Analysis Overview
SHA256
a89667a64a05760547dd5b7f8a87181fb145a48ed2492392918e653c7e5bb9a6
Threat Level: Known bad
The file xtPT79JKvvlE.exe was found to be: Known bad.
Malicious Activity Summary
Async RAT payload
Asyncrat family
AsyncRat
Deletes itself
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Delays execution with timeout.exe
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-04-05 14:35
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
2024-04-05 14:35
Reported
2024-04-05 14:37
Platform
win7-20240221-en
Max time kernel
121s
Max time network
123s
Command Line
Signatures
AsyncRat
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\cmd.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2364 wrote to memory of 776 | N/A | C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe | C:\Windows\system32\cmd.exe |
| PID 2364 wrote to memory of 776 | N/A | C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe | C:\Windows\system32\cmd.exe |
| PID 2364 wrote to memory of 776 | N/A | C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe | C:\Windows\system32\cmd.exe |
| PID 776 wrote to memory of 1972 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\timeout.exe |
| PID 776 wrote to memory of 1972 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\timeout.exe |
| PID 776 wrote to memory of 1972 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\timeout.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe
"C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe"
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp54CC.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | promesasalvaro1.duckdns.org | udp |
| CO | 179.13.0.175:7091 | promesasalvaro1.duckdns.org | tcp |
| CO | 179.13.0.175:7091 | promesasalvaro1.duckdns.org | tcp |
Files
memory/2364-0-0x0000000000990000-0x00000000009A2000-memory.dmp
memory/2364-1-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp
memory/2364-2-0x0000000001F60000-0x0000000001FE0000-memory.dmp
memory/2364-20-0x000000001B410000-0x000000001B474000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
| MD5 | 29f65ba8e88c063813cc50a4ea544e93 |
| SHA1 | 05a7040d5c127e68c25d81cc51271ffb8bef3568 |
| SHA256 | 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184 |
| SHA512 | e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa |
C:\Users\Admin\AppData\Local\Temp\Tar54AC.tmp
| MD5 | 435a9ac180383f9fa094131b173a2f7b |
| SHA1 | 76944ea657a9db94f9a4bef38f88c46ed4166983 |
| SHA256 | 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34 |
| SHA512 | 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a |
C:\Users\Admin\AppData\Local\Temp\tmp54CC.tmp.bat
| MD5 | 4b08e5044caa4847e5f2dd7f975d5e18 |
| SHA1 | d3025efd1e5d2b6c5b383e70e9c4897835174dd8 |
| SHA256 | 1d5d55a83c03d8d04535219573e30300152d7ed53fde26057f8fec26d79ebee4 |
| SHA512 | d589a8cbce77b1315dee5343fe96ba0ef35133090eda0f4eddcce548d54aa071f1fcbf2452781d97fb7009648271d38137e7467d5a2282b93d1ead17f81e74f7 |
memory/2364-49-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-05 14:35
Reported
2024-04-05 14:37
Platform
win10v2004-20240226-en
Max time kernel
143s
Max time network
155s
Command Line
Signatures
AsyncRat
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1928 wrote to memory of 4352 | N/A | C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe | C:\Windows\system32\cmd.exe |
| PID 1928 wrote to memory of 4352 | N/A | C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe | C:\Windows\system32\cmd.exe |
| PID 4352 wrote to memory of 512 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\timeout.exe |
| PID 4352 wrote to memory of 512 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\timeout.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe
"C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.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=1408 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8013.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 123.136.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | promesasalvaro1.duckdns.org | udp |
| CO | 179.13.0.175:7091 | promesasalvaro1.duckdns.org | tcp |
| US | 8.8.8.8:53 | 175.0.13.179.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| GB | 172.217.169.74:443 | tcp | |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 65.139.73.23.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 97.136.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 121.136.73.23.in-addr.arpa | udp |
| CO | 179.13.0.175:7091 | promesasalvaro1.duckdns.org | tcp |
| US | 8.8.8.8:53 | 4.173.189.20.in-addr.arpa | udp |
Files
memory/1928-0-0x0000000000AF0000-0x0000000000B02000-memory.dmp
memory/1928-1-0x00007FF82DA60000-0x00007FF82E521000-memory.dmp
memory/1928-2-0x000000001B7A0000-0x000000001B7B0000-memory.dmp
memory/1928-5-0x00007FF83B470000-0x00007FF83B489000-memory.dmp
memory/1928-6-0x00007FF82DA60000-0x00007FF82E521000-memory.dmp
memory/1928-7-0x000000001B7A0000-0x000000001B7B0000-memory.dmp
memory/1928-8-0x000000001D0F0000-0x000000001D166000-memory.dmp
memory/1928-9-0x000000001D070000-0x000000001D0D4000-memory.dmp
memory/1928-10-0x000000001D0D0000-0x000000001D0EE000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp8013.tmp.bat
| MD5 | 8efe9af2bb80e32d091e046112f68d8f |
| SHA1 | 3d455d6bdc876592bc3f484d1fb0e6d78b8e2354 |
| SHA256 | 75807a0828423669ccec588c1c16d5df453f0ad2d2fe211c483cf7ba6ca2b606 |
| SHA512 | d9356eed5b5eeaa908fad4d362895a2e4185732f9c53e3341acd3cdf7809183fd84ec30d87e2a71742e65c065451f076b60fb1b68eba7d38357592dbd1aa0d3b |
memory/1928-15-0x00007FF82DA60000-0x00007FF82E521000-memory.dmp
memory/1928-16-0x00007FF83B470000-0x00007FF83B489000-memory.dmp