Analysis Overview
SHA256
e682ea6f18a526c3f0d8e7b6f3673b05e8e211a29fe3274423756d4731289224
Threat Level: Known bad
The file 08917699.exe was found to be: Known bad.
Malicious Activity Summary
FlawedAmmyy RAT
AmmyyAdmin payload
Ammyyadmin family
Checks computer location settings
Unsigned PE
Modifies data under HKEY_USERS
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-06-04 11:31
Signatures
AmmyyAdmin payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Ammyyadmin family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-06-04 11:31
Reported
2023-06-04 11:34
Platform
win7-20230220-en
Max time kernel
150s
Max time network
135s
Command Line
Signatures
FlawedAmmyy RAT
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = a3c038e0092084b15c07cda459191723345b3720551bfff1ad3e009fb4e9255ccce4803e861938622df4e8c1198ff11eed4e2c716f7ed4982f9a5a478009a9e88190c46f02 | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1324 wrote to memory of 1316 | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | C:\Users\Admin\AppData\Local\Temp\08917699.exe |
| PID 1324 wrote to memory of 1316 | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | C:\Users\Admin\AppData\Local\Temp\08917699.exe |
| PID 1324 wrote to memory of 1316 | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | C:\Users\Admin\AppData\Local\Temp\08917699.exe |
| PID 1324 wrote to memory of 1316 | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | C:\Users\Admin\AppData\Local\Temp\08917699.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\08917699.exe
"C:\Users\Admin\AppData\Local\Temp\08917699.exe"
C:\Users\Admin\AppData\Local\Temp\08917699.exe
"C:\Users\Admin\AppData\Local\Temp\08917699.exe" -service -lunch
C:\Users\Admin\AppData\Local\Temp\08917699.exe
"C:\Users\Admin\AppData\Local\Temp\08917699.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | acsm.ru | udp |
| RU | 77.106.252.188:80 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\settings3.bin
| MD5 | 8411a75a1e371db9594e9943e3c6c850 |
| SHA1 | 575abe26802724d1436d6083ff17802bc66a793c |
| SHA256 | 1a621d89ef9377869faf8c6bf1af7e6a370d12054f21ecdeb9ba266815929d10 |
| SHA512 | b83f349899a9c4a99a50120d5d55a6d4ded9373db3dbf26a24abf4e80254a1119483ec00d0fb58b13ade78a868705b5f55cfc829ffc12082a54e7111c34c1fc3 |
Analysis: behavioral2
Detonation Overview
Submitted
2023-06-04 11:31
Reported
2023-06-04 11:34
Platform
win10v2004-20230220-en
Max time kernel
151s
Max time network
152s
Command Line
Signatures
FlawedAmmyy RAT
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Ammyy | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = 4f5c93d0e777ade2ca2d7efbe7d82cd03a773a1b54538db160a8d0a79867ede586a2261c487a6ec6b2cac3c8c7652cbdb454e18b9d079b377b3f7aaf9415f819c7bf15d42a | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2392 wrote to memory of 2720 | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | C:\Users\Admin\AppData\Local\Temp\08917699.exe |
| PID 2392 wrote to memory of 2720 | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | C:\Users\Admin\AppData\Local\Temp\08917699.exe |
| PID 2392 wrote to memory of 2720 | N/A | C:\Users\Admin\AppData\Local\Temp\08917699.exe | C:\Users\Admin\AppData\Local\Temp\08917699.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\08917699.exe
"C:\Users\Admin\AppData\Local\Temp\08917699.exe"
C:\Users\Admin\AppData\Local\Temp\08917699.exe
"C:\Users\Admin\AppData\Local\Temp\08917699.exe" -service -lunch
C:\Users\Admin\AppData\Local\Temp\08917699.exe
"C:\Users\Admin\AppData\Local\Temp\08917699.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | acsm.ru | udp |
| RU | 77.106.252.188:80 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| US | 8.8.8.8:53 | 254.130.241.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 188.252.106.77.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| US | 8.8.8.8:53 | 123.108.74.40.in-addr.arpa | udp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| US | 52.168.117.169:443 | tcp | |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| US | 8.8.8.8:53 | 44.8.109.52.in-addr.arpa | udp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| US | 93.184.220.29:80 | tcp | |
| US | 8.247.210.254:80 | tcp | |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| US | 8.247.210.254:80 | tcp | |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
| RU | 77.106.252.188:48654 | acsm.ru | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\settings3.bin
| MD5 | 8411a75a1e371db9594e9943e3c6c850 |
| SHA1 | 575abe26802724d1436d6083ff17802bc66a793c |
| SHA256 | 1a621d89ef9377869faf8c6bf1af7e6a370d12054f21ecdeb9ba266815929d10 |
| SHA512 | b83f349899a9c4a99a50120d5d55a6d4ded9373db3dbf26a24abf4e80254a1119483ec00d0fb58b13ade78a868705b5f55cfc829ffc12082a54e7111c34c1fc3 |