Analysis Overview
SHA256
0aa73f2d4d2fc700b04a037ffc49f79b187c679b9a7773508c718b81af1b7af3
Threat Level: Known bad
The file Unconfirmed 517520.crdownload was found to be: Known bad.
Malicious Activity Summary
AmmyyAdmin payload
Ammyyadmin family
FlawedAmmyy RAT
Writes to the Master Boot Record (MBR)
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-09-20 06:41
Signatures
AmmyyAdmin payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Ammyyadmin family
Analysis: behavioral1
Detonation Overview
Submitted
2023-09-20 06:41
Reported
2023-09-20 06:44
Platform
win7-20230831-en
Max time kernel
120s
Max time network
123s
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\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe
"C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe"
C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe
"C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe" -service -lunch
C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe
"C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe"
Network
Files
C:\ProgramData\AMMYY\settings3.bin
| MD5 | 9cf7dbafc73193c3813920793b9ad924 |
| SHA1 | 6f5b6f291eecac2c66a8635f0074a879b71d54f6 |
| SHA256 | a08d9c83e04425e1246dfbf0d5f94b8061ee1963e4ddb2dcd3166de2981e602d |
| SHA512 | 04a874a6ac352e6ea79142f3be28af1f9434788b7955749414d4a5119721e798215af196b2b2b084b84f99999725d9e3391a9873ed3982be54b3af6fe360a5ef |
Analysis: behavioral2
Detonation Overview
Submitted
2023-09-20 06:41
Reported
2023-09-20 06:44
Platform
win10v2004-20230915-en
Max time kernel
141s
Max time network
150s
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\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe
"C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe"
C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe
"C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe" -service -lunch
C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe
"C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\Downloads\Unconfirmed 517520.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.1.85.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 169.117.168.52.in-addr.arpa | udp |
Files
C:\ProgramData\AMMYY\settings3.bin
| MD5 | 4bf0ac95d3b461db4dfb66014c434321 |
| SHA1 | 3265d5978fd4592da2086e2e0415b2f4c8f2a696 |
| SHA256 | 65338dd1119d511b073f9602a3634e0427f2f7168e5ceb2e252de2a3ae3bb033 |
| SHA512 | 6dbf4649bbf3a652e74bb380e95266b0a4e6692e04a39c74dafab02534a3701a46efa5be12bb4880707f309f2e4ca1f03778a1318349d1c9a2cee87c6b2cabd0 |