Analysis Overview
SHA256
4f4432ddc88c1bca9f139589c8ce1fcaf016ff167d189e6fb6231057fdf1fff7
Threat Level: Known bad
The file 0x000300000002287f-434.dat was found to be: Known bad.
Malicious Activity Summary
Async RAT payload
AsyncRat
Asyncrat family
Async RAT payload
Checks computer location settings
Executes dropped EXE
Enumerates physical storage devices
Uses Task Scheduler COM API
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-03-19 15:27
Signatures
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Asyncrat family
Analysis: behavioral1
Detonation Overview
Submitted
2023-03-19 15:27
Reported
2023-03-19 15:30
Platform
win7-20230220-en
Max time kernel
122s
Max time network
134s
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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\syscall.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0x000300000002287f-434.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\0x000300000002287f-434.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\syscall.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\0x000300000002287f-434.exe
"C:\Users\Admin\AppData\Local\Temp\0x000300000002287f-434.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "syscall" /tr '"C:\Users\Admin\AppData\Roaming\syscall.exe"' & exit
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp19D8.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "syscall" /tr '"C:\Users\Admin\AppData\Roaming\syscall.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\syscall.exe
"C:\Users\Admin\AppData\Roaming\syscall.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ii-usd.at.ply.gg | udp |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
Files
memory/1236-54-0x0000000001370000-0x0000000001386000-memory.dmp
memory/1236-55-0x000000001AA60000-0x000000001AAE0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp19D8.tmp.bat
| MD5 | ca0b9c176f48414491de060a94c604a6 |
| SHA1 | 8c7e229f28d3694db2cb311b25edc15fc0e81dab |
| SHA256 | 46f72042397ac4749b3143ac1f648d1f9d7088f5bae9655f2e46d3f9cae62cea |
| SHA512 | 18ffdd92fbfdc622278e4c3e34feee7a526d3605bb5378620d65d4ce9eb07ee9c78584da27f573e2093415c63cd9796e287795c3ce7e2c946b0890008952e12f |
C:\Users\Admin\AppData\Local\Temp\tmp19D8.tmp.bat
| MD5 | ca0b9c176f48414491de060a94c604a6 |
| SHA1 | 8c7e229f28d3694db2cb311b25edc15fc0e81dab |
| SHA256 | 46f72042397ac4749b3143ac1f648d1f9d7088f5bae9655f2e46d3f9cae62cea |
| SHA512 | 18ffdd92fbfdc622278e4c3e34feee7a526d3605bb5378620d65d4ce9eb07ee9c78584da27f573e2093415c63cd9796e287795c3ce7e2c946b0890008952e12f |
C:\Users\Admin\AppData\Roaming\syscall.exe
| MD5 | 2d7e104a199600d550879e132d877ee7 |
| SHA1 | 9a702148bcb48c8f666d275b0b08bf2b1711e069 |
| SHA256 | 4f4432ddc88c1bca9f139589c8ce1fcaf016ff167d189e6fb6231057fdf1fff7 |
| SHA512 | c78a6954104da75ffb6a98447fe36f8297d27929a1eab540eed67e4ec42d35ad46fe0037bf29d7904f36433dce34a27b92556e4e376ef79c1914cc54676adc33 |
C:\Users\Admin\AppData\Roaming\syscall.exe
| MD5 | 2d7e104a199600d550879e132d877ee7 |
| SHA1 | 9a702148bcb48c8f666d275b0b08bf2b1711e069 |
| SHA256 | 4f4432ddc88c1bca9f139589c8ce1fcaf016ff167d189e6fb6231057fdf1fff7 |
| SHA512 | c78a6954104da75ffb6a98447fe36f8297d27929a1eab540eed67e4ec42d35ad46fe0037bf29d7904f36433dce34a27b92556e4e376ef79c1914cc54676adc33 |
memory/1280-68-0x0000000001360000-0x0000000001376000-memory.dmp
memory/1280-69-0x000000001A920000-0x000000001A9A0000-memory.dmp
memory/1280-70-0x000000001A920000-0x000000001A9A0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-03-19 15:27
