Analysis Overview
SHA256
ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66
Threat Level: Known bad
The file ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Loads dropped DLL
Legitimate hosting services abused for malware hosting/C2
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Suspicious use of NtCreateThreadExHideFromDebugger
Program crash
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
NSIS installer
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-07 14:21
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
NSIS installer
| 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
2024-11-07 14:21
Reported
2024-11-07 14:23
Platform
win7-20240903-en
Max time kernel
122s
Max time network
123s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe |
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\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2696 wrote to memory of 2764 | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2696 wrote to memory of 2764 | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2696 wrote to memory of 2764 | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2696 wrote to memory of 2764 | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe
"C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2696 -s 472
Network
Files
\Users\Admin\AppData\Local\Temp\nsoEF5F.tmp\System.dll
| MD5 | dd87a973e01c5d9f8e0fcc81a0af7c7a |
| SHA1 | c9206ced48d1e5bc648b1d0f54cccc18bf643a14 |
| SHA256 | 7fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1 |
| SHA512 | 4910b39b1a99622ac8b3c42f173bbe7035ac2f8d40c946468e7db7e2868a2da81ea94da453857f06f39957dd690c7f1ba498936a7aaa0039975e472376f92e8f |
memory/2696-16-0x0000000003520000-0x0000000005C9F000-memory.dmp
memory/2696-17-0x0000000003520000-0x0000000005C9F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-07 14:21
Reported
2024-11-07 14:23
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.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 |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4188 set thread context of 3100 | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe |
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\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe
"C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe"
C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe
"C:\Users\Admin\AppData\Local\Temp\ca59e14180c4b88c328f4704724a32c82295a9324bcbb9bf146a895f2f8eaa66.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3100 -ip 3100
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3100 -s 1516
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.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 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | drive.google.com | udp |
| GB | 142.250.187.206:443 | drive.google.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 216.58.212.227:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | 227.187.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | o.pki.goog | udp |
| GB | 142.250.187.227:80 | o.pki.goog | tcp |
| US | 8.8.8.8:53 | drive.usercontent.google.com | udp |
| GB | 172.217.16.225:443 | drive.usercontent.google.com | tcp |
| US | 8.8.8.8:53 | 225.16.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 227.212.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsr8ACC.tmp\System.dll
| MD5 | dd87a973e01c5d9f8e0fcc81a0af7c7a |
| SHA1 | c9206ced48d1e5bc648b1d0f54cccc18bf643a14 |
| SHA256 | 7fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1 |
| SHA512 | 4910b39b1a99622ac8b3c42f173bbe7035ac2f8d40c946468e7db7e2868a2da81ea94da453857f06f39957dd690c7f1ba498936a7aaa0039975e472376f92e8f |
memory/4188-14-0x0000000003190000-0x000000000590F000-memory.dmp
memory/4188-15-0x0000000003190000-0x000000000590F000-memory.dmp
memory/4188-16-0x0000000076F31000-0x0000000077051000-memory.dmp
memory/4188-18-0x00000000743D5000-0x00000000743D6000-memory.dmp
memory/4188-17-0x0000000076F31000-0x0000000077051000-memory.dmp
memory/4188-19-0x0000000003190000-0x000000000590F000-memory.dmp
memory/3100-20-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3100-21-0x0000000001660000-0x0000000003DDF000-memory.dmp
memory/3100-34-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3100-35-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3100-36-0x0000000001660000-0x0000000003DDF000-memory.dmp
memory/3100-37-0x0000000000400000-0x0000000001654000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-07 14:21
Reported
2024-11-07 14:23
Platform
win7-20240708-en
Max time kernel
122s
Max time network
124s
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 2856 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-07 14:21
Reported
2024-11-07 14:23
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
135s
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 5088 wrote to memory of 2180 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 5088 wrote to memory of 2180 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 5088 wrote to memory of 2180 | 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 360 -p 2180 -ip 2180
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2180 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |