Analysis Overview
SHA256
10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892
Threat Level: Known bad
The file 10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892.dll was found to be: Known bad.
Malicious Activity Summary
Grandoreiro
Detects Grandoreiro payload
Grandoreiro family
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Program crash
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-09 02:09
Signatures
Detects Grandoreiro payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Grandoreiro family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-09 02:08
Reported
2024-11-09 02:11
Platform
win7-20240729-en
Max time kernel
118s
Max time network
121s
Command Line
Signatures
Detects Grandoreiro payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Grandoreiro
Grandoreiro family
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 behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1100 wrote to memory of 2084 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1100 wrote to memory of 2084 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1100 wrote to memory of 2084 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1100 wrote to memory of 2084 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1100 wrote to memory of 2084 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1100 wrote to memory of 2084 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1100 wrote to memory of 2084 | 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\10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892.dll,#1
Network
Files
memory/2084-0-0x0000000002210000-0x00000000040CD000-memory.dmp
memory/2084-1-0x0000000000180000-0x0000000000181000-memory.dmp
memory/2084-30-0x00000000001F0000-0x00000000001F1000-memory.dmp
memory/2084-28-0x00000000001F0000-0x00000000001F1000-memory.dmp
memory/2084-25-0x00000000001E0000-0x00000000001E1000-memory.dmp
memory/2084-23-0x00000000001E0000-0x00000000001E1000-memory.dmp
memory/2084-20-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/2084-18-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/2084-15-0x00000000001B0000-0x00000000001B1000-memory.dmp
memory/2084-13-0x00000000001B0000-0x00000000001B1000-memory.dmp
memory/2084-10-0x00000000001A0000-0x00000000001A1000-memory.dmp
memory/2084-8-0x00000000001A0000-0x00000000001A1000-memory.dmp
memory/2084-6-0x00000000001A0000-0x00000000001A1000-memory.dmp
memory/2084-5-0x0000000000180000-0x0000000000181000-memory.dmp
memory/2084-3-0x0000000000180000-0x0000000000181000-memory.dmp
memory/2084-31-0x0000000002210000-0x00000000040CD000-memory.dmp
memory/2084-32-0x0000000000720000-0x0000000000721000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-09 02:08
Reported
2024-11-09 02:11
Platform
win10v2004-20241007-en
Max time kernel
92s
Max time network
137s
Command Line
Signatures
Detects Grandoreiro payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Grandoreiro
Grandoreiro family
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
| 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 behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4836 wrote to memory of 1888 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4836 wrote to memory of 1888 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4836 wrote to memory of 1888 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1888 wrote to memory of 1084 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\splwow64.exe |
| PID 1888 wrote to memory of 1084 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\splwow64.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\10fc720a537810eb0491d795e54f8c97d4b4fb2d6ac863de2e628fdf2ffae892.dll,#1
C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1888 -ip 1888
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 968
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1888 -ip 1888
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 968
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
Files
memory/1888-0-0x00000000027E0000-0x000000000469D000-memory.dmp
memory/1888-9-0x0000000003879000-0x0000000004429000-memory.dmp
memory/1888-1-0x00000000027E0000-0x000000000469D000-memory.dmp
memory/1888-7-0x0000000004870000-0x0000000004871000-memory.dmp
memory/1888-8-0x00000000027E0000-0x000000000469D000-memory.dmp
memory/1888-6-0x0000000004850000-0x0000000004851000-memory.dmp
memory/1888-5-0x0000000004840000-0x0000000004841000-memory.dmp
memory/1888-4-0x00000000011B0000-0x00000000011B1000-memory.dmp
memory/1888-3-0x0000000000F10000-0x0000000000F11000-memory.dmp
memory/1888-2-0x0000000000F00000-0x0000000000F01000-memory.dmp
memory/1888-10-0x00000000027E0000-0x000000000469D000-memory.dmp
memory/1888-11-0x00000000027E0000-0x000000000469D000-memory.dmp
memory/1888-12-0x00000000027E0000-0x000000000469D000-memory.dmp