Analysis Overview
SHA256
7cea3459fe006e787947d8eedc2770285061bc5e9a0ca0ffc7213a96756341fb
Threat Level: Known bad
The file regasms.exe was found to be: Known bad.
Malicious Activity Summary
Async RAT payload
Asyncrat family
AsyncRat
Reads user/profile data of web browsers
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-25 13:52
Signatures
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Asyncrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-25 13:52
Reported
2024-05-25 13:56
Platform
win7-20240220-en
Max time kernel
120s
Max time network
146s
Command Line
Signatures
AsyncRat
Reads user/profile data of web browsers
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\regasms.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\regasms.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\regasms.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\regasms.exe
"C:\Users\Admin\AppData\Local\Temp\regasms.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| IT | 185.196.11.252:1338 | leetboy.dynuddns.net | tcp |
| IT | 185.196.11.252:1338 | leetboy.dynuddns.net | tcp |
Files
memory/1728-0-0x000000007450E000-0x000000007450F000-memory.dmp
memory/1728-1-0x0000000000B00000-0x0000000000B16000-memory.dmp
memory/1728-2-0x0000000074500000-0x0000000074BEE000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
| MD5 | 29f65ba8e88c063813cc50a4ea544e93 |
| SHA1 | 05a7040d5c127e68c25d81cc51271ffb8bef3568 |
| SHA256 | 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184 |
| SHA512 | e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa |
C:\Users\Admin\AppData\Local\Temp\Tar3F29.tmp
| MD5 | 435a9ac180383f9fa094131b173a2f7b |
| SHA1 | 76944ea657a9db94f9a4bef38f88c46ed4166983 |
| SHA256 | 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34 |
| SHA512 | 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a |
memory/1728-40-0x000000007450E000-0x000000007450F000-memory.dmp
memory/1728-41-0x0000000074500000-0x0000000074BEE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-25 13:52
Reported
2024-05-25 13:57
Platform
win10v2004-20240426-en
Max time kernel
148s
Max time network
153s
Command Line
Signatures
AsyncRat
Reads user/profile data of web browsers
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\regasms.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\regasms.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\regasms.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\regasms.exe
"C:\Users\Admin\AppData\Local\Temp\regasms.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| 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 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.155:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 155.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| IT | 185.196.11.252:1338 | leetboy.dynuddns.net | tcp |
| NL | 23.62.61.155:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 252.11.196.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/1488-0-0x000000007485E000-0x000000007485F000-memory.dmp
memory/1488-1-0x0000000000EE0000-0x0000000000EF6000-memory.dmp
memory/1488-2-0x0000000074850000-0x0000000075000000-memory.dmp
memory/1488-3-0x0000000006170000-0x0000000006714000-memory.dmp
memory/1488-4-0x0000000005CA0000-0x0000000005D32000-memory.dmp
memory/1488-5-0x0000000005E30000-0x0000000005E3A000-memory.dmp
memory/1488-8-0x0000000006EB0000-0x0000000006F4C000-memory.dmp
memory/1488-9-0x0000000006990000-0x00000000069F6000-memory.dmp
memory/1488-10-0x000000007485E000-0x000000007485F000-memory.dmp
memory/1488-11-0x0000000074850000-0x0000000075000000-memory.dmp