Analysis Overview
SHA256
fc1ad8d1483f0b1c94b55be7b7587b86485022ca4e62e6fb0c06e392dfaeecd2
Threat Level: Known bad
The file C11Bootstrapper.zip was found to be: Known bad.
Malicious Activity Summary
Asyncrat family
Umbral family
AsyncRat
Async RAT payload
Detect Umbral payload
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-04-19 20:54
Signatures
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Asyncrat family
Detect Umbral payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Umbral family
Unsigned PE
| 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 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-19 20:54
Reported
2024-04-19 20:57
Platform
win7-20231129-en
Max time kernel
148s
Max time network
123s
Command Line
Signatures
AsyncRat
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\C11Bootstrapper\Properties\C11Setup.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\C11Bootstrapper\Properties\C11Setup.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\C11Bootstrapper\Properties\C11Setup.exe
"C:\Users\Admin\AppData\Local\Temp\C11Bootstrapper\Properties\C11Setup.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp |
Files
memory/1700-0-0x0000000000DC0000-0x0000000000E04000-memory.dmp
memory/1700-2-0x000007FEF5820000-0x000007FEF620C000-memory.dmp
memory/1700-3-0x000000001A780000-0x000000001A800000-memory.dmp
memory/1700-4-0x0000000077240000-0x00000000773E9000-memory.dmp
memory/1700-5-0x000007FEF5820000-0x000007FEF620C000-memory.dmp
memory/1700-6-0x000000001A780000-0x000000001A800000-memory.dmp
memory/1700-7-0x0000000077240000-0x00000000773E9000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-19 20:54
Reported
2024-04-19 20:57
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
153s
Command Line
Signatures
AsyncRat
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\C11Bootstrapper\Properties\C11Setup.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\C11Bootstrapper\Properties\C11Setup.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\C11Bootstrapper\Properties\C11Setup.exe
"C:\Users\Admin\AppData\Local\Temp\C11Bootstrapper\Properties\C11Setup.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=4056 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:4449 | tcp | |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:4449 | tcp | |
| US | 8.8.8.8:53 | 31.121.18.2.in-addr.arpa | udp |
| N/A | 127.0.0.1:4449 | tcp | |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 172.217.169.10:443 | chromewebstore.googleapis.com | tcp |
| N/A | 127.0.0.1:4449 | tcp | |
| US | 8.8.8.8:53 | 10.169.217.172.in-addr.arpa | udp |
| N/A | 127.0.0.1:4449 | tcp | |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp | |
| US | 8.8.8.8:53 | 1.173.189.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:4449 | tcp | |
| N/A | 127.0.0.1:4449 | tcp |
Files
memory/1380-0-0x00000000003D0000-0x0000000000414000-memory.dmp
memory/1380-1-0x00007FF97B670000-0x00007FF97C131000-memory.dmp
memory/1380-3-0x000000001B2C0000-0x000000001B2D0000-memory.dmp
memory/1380-4-0x00007FF97B670000-0x00007FF97C131000-memory.dmp
memory/1380-5-0x000000001B2C0000-0x000000001B2D0000-memory.dmp