Analysis Overview
SHA256
099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f
Threat Level: Known bad
The file 099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe was found to be: Known bad.
Malicious Activity Summary
Guloader family
Guloader,Cloudeye
Loads dropped DLL
Suspicious use of SetThreadContext
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of NtCreateThreadExHideFromDebugger
Drops file in Program Files directory
Drops file in Windows directory
Program crash
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-19 02:08
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-19 02:08
Reported
2024-11-19 02:11
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
145s
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 4784 wrote to memory of 804 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4784 wrote to memory of 804 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4784 wrote to memory of 804 | 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 464 -p 804 -ip 804
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 804 -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 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-19 02:08
Reported
2024-11-19 02:11
Platform
win7-20241023-en
Max time kernel
11s
Max time network
16s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.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\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Fonts\Gullis.lnk | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
| File created | C:\Windows\Fonts\Gullis.lnk | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.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\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe
"C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\nstAC76.tmp\System.dll
| MD5 | 75ed96254fbf894e42058062b4b4f0d1 |
| SHA1 | 996503f1383b49021eb3427bc28d13b5bbd11977 |
| SHA256 | a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7 |
| SHA512 | 58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4 |
C:\Windows\Fonts\Gullis.lnk
| MD5 | 0a0c92e81dd488972878fbbff8a80344 |
| SHA1 | 1005aa031f106262fe0fa9dcef9e07dbf619764b |
| SHA256 | 72eb39d12bb3fe887b58688797a996630ca76cf7d7dc98f94f5c7d99274178eb |
| SHA512 | f111fa6d7a6103b281e79fc3b7340cf1bf50b3471732a209295c884a6c7d6c9f6feafee1ee963ec9719a3b7700b4ec5d3a20511e02ab3b3bd2a0c8514db4074e |
memory/2084-20-0x0000000002EB0000-0x0000000005D9A000-memory.dmp
memory/2084-25-0x0000000002EB0000-0x0000000005D9A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-19 02:08
Reported
2024-11-19 02:11
Platform
win10v2004-20241007-en
Max time kernel
140s
Max time network
140s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2876 set thread context of 1480 | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.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\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.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\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
| File opened for modification | C:\Windows\Fonts\Gullis.lnk | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.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\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe
"C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe"
C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe
"C:\Users\Admin\AppData\Local\Temp\099369eb025c3e23b6669c872ac2572e7bc4ba9200eb4d6318284983ddb78e3f.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| NL | 185.222.57.90:80 | 185.222.57.90 | tcp |
| US | 8.8.8.8:53 | 90.57.222.185.in-addr.arpa | udp |
| 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 |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nslBBEE.tmp\System.dll
| MD5 | 75ed96254fbf894e42058062b4b4f0d1 |
| SHA1 | 996503f1383b49021eb3427bc28d13b5bbd11977 |
| SHA256 | a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7 |
| SHA512 | 58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4 |
C:\Windows\Fonts\Gullis.lnk
| MD5 | 38d9f14e829ad52850675937f50106dd |
| SHA1 | a1b5743b2934c9595789120616110255d92800ce |
| SHA256 | fd18cdd6b705886f67c07f34fc631c6bbc60a33b4b1666009f2a2ee3df6e8c7a |
| SHA512 | 63e8afe524b13853f3f1f288d58256d0bccca65eab3646c3bace4ca2f8b8ed3fbe7b6f123ce57e5a8bc0875990f6e017b192f21c47f4bd6896f0f0289bd126c6 |
memory/2876-18-0x0000000002AC0000-0x00000000059AA000-memory.dmp
memory/2876-19-0x0000000077991000-0x0000000077AB1000-memory.dmp
memory/2876-20-0x0000000002AC0000-0x00000000059AA000-memory.dmp
memory/1480-21-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1480-22-0x0000000001660000-0x000000000454A000-memory.dmp
memory/1480-23-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1480-24-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1480-25-0x0000000001660000-0x000000000454A000-memory.dmp
memory/1480-26-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1480-27-0x0000000000400000-0x0000000001654000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-19 02:08
Reported
2024-11-19 02:11
Platform
win7-20240903-en
Max time kernel
121s
Max time network
122s
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 352 -s 220