Analysis Overview
SHA256
18bfaa34bea9797ca82ffa02adc900f70ad24ad9663afacf0d963ff41d3a0c17
Threat Level: Known bad
The file PolysealsSdnBhdStatementReceipts1111.exe was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Loads dropped DLL
Blocklisted process makes network request
Adds Run key to start application
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
UPX packed file
Suspicious use of SetThreadContext
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Program crash
System Location Discovery: System Language Discovery
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 17:25
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 17:25
Reported
2024-11-11 17:27
Platform
win7-20240708-en
Max time kernel
146s
Max time network
145s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\licensed = "C:\\Users\\Admin\\AppData\\Roaming\\Afsoege\\Bedrooms.exe" | C:\Windows\SysWOW64\msiexec.exe | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2028 set thread context of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | C:\Windows\SysWOW64\msiexec.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Internationalen\warping.ini | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.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\PolysealsSdnBhdStatementReceipts1111.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe
"C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe"
C:\Windows\SysWOW64\msiexec.exe
"C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.onedrive.com | udp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
Files
\Users\Admin\AppData\Local\Temp\nsj368D.tmp\System.dll
| MD5 | cff85c549d536f651d4fb8387f1976f2 |
| SHA1 | d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e |
| SHA256 | 8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8 |
| SHA512 | 531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88 |
memory/2028-13-0x0000000003F90000-0x00000000051C0000-memory.dmp
memory/2028-15-0x0000000077B90000-0x0000000077D39000-memory.dmp
memory/2028-14-0x0000000077B91000-0x0000000077C92000-memory.dmp
memory/2888-17-0x0000000077B90000-0x0000000077D39000-memory.dmp
memory/2028-16-0x0000000003F90000-0x00000000051C0000-memory.dmp
memory/2888-19-0x0000000000400000-0x0000000000581000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab7ABD.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
C:\Users\Admin\AppData\Local\Temp\Tar7AD0.tmp
| MD5 | 4ea6026cf93ec6338144661bf1202cd1 |
| SHA1 | a1dec9044f750ad887935a01430bf49322fbdcb7 |
| SHA256 | 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8 |
| SHA512 | 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 17:25
Reported
2024-11-11 17:27
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
158s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\licensed = "C:\\Users\\Admin\\AppData\\Roaming\\Afsoege\\Bedrooms.exe" | C:\Windows\SysWOW64\msiexec.exe | N/A |
Blocklisted process makes network request
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4524 set thread context of 2096 | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | C:\Windows\SysWOW64\msiexec.exe |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Internationalen\warping.ini | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.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\PolysealsSdnBhdStatementReceipts1111.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4524 wrote to memory of 2096 | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | C:\Windows\SysWOW64\msiexec.exe |
| PID 4524 wrote to memory of 2096 | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | C:\Windows\SysWOW64\msiexec.exe |
| PID 4524 wrote to memory of 2096 | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | C:\Windows\SysWOW64\msiexec.exe |
| PID 4524 wrote to memory of 2096 | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | C:\Windows\SysWOW64\msiexec.exe |
| PID 4524 wrote to memory of 2096 | N/A | C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe | C:\Windows\SysWOW64\msiexec.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe
"C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.exe"
C:\Windows\SysWOW64\msiexec.exe
"C:\Users\Admin\AppData\Local\Temp\PolysealsSdnBhdStatementReceipts1111.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 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.onedrive.com | udp |
| US | 13.107.42.12:443 | api.onedrive.com | tcp |
| US | 8.8.8.8:53 | odln1q.am.files.1drv.com | udp |
| US | 13.107.42.12:443 | odln1q.am.files.1drv.com | tcp |
| US | 8.8.8.8:53 | olufem.ddns.net | udp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| US | 8.8.8.8:53 | 12.42.107.13.in-addr.arpa | udp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| US | 8.8.8.8:53 | olufem.ddns.net | udp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| US | 8.8.8.8:53 | olufem.ddns.net | udp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
| AU | 103.47.146.161:3210 | olufem.ddns.net | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\nsh97DD.tmp\System.dll
| MD5 | cff85c549d536f651d4fb8387f1976f2 |
| SHA1 | d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e |
| SHA256 | 8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8 |
| SHA512 | 531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88 |
memory/4524-12-0x0000000005300000-0x0000000006530000-memory.dmp
memory/4524-13-0x00000000775A1000-0x00000000776C1000-memory.dmp
memory/4524-14-0x00000000741F5000-0x00000000741F6000-memory.dmp
memory/4524-15-0x0000000005300000-0x0000000006530000-memory.dmp
memory/2096-16-0x0000000000EB0000-0x00000000020E0000-memory.dmp
memory/2096-17-0x0000000077628000-0x0000000077629000-memory.dmp
memory/2096-18-0x00000000775A1000-0x00000000776C1000-memory.dmp
memory/2096-20-0x0000000000EB0000-0x00000000020E0000-memory.dmp
memory/2096-24-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2096-25-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2096-28-0x00000000775A1000-0x00000000776C1000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-11 17:25
Reported
2024-11-11 17:27
Platform
win7-20240729-en
Max time kernel
117s
Max time network
120s
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 1440 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-11 17:25
Reported
2024-11-11 17:27
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
137s
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 4040 wrote to memory of 1212 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4040 wrote to memory of 1212 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4040 wrote to memory of 1212 | 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 1212 -ip 1212
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1212 -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 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |