Analysis Overview
SHA256
fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d
Threat Level: Known bad
The file fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe was found to be: Known bad.
Malicious Activity Summary
Guloader family
Guloader,Cloudeye
Loads dropped DLL
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Program crash
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-05 15:28
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-05 15:28
Reported
2024-11-05 15:30
Platform
win7-20240903-en
Max time kernel
13s
Max time network
121s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Fonts\anderssons\svrdliljernes.elu | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
| File opened for modification | C:\Windows\resources\0409\Landgafol76\bojanerne.ini | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.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\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe
"C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\nsoA1AE.tmp\System.dll
| MD5 | 192639861e3dc2dc5c08bb8f8c7260d5 |
| SHA1 | 58d30e460609e22fa0098bc27d928b689ef9af78 |
| SHA256 | 23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6 |
| SHA512 | 6e573d8b2ef6ed719e271fd0b2fd9cd451f61fc9a9459330108d6d7a65a0f64016303318cad787aa1d5334ba670d8f1c7c13074e1be550b4a316963ecc465cdc |
memory/2468-16-0x00000000035D0000-0x0000000005EEF000-memory.dmp
memory/2468-22-0x00000000035D0000-0x0000000005EEF000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-05 15:28
Reported
2024-11-05 15:30
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
146s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3876 set thread context of 2884 | N/A | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Fonts\anderssons\svrdliljernes.elu | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
| File opened for modification | C:\Windows\resources\0409\Landgafol76\bojanerne.ini | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.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\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe
"C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe"
C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe
"C:\Users\Admin\AppData\Local\Temp\fc73b5466e3c2c0d5d9dc70a8b210eb617ac2fdf74a8caee778d57fdb197690d.exe"
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 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | kambud.biz | udp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| US | 8.8.8.8:53 | 223.43.17.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 233.38.18.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.149.64.172.in-addr.arpa | udp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| PL | 185.17.43.223:443 | kambud.biz | tcp |
| PL | 185.17.43.223:443 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\nsh7DDD.tmp\System.dll
| MD5 | 192639861e3dc2dc5c08bb8f8c7260d5 |
| SHA1 | 58d30e460609e22fa0098bc27d928b689ef9af78 |
| SHA256 | 23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6 |
| SHA512 | 6e573d8b2ef6ed719e271fd0b2fd9cd451f61fc9a9459330108d6d7a65a0f64016303318cad787aa1d5334ba670d8f1c7c13074e1be550b4a316963ecc465cdc |
memory/3876-14-0x00000000033B0000-0x0000000005CCF000-memory.dmp
memory/3876-15-0x0000000077671000-0x0000000077791000-memory.dmp
memory/3876-16-0x0000000074365000-0x0000000074366000-memory.dmp
memory/3876-18-0x00000000033B0000-0x0000000005CCF000-memory.dmp
memory/2884-17-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2884-19-0x0000000001660000-0x0000000003F7F000-memory.dmp
memory/2884-26-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2884-27-0x0000000001660000-0x0000000003F7F000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-05 15:28
Reported
2024-11-05 15:30
Platform
win7-20240903-en
Max time kernel
118s
Max time network
119s
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 1900 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-05 15:28
Reported
2024-11-05 15:30
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
157s
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 3676 wrote to memory of 1840 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3676 wrote to memory of 1840 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3676 wrote to memory of 1840 | 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 424 -p 1840 -ip 1840
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1840 -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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.30.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.30.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 107.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 89.65.42.20.in-addr.arpa | udp |