Analysis Overview
SHA256
736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b
Threat Level: Known bad
The file 736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe was found to be: Known bad.
Malicious Activity Summary
Guloader family
Guloader,Cloudeye
Loads dropped DLL
Legitimate hosting services abused for malware hosting/C2
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Drops file in Program Files directory
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Program crash
NSIS installer
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-07 02:37
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 02:37
Reported
2024-11-07 02:40
Platform
win7-20241010-en
Max time kernel
93s
Max time network
100s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.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\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 392 set thread context of 2736 | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\Reoil.mul | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Drops file in Windows directory
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\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.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\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe
"C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe"
C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe
"C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 1292
Network
| Country | Destination | Domain | Proto |
| 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 | 142.250.187.227:80 | c.pki.goog | tcp |
| 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 |
Files
\Users\Admin\AppData\Local\Temp\nsz3C56.tmp\System.dll
| MD5 | c9473cb90d79a374b2ba6040ca16e45c |
| SHA1 | ab95b54f12796dce57210d65f05124a6ed81234a |
| SHA256 | b80a5cba69d1853ed5979b0ca0352437bf368a5cfb86cb4528edadd410e11352 |
| SHA512 | eafe7d5894622bc21f663bca4dd594392ee0f5b29270b6b56b0187093d6a3a103545464ff6398ad32d2cf15dab79b1f133218ba9ba337ddc01330b5ada804d7b |
memory/392-20-0x0000000003060000-0x0000000003C8F000-memory.dmp
memory/392-21-0x0000000003060000-0x0000000003C8F000-memory.dmp
memory/392-23-0x00000000775C0000-0x0000000077769000-memory.dmp
memory/392-22-0x00000000775C1000-0x00000000776C2000-memory.dmp
memory/392-24-0x0000000003060000-0x0000000003C8F000-memory.dmp
memory/2736-26-0x00000000775C0000-0x0000000077769000-memory.dmp
memory/2736-25-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-48-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-50-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-52-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-51-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-54-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-53-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-56-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-55-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-58-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-57-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2736-59-0x0000000000400000-0x0000000001462000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-07 02:37
Reported
2024-11-07 02:40
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
153s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.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\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 5116 set thread context of 4144 | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\Reoil.mul | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Drops file in Windows directory
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\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.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\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe
"C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe"
C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe
"C:\Users\Admin\AppData\Local\Temp\736c7e43912f503e8c2a91a5f64c95ee3f1f817d20acbb306fba3eb9b83ba24b.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4144 -ip 4144
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 1740
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 | 142.250.187.206:443 | drive.google.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 142.250.187.227:80 | c.pki.goog | tcp |
| 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 | 206.187.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 227.187.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 225.16.217.172.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 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 169.253.116.51.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nspAB16.tmp\System.dll
| MD5 | c9473cb90d79a374b2ba6040ca16e45c |
| SHA1 | ab95b54f12796dce57210d65f05124a6ed81234a |
| SHA256 | b80a5cba69d1853ed5979b0ca0352437bf368a5cfb86cb4528edadd410e11352 |
| SHA512 | eafe7d5894622bc21f663bca4dd594392ee0f5b29270b6b56b0187093d6a3a103545464ff6398ad32d2cf15dab79b1f133218ba9ba337ddc01330b5ada804d7b |
memory/5116-18-0x0000000003230000-0x0000000003E5F000-memory.dmp
memory/5116-19-0x0000000077D11000-0x0000000077E31000-memory.dmp
memory/5116-20-0x0000000010004000-0x0000000010005000-memory.dmp
memory/5116-21-0x0000000003230000-0x0000000003E5F000-memory.dmp
memory/4144-22-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4144-23-0x0000000001660000-0x000000000228F000-memory.dmp
memory/4144-24-0x0000000077D98000-0x0000000077D99000-memory.dmp
memory/4144-25-0x0000000077DB5000-0x0000000077DB6000-memory.dmp
memory/4144-38-0x0000000001660000-0x000000000228F000-memory.dmp
memory/4144-39-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4144-40-0x0000000000401000-0x0000000000404000-memory.dmp
memory/4144-41-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4144-42-0x0000000077D11000-0x0000000077E31000-memory.dmp
memory/4144-43-0x0000000000401000-0x0000000000404000-memory.dmp
memory/4144-44-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4144-45-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4144-46-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4144-47-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4144-48-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4144-50-0x0000000001660000-0x000000000228F000-memory.dmp
memory/4144-51-0x0000000000401000-0x0000000000404000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-07 02:37
Reported
2024-11-07 02:40
Platform
win7-20240729-en
Max time kernel
118s
Max time network
123s
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 3064 -s 224
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-07 02:37
Reported
2024-11-07 02:40
Platform
win10v2004-20241007-en
Max time kernel
145s
Max time network
152s
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 3288 wrote to memory of 1564 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3288 wrote to memory of 1564 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3288 wrote to memory of 1564 | 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 408 -p 1564 -ip 1564
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1564 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.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 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 170.117.168.52.in-addr.arpa | udp |