Analysis Overview
SHA256
457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13
Threat Level: Known bad
The file 457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Loads dropped DLL
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Drops file in Program Files directory
Drops file in Windows directory
Unsigned PE
Program crash
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-19 17:33
Signatures
Unsigned PE
| 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
2024-11-19 17:33
Reported
2024-11-19 17:35
Platform
win7-20240903-en
Max time kernel
119s
Max time network
124s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\nomarch\gratiales.ini | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Fonts\Gullis.lnk | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
| File opened for modification | C:\Windows\Fonts\Gullis.lnk | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
| File created | C:\Windows\Fonts\Iskagerne227.lnk | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.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\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe
"C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\nsoEC53.tmp\System.dll
| MD5 | 75ed96254fbf894e42058062b4b4f0d1 |
| SHA1 | 996503f1383b49021eb3427bc28d13b5bbd11977 |
| SHA256 | a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7 |
| SHA512 | 58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4 |
C:\Windows\Fonts\Gullis.lnk
| MD5 | 3273956bf1dadfbb25c69dbf1792d8a2 |
| SHA1 | 79ec6814d8714e5365b058e14060953ac9a3569a |
| SHA256 | 5051f7f492aa860535fd4500096e6af14cb55ccef82ecd7d6532b8475009463f |
| SHA512 | f7e261573ae97c4497c272e78458067dcdaff85739391efb6f279d8a0fd6d4b66511a27300e1f16c6e42ccc98138e58f3decba8dd713327f974158f4e3a24446 |
memory/2636-20-0x0000000002E60000-0x0000000005D4A000-memory.dmp
memory/2636-21-0x0000000002E60000-0x0000000005D4A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-19 17:33
Reported
2024-11-19 17:35
Platform
win10v2004-20241007-en
Max time kernel
146s
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\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2144 set thread context of 432 | N/A | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\nomarch\gratiales.ini | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Fonts\Gullis.lnk | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
| File opened for modification | C:\Windows\Fonts\Gullis.lnk | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.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\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe
"C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe"
C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe
"C:\Users\Admin\AppData\Local\Temp\457920271c702327ebd0b91221bab5c4c953f09a7b2a32166ebb266ff5d7bf13.exe"
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 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.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 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| NL | 185.222.57.90:80 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| NL | 185.222.57.90:80 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| NL | 185.222.57.90:80 | tcp | |
| NL | 185.222.57.90:80 | tcp | |
| US | 8.8.8.8:53 | 180.129.81.91.in-addr.arpa | udp |
| NL | 185.222.57.90:80 | tcp | |
| NL | 185.222.57.90:80 | tcp | |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| NL | 185.222.57.90:80 | tcp | |
| NL | 185.222.57.90:80 | tcp | |
| NL | 185.222.57.90:80 | tcp | |
| NL | 185.222.57.90:80 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\nszB680.tmp\System.dll
| MD5 | 75ed96254fbf894e42058062b4b4f0d1 |
| SHA1 | 996503f1383b49021eb3427bc28d13b5bbd11977 |
| SHA256 | a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7 |
| SHA512 | 58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4 |
C:\Windows\Fonts\Gullis.lnk
| MD5 | 6f44cef252510da2d224ceb73e73a97f |
| SHA1 | 19ced1cad25585e37185b65743a1ef9473063f3d |
| SHA256 | a36473b51c20dcd19e2b09239b2e9065bd1d861e0859f4f9a01a0fcc087793cf |
| SHA512 | 1be4bccbcf35fe8faa04b418fb778598946083dcb89fc77b657ef2581e28145faba013623b0d8227db63abad592d4fc9ed3f19aea9b49ebaf56e9a119d285e08 |
memory/2144-18-0x0000000002AC0000-0x00000000059AA000-memory.dmp
memory/2144-19-0x0000000076FF1000-0x0000000077111000-memory.dmp
memory/2144-20-0x0000000002AC0000-0x00000000059AA000-memory.dmp
memory/432-21-0x0000000000400000-0x0000000001654000-memory.dmp
memory/432-22-0x0000000001660000-0x000000000454A000-memory.dmp
memory/432-23-0x0000000001660000-0x000000000454A000-memory.dmp
memory/432-24-0x0000000000400000-0x0000000001654000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-19 17:33
Reported
2024-11-19 17:35
Platform
win7-20240903-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 2316 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-19 17:33
Reported
2024-11-19 17:35
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
146s
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 2356 wrote to memory of 4672 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2356 wrote to memory of 4672 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2356 wrote to memory of 4672 | 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 4672 -ip 4672
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4672 -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 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 | 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 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |