Analysis Overview
SHA256
f4cbcc2254e8b74d272b7148322a08159d4e4293fa825cb7547e319fff13ca8d
Threat Level: Known bad
The file feather.exe was found to be: Known bad.
Malicious Activity Summary
Detect Xworm Payload
AsyncRat
Xworm
Async RAT payload
Command and Scripting Interpreter: PowerShell
Executes dropped EXE
Checks computer location settings
Drops startup file
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-01 21:08
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-01 21:08
Reported
2024-06-01 21:23
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
152s
Command Line
Signatures
AsyncRat
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Xworm
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\feather.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Runtime Broker.lnk | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Runtime Broker.lnk | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Client.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
| N/A | N/A | C:\Users\Admin\Runtime Broker.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Runtime Broker = "C:\\Users\\Admin\\Runtime Broker.exe" | C:\Users\Admin\AppData\Roaming\XClient.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\Roaming\Client.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\Runtime Broker.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Client.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\XClient.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\feather.exe
"C:\Users\Admin\AppData\Local\Temp\feather.exe"
C:\Users\Admin\AppData\Roaming\Client.exe
"C:\Users\Admin\AppData\Roaming\Client.exe"
C:\Users\Admin\AppData\Roaming\XClient.exe
"C:\Users\Admin\AppData\Roaming\XClient.exe"
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\Runtime Broker.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Runtime Broker.exe'
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Runtime Broker" /tr "C:\Users\Admin\Runtime Broker.exe"
C:\Users\Admin\Runtime Broker.exe
"C:\Users\Admin\Runtime Broker.exe"
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /delete /f /tn "Runtime Broker"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC1AA.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| N/A | 127.0.0.1:38173 | tcp | |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:38173 | tcp | |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:38173 | tcp | |
| US | 8.8.8.8:53 | 19.ip.gl.ply.gg | udp |
| US | 147.185.221.19:38173 | 19.ip.gl.ply.gg | tcp |
| US | 8.8.8.8:53 | 19.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:38173 | tcp | |
| US | 147.185.221.19:38173 | 19.ip.gl.ply.gg | tcp |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:38173 | tcp | |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| 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 |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| N/A | 127.0.0.1:38173 | tcp | |
| US | 8.8.8.8:53 | 200.79.70.13.in-addr.arpa | udp |
| N/A | 127.0.0.1:38173 | tcp |
Files
memory/4792-0-0x00007FFDB32A3000-0x00007FFDB32A5000-memory.dmp
memory/4792-1-0x0000000000AD0000-0x0000000000B00000-memory.dmp
C:\Users\Admin\AppData\Roaming\Client.exe
| MD5 | f8ec02f0ad41f3e984037b398641f3bb |
| SHA1 | 88d64ad9840e65bcd5d27323a0fe2214d00d7346 |
| SHA256 | 12cdd3df8d582bc30a49c2b4f8cf96d522e0f01d64f2e7df17276dc89fdb1a75 |
| SHA512 | 31d177cceba0a3698f696c5daa0265ebe3fecf8a2a2934290e574789811a68c7313c1b0b40b1bae88666088c87fc9336941e10f26952a442c9cc3ca9637f5322 |
C:\Users\Admin\AppData\Roaming\XClient.exe
| MD5 | 74fcef65a288af74b2a36dd6895264f8 |
| SHA1 | d5d73bb877f0aee6962f49c87603eec9d5b4846b |
| SHA256 | ed308d6d8768d98145916f4529e0b444058105f401acf1e01bdacadf39a637b1 |
| SHA512 | c342445070326c126ae5841cc88a3cdcd2ae6bd995a37903ca6cacb517dc3ed7ada4c9fb7c020ad814824d2a5a29fd909da895c40475aec5ec6499778e25772a |
memory/228-21-0x0000000000370000-0x0000000000388000-memory.dmp
memory/4056-27-0x0000000000C10000-0x0000000000C2A000-memory.dmp
memory/228-28-0x00007FFDB32A0000-0x00007FFDB3D61000-memory.dmp
memory/228-29-0x00007FFDB32A0000-0x00007FFDB3D61000-memory.dmp
memory/3116-30-0x000001ABD0B50000-0x000001ABD0B72000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_isarojeb.j4y.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | d85ba6ff808d9e5444a4b369f5bc2730 |
| SHA1 | 31aa9d96590fff6981b315e0b391b575e4c0804a |
| SHA256 | 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f |
| SHA512 | 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 77d622bb1a5b250869a3238b9bc1402b |
| SHA1 | d47f4003c2554b9dfc4c16f22460b331886b191b |
| SHA256 | f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb |
| SHA512 | d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | eb1ad317bd25b55b2bbdce8a28a74a94 |
| SHA1 | 98a3978be4d10d62e7411946474579ee5bdc5ea6 |
| SHA256 | 9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98 |
| SHA512 | d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | cfb22e9b9c08bb1cfe944b622eb7adcb |
| SHA1 | a299c701fb4da010999e61f9127262c7deb4fd97 |
| SHA256 | f60461e45422c16638ab514984d3a3b4e1ec8522c224543046a7d8fdf0090af2 |
| SHA512 | 67962f0976a16c4323d14d4f7f6fe23bf1145db115be59b25f8fdfbe49d2d0672ed868ce7d69cb33b790f50f37b1187d5bd64fddfeb20260c88d4c5f75be4a57 |
memory/4056-83-0x000000001C150000-0x000000001C15C000-memory.dmp
memory/228-84-0x00007FFDB32A0000-0x00007FFDB3D61000-memory.dmp
memory/228-85-0x00007FFDB32A0000-0x00007FFDB3D61000-memory.dmp
memory/4056-91-0x000000001D040000-0x000000001D1E9000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpC1AA.tmp.bat
| MD5 | 3005df3314b5665a6046c3fb32c82f9d |
| SHA1 | d227b8243351e347da81d6e94bf17ce321654b9b |
| SHA256 | 6006eb7c235beee1a8825d76167822447d0898bec732724dd1b1c54b8f3ae1af |
| SHA512 | dd3dd0407fd7ccdbf38864742e70c8d6664833410af6cf6ab97b14db066828fa8857358f2281e9797a30f494a098a5a1075f2044e22a59d30296b938c2117977 |