Analysis Overview
SHA256
0fa269be03146fff09c0ed89d794dc3c141f9e60a5c1e83c432a022294e2a19d
Threat Level: Known bad
The file B099F31FF999B0AAC37E9DE2E3160CE6.exe was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Asyncrat family
Async RAT payload
Async RAT payload
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Delays execution with timeout.exe
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-31 16:31
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
2024-05-31 16:31
Reported
2024-05-31 16:33
Platform
win7-20240508-en
Max time kernel
118s
Max time network
153s
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\notepad.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\B099F31FF999B0AAC37E9DE2E3160CE6.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\B099F31FF999B0AAC37E9DE2E3160CE6.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\B099F31FF999B0AAC37E9DE2E3160CE6.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\notepad.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\B099F31FF999B0AAC37E9DE2E3160CE6.exe
"C:\Users\Admin\AppData\Local\Temp\B099F31FF999B0AAC37E9DE2E3160CE6.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "notepad" /tr '"C:\Users\Admin\AppData\Roaming\notepad.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp34A7.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "notepad" /tr '"C:\Users\Admin\AppData\Roaming\notepad.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\notepad.exe
"C:\Users\Admin\AppData\Roaming\notepad.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:7707 | tcp | |
| US | 8.8.8.8:53 | drasticqq.zapto.org | udp |
| NL | 91.92.243.101:8808 | drasticqq.zapto.org | tcp |
Files
memory/3068-0-0x000000007441E000-0x000000007441F000-memory.dmp
memory/3068-1-0x00000000003C0000-0x00000000003D2000-memory.dmp
memory/3068-2-0x0000000074410000-0x0000000074AFE000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp34A7.tmp.bat
| MD5 | 065425a51dd4df8095a8d2171df2262b |
| SHA1 | f500daa49cb006d5bb3cef3bfc55e2758b2a897a |
| SHA256 | 470c2549f39b94dee3e56f26594855e14ffe90046a79a306570712403178fc05 |
| SHA512 | 7e6a11f84232d38a4402f798329799deb31769df8be2832f1a868723a2d8bd91504b3f8657482372ba47a5ac3c64d5ef0dafad04f0bb3a9601ad9b1e65995c68 |
memory/3068-12-0x0000000074410000-0x0000000074AFE000-memory.dmp
\Users\Admin\AppData\Roaming\notepad.exe
| MD5 | b099f31ff999b0aac37e9de2e3160ce6 |
| SHA1 | 03e35f01dbb3286c943e69771cd630757cd16bdf |
| SHA256 | 0fa269be03146fff09c0ed89d794dc3c141f9e60a5c1e83c432a022294e2a19d |
| SHA512 | 833b9200854811d35a243938dd9f47bb53be3559716438afd91fb8eabf282c6a23d49b4a4e3391e9bccd339048a65d75ec18ba4e8b922caf46d70d83b8a98079 |
memory/2904-16-0x00000000001B0000-0x00000000001C2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-31 16:31
Reported
2024-05-31 16:33
Platform
win10v2004-20240226-en
Max time kernel
137s
Max time network
156s
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\B099F31FF999B0AAC37E9DE2E3160CE6.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\notepad.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\B099F31FF999B0AAC37E9DE2E3160CE6.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\notepad.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\B099F31FF999B0AAC37E9DE2E3160CE6.exe
"C:\Users\Admin\AppData\Local\Temp\B099F31FF999B0AAC37E9DE2E3160CE6.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "notepad" /tr '"C:\Users\Admin\AppData\Roaming\notepad.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2DC2.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "notepad" /tr '"C:\Users\Admin\AppData\Roaming\notepad.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\notepad.exe
"C:\Users\Admin\AppData\Roaming\notepad.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=3772 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:7707 | tcp | |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | drasticqq.zapto.org | udp |
| NL | 91.92.243.101:8808 | drasticqq.zapto.org | tcp |
| US | 8.8.8.8:53 | 101.243.92.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.71.105.51.in-addr.arpa | udp |
Files
memory/4768-0-0x0000000074FAE000-0x0000000074FAF000-memory.dmp
memory/4768-1-0x0000000000680000-0x0000000000692000-memory.dmp
memory/4768-2-0x0000000074FA0000-0x0000000075750000-memory.dmp
memory/4768-3-0x00000000053C0000-0x000000000545C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp2DC2.tmp.bat
| MD5 | 50eacea63717977be4ea6afc5d73077c |
| SHA1 | 636d02ca1c3d4b189d5b8cb2f51e454671e91911 |
| SHA256 | ecca067eecd3231a7a771a56a4be3b5ced0736c7dd646dcdab594167ed12e875 |
| SHA512 | 4954f7d3443794b3ebe6a80876f4e619aa8f84921a0ff3ef709f633c97c9f6358a1654231e97dca1944d8b7d3be9073b0f24f2304646985d51ce7cdb304c5c8b |
memory/4768-9-0x0000000074FA0000-0x0000000075750000-memory.dmp
C:\Users\Admin\AppData\Roaming\notepad.exe
| MD5 | b099f31ff999b0aac37e9de2e3160ce6 |
| SHA1 | 03e35f01dbb3286c943e69771cd630757cd16bdf |
| SHA256 | 0fa269be03146fff09c0ed89d794dc3c141f9e60a5c1e83c432a022294e2a19d |
| SHA512 | 833b9200854811d35a243938dd9f47bb53be3559716438afd91fb8eabf282c6a23d49b4a4e3391e9bccd339048a65d75ec18ba4e8b922caf46d70d83b8a98079 |
memory/3684-13-0x0000000074F00000-0x00000000756B0000-memory.dmp
memory/3684-16-0x0000000005AC0000-0x0000000006064000-memory.dmp
memory/3684-17-0x0000000005140000-0x00000000051A6000-memory.dmp
memory/3684-18-0x0000000074F00000-0x00000000756B0000-memory.dmp