Reported
2023-03-19 15:30
Platform
win10v2004-20230220-en
Max time kernel
139s
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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\0x000300000002287f-434.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\syscall.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\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\0x000300000002287f-434.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\syscall.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\0x000300000002287f-434.exe
"C:\Users\Admin\AppData\Local\Temp\0x000300000002287f-434.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "syscall" /tr '"C:\Users\Admin\AppData\Roaming\syscall.exe"' & exit
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAF8E.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "syscall" /tr '"C:\Users\Admin\AppData\Roaming\syscall.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\syscall.exe
"C:\Users\Admin\AppData\Roaming\syscall.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 | 76.38.195.152.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.81.184.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 202.74.101.95.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ii-usd.at.ply.gg | udp |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 52.152.110.14:443 | tcp | |
| US | 52.168.112.66:443 | tcp | |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 199.176.139.52.in-addr.arpa | udp |
| US | 52.152.110.14:443 | tcp | |
| US | 8.8.8.8:53 | 45.8.109.52.in-addr.arpa | udp |
| US | 209.197.3.8:80 | tcp | |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
| NL | 173.223.113.164:443 | tcp | |
| NL | 173.223.113.131:80 | tcp | |
| US | 204.79.197.203:80 | tcp | |
| US | 52.152.110.14:443 | tcp | |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
| US | 52.152.110.14:443 | tcp | |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
| US | 52.152.110.14:443 | tcp | |
| US | 52.152.110.14:443 | tcp | |
| US | 209.25.141.223:25036 | ii-usd.at.ply.gg | tcp |
Files
memory/2044-133-0x000002085E090000-0x000002085E0A6000-memory.dmp
memory/2044-134-0x000002085FD80000-0x000002085FD90000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpAF8E.tmp.bat
| MD5 | 61f5339dbab00d413994520055e6d203 |
| SHA1 | 0f6802af5a184d33a01ff80251f2c11db65d3d4a |
| SHA256 | 0a0b313be845e2db6ae73c10bc737b3bca555c7ae520ca3abb94dca3e033d5b4 |
| SHA512 | 904161371c674c3f9598e3b2331938b81d7472fe270b0fc4cb199a1fe69b283cfe281625e045a951372417e33a11bd4aceb5b77952807a276d31155541bafc21 |
C:\Users\Admin\AppData\Roaming\syscall.exe
| MD5 | 2d7e104a199600d550879e132d877ee7 |
| SHA1 | 9a702148bcb48c8f666d275b0b08bf2b1711e069 |
| SHA256 | 4f4432ddc88c1bca9f139589c8ce1fcaf016ff167d189e6fb6231057fdf1fff7 |
| SHA512 | c78a6954104da75ffb6a98447fe36f8297d27929a1eab540eed67e4ec42d35ad46fe0037bf29d7904f36433dce34a27b92556e4e376ef79c1914cc54676adc33 |
C:\Users\Admin\AppData\Roaming\syscall.exe
| MD5 | 2d7e104a199600d550879e132d877ee7 |
| SHA1 | 9a702148bcb48c8f666d275b0b08bf2b1711e069 |
| SHA256 | 4f4432ddc88c1bca9f139589c8ce1fcaf016ff167d189e6fb6231057fdf1fff7 |
| SHA512 | c78a6954104da75ffb6a98447fe36f8297d27929a1eab540eed67e4ec42d35ad46fe0037bf29d7904f36433dce34a27b92556e4e376ef79c1914cc54676adc33 |
memory/3484-143-0x000002D4FBAC0000-0x000002D4FBAD0000-memory.dmp
memory/3484-144-0x000002D4FBAC0000-0x000002D4FBAD0000-memory.dmp