Analysis Overview
SHA256
ee573647477339784dcef81024de1be1762833a20e5cc2b89a93e47d05b86b6a
Threat Level: Known bad
The file rh111.exe was found to be: Known bad.
Malicious Activity Summary
Ammyyadmin family
FlawedAmmyy RAT
AmmyyAdmin payload
Writes to the Master Boot Record (MBR)
System Location Discovery: System Language Discovery
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-06 08:19
Signatures
AmmyyAdmin payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Ammyyadmin family
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-06 08:19
Reported
2024-08-06 08:22
Platform
win7-20240729-en
Max time kernel
100s
Max time network
17s
Command Line
Signatures
FlawedAmmyy RAT
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\rh111.exe | N/A |
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\rh111.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\rh111.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\rh111.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rh111.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1600 wrote to memory of 2740 | N/A | C:\Users\Admin\AppData\Local\Temp\rh111.exe | C:\Users\Admin\AppData\Local\Temp\rh111.exe |
| PID 1600 wrote to memory of 2740 | N/A | C:\Users\Admin\AppData\Local\Temp\rh111.exe | C:\Users\Admin\AppData\Local\Temp\rh111.exe |
| PID 1600 wrote to memory of 2740 | N/A | C:\Users\Admin\AppData\Local\Temp\rh111.exe | C:\Users\Admin\AppData\Local\Temp\rh111.exe |
| PID 1600 wrote to memory of 2740 | N/A | C:\Users\Admin\AppData\Local\Temp\rh111.exe | C:\Users\Admin\AppData\Local\Temp\rh111.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\rh111.exe
"C:\Users\Admin\AppData\Local\Temp\rh111.exe"
C:\Users\Admin\AppData\Local\Temp\rh111.exe
"C:\Users\Admin\AppData\Local\Temp\rh111.exe" -service -lunch
C:\Users\Admin\AppData\Local\Temp\rh111.exe
"C:\Users\Admin\AppData\Local\Temp\rh111.exe"
Network
Files
C:\ProgramData\AMMYY\settings3.bin
| MD5 | 7e8cc2f847e1678184e4964053f4aae6 |
| SHA1 | 8f69235efee35098fc6a3f79c2e9a6b643969bcd |
| SHA256 | 5f0273a768c00ede085870791e3f8a5d9167842a214a2995e01aa2b03501e98c |
| SHA512 | 1aba181d0361d67155fec7bacda1322d9c57be393e92edf9987476e800611ad6f9f2076839caf218f400eb1690efe3bfdbf781536821affb6ffba78568b3f930 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-06 08:19
Reported
2024-08-06 08:22
Platform
win10v2004-20240802-en
Max time kernel
93s
Max time network
99s
Command Line
Signatures
FlawedAmmyy RAT
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\rh111.exe | N/A |
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\rh111.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\rh111.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\rh111.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3296 wrote to memory of 3452 | N/A | C:\Users\Admin\AppData\Local\Temp\rh111.exe | C:\Users\Admin\AppData\Local\Temp\rh111.exe |
| PID 3296 wrote to memory of 3452 | N/A | C:\Users\Admin\AppData\Local\Temp\rh111.exe | C:\Users\Admin\AppData\Local\Temp\rh111.exe |
| PID 3296 wrote to memory of 3452 | N/A | C:\Users\Admin\AppData\Local\Temp\rh111.exe | C:\Users\Admin\AppData\Local\Temp\rh111.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\rh111.exe
"C:\Users\Admin\AppData\Local\Temp\rh111.exe"
C:\Users\Admin\AppData\Local\Temp\rh111.exe
"C:\Users\Admin\AppData\Local\Temp\rh111.exe" -service -lunch
C:\Users\Admin\AppData\Local\Temp\rh111.exe
"C:\Users\Admin\AppData\Local\Temp\rh111.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.58.20.217.in-addr.arpa | udp |
Files
C:\ProgramData\AMMYY\settings3.bin
| MD5 | 39a17a6add7450d267d0c7feac9c0292 |
| SHA1 | ad21a5fdc16b337e6a05233b279f18763bfaf55d |
| SHA256 | a383aba2971feef661f5c48f532661b8af4de4ed01a9c9d56ad33665894fec03 |
| SHA512 | 0283d70d28cf24bef961b18d848da59658359e19ced2d50dd482a2bdca28e72cfa7cb559535f00d5b4a4f31ae33bc9eca34b3df98979d34a812455c3e79ff368 |