0x0000000003740000-0x0000000005A9C000-memory.dmp
memory/2660-20-0x0000000003740000-0x0000000005A9C000-memory.dmp