Analysis Overview
SHA256
7cea3459fe006e787947d8eedc2770285061bc5e9a0ca0ffc7213a96756341fb
Threat Level: Known bad
The file regasms.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Async RAT payload
Asyncrat family
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: behavioral2
Detonation Overview
Submitted
2024-05-25 13:52
Reported
2024-05-25 13:56
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 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| IT | 185.196.11.252:1338 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 252.11.196.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| NL | 23.62.61.155:443 | www.bing.com | 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 |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 155.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 45.19.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.143.182.52.in-addr.arpa | udp |
Files
memory/3460-0-0x000000007472E000-0x000000007472F000-memory.dmp
memory/3460-1-0x0000000000050000-0x0000000000066000-memory.dmp
memory/3460-2-0x0000000074720000-0x0000000074ED0000-memory.dmp
memory/3460-3-0x00000000050E0000-0x0000000005684000-memory.dmp
memory/3460-4-0x0000000004CD0000-0x0000000004D62000-memory.dmp
memory/3460-5-0x0000000004CC0000-0x0000000004CCA000-memory.dmp
memory/3460-8-0x0000000005F10000-0x0000000005FAC000-memory.dmp
memory/3460-9-0x0000000005A00000-0x0000000005A66000-memory.dmp
memory/3460-10-0x000000007472E000-0x000000007472F000-memory.dmp
memory/3460-11-0x0000000074720000-0x0000000074ED0000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-25 13:52
Reported
2024-05-25 13:55
Platform
win7-20240508-en
Max time kernel
118s
Max time network
148s
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 |
Files
memory/2220-0-0x000000007473E000-0x000000007473F000-memory.dmp
memory/2220-1-0x0000000000810000-0x0000000000826000-memory.dmp
memory/2220-2-0x0000000074730000-0x0000000074E1E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab3516.tmp
| MD5 | 29f65ba8e88c063813cc50a4ea544e93 |
| SHA1 | 05a7040d5c127e68c25d81cc51271ffb8bef3568 |
| SHA256 | 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184 |
| SHA512 | e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa |
memory/2220-19-0x000000007473E000-0x000000007473F000-memory.dmp
memory/2220-20-0x0000000074730000-0x0000000074E1E000-memory.dmp