Analysis Overview
SHA256
130fdbe7e4608b84b16122bca61aee0943d29b02222bd11bbb6f99708cf53fa0
Threat Level: Known bad
The file 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.zip was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Asyncrat family
Async RAT payload
Async RAT payload
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Delays execution with timeout.exe
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-02 13:14
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 13:14
Reported
2024-04-02 13:17
Platform
win7-20240221-en
Max time kernel
144s
Max time network
150s
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\tmp5CEF.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/2208-0-0x0000000000AA0000-0x0000000000AB6000-memory.dmp
memory/2208-1-0x0000000074300000-0x00000000749EE000-memory.dmp
memory/2208-2-0x0000000004870000-0x00000000048B0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp5CEF.tmp.bat
| MD5 | d15f36bda2baad93c8ce856a9cc3c304 |
| SHA1 | ec10b85c9b0822b33158c0a3b6fa994604bae845 |
| SHA256 | 3cd19ac58d31906d3107c24289c50e8ff6262e73b5e407396b4334a60855fe4d |
| SHA512 | b1d4768d839c5490751f63e0c3efed75dafb501ee5f0763ca1b8efff0dde4a68692bc73f0d8b75e5f95f6f1733bc1469c8275e41a55305f8eec6c6fdebe02fd3 |
memory/2208-12-0x0000000074300000-0x00000000749EE000-memory.dmp
\Users\Admin\AppData\Roaming\svchos.exe
| MD5 | c1ade258f05c512e98ebc4d9d1165f8a |
| SHA1 | acf20f6a7dc7841ae06f801b887289fdc99e0488 |
| SHA256 | 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759 |
| SHA512 | 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076 |
memory/2832-16-0x0000000001280000-0x0000000001296000-memory.dmp
memory/2832-17-0x00000000742B0000-0x000000007499E000-memory.dmp
memory/2832-18-0x00000000742B0000-0x000000007499E000-memory.dmp
memory/2832-19-0x0000000004B10000-0x0000000004B50000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-02 13:14
Reported
2024-04-02 13:17
Platform
win10v2004-20240319-en
Max time kernel
146s
Max time network
168s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\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\tmp9AC9.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"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4080 --field-trial-handle=2244,i,11986678581565715302,451159359636456336,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 167.161.23.2.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 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| NL | 172.217.23.202:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 202.23.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.139.73.23.in-addr.arpa | udp |
| US | 13.107.246.64:443 | tcp | |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 202.110.86.104.in-addr.arpa | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| 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 |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| 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 |
| US | 8.8.8.8:53 | 16.173.189.20.in-addr.arpa | udp |
Files
memory/3716-0-0x00000000001E0000-0x00000000001F6000-memory.dmp
memory/3716-1-0x0000000074720000-0x0000000074ED0000-memory.dmp
memory/3716-2-0x00000000026A0000-0x00000000026B0000-memory.dmp
memory/3716-3-0x0000000004CC0000-0x0000000004D5C000-memory.dmp
memory/3716-8-0x0000000074720000-0x0000000074ED0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp9AC9.tmp.bat
| MD5 | 6d28b4e459b79a10315874863a5b517e |
| SHA1 | 38633c677fa3cc4d57dca911181e2d59a3a09c81 |
| SHA256 | 6176a1cd408f8273f51b37a99794f8ec16d60bc4f511af6547806d7389461282 |
| SHA512 | 082bd169a74604ebd3abbc108321bbf8452835262d273e5c3565687e26f3c5ac2209128b14c8f7c30fce2c5ced21cf00b42b60a01d7708993b6ed402bde3e609 |
C:\Users\Admin\AppData\Roaming\svchos.exe
| MD5 | c1ade258f05c512e98ebc4d9d1165f8a |
| SHA1 | acf20f6a7dc7841ae06f801b887289fdc99e0488 |
| SHA256 | 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759 |
| SHA512 | 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076 |
memory/3764-13-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/3764-14-0x0000000004B70000-0x0000000004B80000-memory.dmp
memory/3764-15-0x00000000054D0000-0x0000000005A74000-memory.dmp
memory/3764-16-0x00000000050C0000-0x0000000005152000-memory.dmp
memory/3764-17-0x00000000050B0000-0x00000000050BA000-memory.dmp
memory/3764-18-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/3764-19-0x0000000004B70000-0x0000000004B80000-memory.dmp