Analysis Overview
SHA256
8ba94e3e5f1254c6181879dd1110221c3d88b0caefd316282a7c71a2a8384bc0
Threat Level: Known bad
The file 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.zip was found to be: Known bad.
Malicious Activity Summary
Async RAT payload
Asyncrat family
AsyncRat
Async RAT payload
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Enumerates physical storage devices
Unsigned PE
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-02 11:27
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
2024-04-02 11:27
Reported
2024-04-02 11:29
Platform
win7-20231129-en
Max time kernel
141s
Max time network
145s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe
"C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp23E5.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\svchos.exe
"C:\Users\Admin\AppData\Roaming\svchos.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
Files
memory/2860-0-0x0000000000AF0000-0x0000000000B06000-memory.dmp
memory/2860-1-0x0000000073F30000-0x000000007461E000-memory.dmp
memory/2860-2-0x0000000004700000-0x0000000004740000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp23E5.tmp.bat
| MD5 | 4c60902816ee99bfeffd142e19715994 |
| SHA1 | 816fe83948134a64621803ba89c7a1ce56d0bc48 |
| SHA256 | 16dc73674accf1b56eb4d7c96a7c077b19de1abb2e1b6ee9a07a64dd5ceff415 |
| SHA512 | c337e52292042c7d847e38c0bc0da6bab67e51c177833b5a41db668f7f9a74d2e717247c7b2a7aaa60c0e45ed034df133b5e63aa7db7b121da773af5b0bc9142 |
memory/2860-12-0x0000000073F30000-0x000000007461E000-memory.dmp
memory/2616-16-0x00000000001A0000-0x00000000001B6000-memory.dmp
C:\Users\Admin\AppData\Roaming\svchos.exe
| MD5 | c1ade258f05c512e98ebc4d9d1165f8a |
| SHA1 | acf20f6a7dc7841ae06f801b887289fdc99e0488 |
| SHA256 | 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759 |
| SHA512 | 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076 |
memory/2616-17-0x0000000073EE0000-0x00000000745CE000-memory.dmp
memory/2616-18-0x0000000004B00000-0x0000000004B40000-memory.dmp
memory/2616-19-0x0000000073EE0000-0x00000000745CE000-memory.dmp
memory/2616-20-0x0000000004B00000-0x0000000004B40000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-02 11:27
Reported
2024-04-02 11:29
Platform
win10v2004-20240226-en
Max time kernel
141s
Max time network
150s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe
"C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp42E5.tmp.bat""
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"'
C:\Users\Admin\AppData\Roaming\svchos.exe
"C:\Users\Admin\AppData\Roaming\svchos.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.66.18.2.in-addr.arpa | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
Files
memory/3176-0-0x00000000005D0000-0x00000000005E6000-memory.dmp
memory/3176-1-0x0000000075420000-0x0000000075BD0000-memory.dmp
memory/3176-2-0x0000000004FD0000-0x0000000004FE0000-memory.dmp
memory/3176-3-0x0000000004FE0000-0x000000000507C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp42E5.tmp.bat
| MD5 | ecdc16c0a2869c185de63ddf163f264a |
| SHA1 | 45a548f97abd016b1fdb7f1086029ccc6cc74a8b |
| SHA256 | 8bee01464cfdb8b2524fcf30f4cf3fe3a09b9cd409387b0c121862654b9de98c |
| SHA512 | 5164b7c7865c7f72f8f1ad7dd97f4ec5cb95be47f07d34b11739420853010b79096c1e5c6e9f8b1147328f16bbfba805cbee097af376a5dc3c0173ee2d97cc07 |
memory/3176-9-0x0000000075420000-0x0000000075BD0000-memory.dmp
C:\Users\Admin\AppData\Roaming\svchos.exe
| MD5 | c1ade258f05c512e98ebc4d9d1165f8a |
| SHA1 | acf20f6a7dc7841ae06f801b887289fdc99e0488 |
| SHA256 | 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759 |
| SHA512 | 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076 |
memory/3428-13-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/3428-14-0x0000000000920000-0x0000000000930000-memory.dmp
memory/3428-15-0x0000000005110000-0x00000000056B4000-memory.dmp
memory/3428-16-0x0000000004D40000-0x0000000004DD2000-memory.dmp
memory/3428-17-0x0000000004D30000-0x0000000004D3A000-memory.dmp
memory/3428-18-0x0000000075390000-0x0000000075B40000-memory.dmp
memory/3428-19-0x0000000000920000-0x0000000000930000-memory.dmp