Analysis Overview
SHA256
d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7
Threat Level: Known bad
The file d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Loads dropped DLL
Drops file in Windows directory
Drops file in Program Files directory
Program crash
System Location Discovery: System Language Discovery
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-07 03:19
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-07 03:19
Reported
2024-11-07 03:22
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
149s
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 464 wrote to memory of 3916 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 464 wrote to memory of 3916 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 464 wrote to memory of 3916 | 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 404 -p 3916 -ip 3916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3916 -s 616
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 | 43.229.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-07 03:19
Reported
2024-11-07 03:22
Platform
win7-20241010-en
Max time kernel
20s
Max time network
18s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\customization.rom | C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\resources\primy.ini | C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.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\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe
"C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe"
Network
Files
C:\Windows\Resources\primy.ini
| MD5 | 76d9175a3db7407eb0bfc3c07ddcd9d2 |
| SHA1 | 72071127e9a44935cb02650ed715ccaf6a8f8418 |
| SHA256 | 1f7119996dd17af05bf05e497104715bbbc3909676afa4329fbd59502be1a1a5 |
| SHA512 | 5032dab71e70a4bd1dad2f5cf9380e0097be7993bc46886fed6e4bdd8781f2b10d31338d90d0dc5804665bda2cbfe93f1172250e1a8ab7c9118baf9f156e3c69 |
\Users\Admin\AppData\Local\Temp\nse3AEF.tmp\System.dll
| MD5 | 192639861e3dc2dc5c08bb8f8c7260d5 |
| SHA1 | 58d30e460609e22fa0098bc27d928b689ef9af78 |
| SHA256 | 23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6 |
| SHA512 | 6e573d8b2ef6ed719e271fd0b2fd9cd451f61fc9a9459330108d6d7a65a0f64016303318cad787aa1d5334ba670d8f1c7c13074e1be550b4a316963ecc465cdc |
memory/2304-23239-0x00000000028F0000-0x00000000059D2000-memory.dmp
memory/2304-23240-0x00000000028F0000-0x00000000059D2000-memory.dmp
memory/2304-23243-0x00000000028F0000-0x00000000059D2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-07 03:19
Reported
2024-11-07 03:22
Platform
win10v2004-20241007-en
Max time kernel
11s
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\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\customization.rom | C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\resources\primy.ini | C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.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\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe
"C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe"
C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.exe
"C:\Users\Admin\AppData\Local\Temp\d539aa17bfa95bc25c81308a99a1c834cb28ad23f1ce8bc3715066471bd5d0f7.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 | 138.32.126.40.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 | 154.239.44.20.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 | 98.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | kmsaksesuar.com | udp |
| US | 44.28.239.165:443 | kmsaksesuar.com | tcp |
| US | 44.28.239.165:443 | kmsaksesuar.com | tcp |
| US | 44.28.239.165:443 | kmsaksesuar.com | tcp |
| US | 44.28.239.165:443 | kmsaksesuar.com | tcp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 44.28.239.165:443 | kmsaksesuar.com | tcp |
| US | 44.28.239.165:443 | kmsaksesuar.com | tcp |
| US | 44.28.239.165:443 | kmsaksesuar.com | tcp |
| US | 44.28.239.165:443 | kmsaksesuar.com | tcp |
Files
C:\Windows\Resources\primy.ini
| MD5 | 76d9175a3db7407eb0bfc3c07ddcd9d2 |
| SHA1 | 72071127e9a44935cb02650ed715ccaf6a8f8418 |
| SHA256 | 1f7119996dd17af05bf05e497104715bbbc3909676afa4329fbd59502be1a1a5 |
| SHA512 | 5032dab71e70a4bd1dad2f5cf9380e0097be7993bc46886fed6e4bdd8781f2b10d31338d90d0dc5804665bda2cbfe93f1172250e1a8ab7c9118baf9f156e3c69 |
C:\Users\Admin\AppData\Local\Temp\nsfAD48.tmp\System.dll
| MD5 | 192639861e3dc2dc5c08bb8f8c7260d5 |
| SHA1 | 58d30e460609e22fa0098bc27d928b689ef9af78 |
| SHA256 | 23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6 |
| SHA512 | 6e573d8b2ef6ed719e271fd0b2fd9cd451f61fc9a9459330108d6d7a65a0f64016303318cad787aa1d5334ba670d8f1c7c13074e1be550b4a316963ecc465cdc |
memory/4272-23237-0x0000000002F20000-0x0000000006002000-memory.dmp
memory/4272-23238-0x0000000002F20000-0x0000000006002000-memory.dmp
memory/4272-23239-0x0000000076ED1000-0x0000000076FF1000-memory.dmp
memory/4272-23240-0x0000000073BC5000-0x0000000073BC6000-memory.dmp
memory/4272-23242-0x0000000002F20000-0x0000000006002000-memory.dmp
memory/4724-23241-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4724-23243-0x0000000001660000-0x0000000004742000-memory.dmp
memory/4724-23244-0x0000000001660000-0x0000000004742000-memory.dmp
memory/4724-23245-0x0000000000400000-0x0000000001654000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-07 03:19
Reported
2024-11-07 03:22
Platform
win7-20241010-en
Max time kernel
121s
Max time network
126s
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 2080 -s 224