Analysis Overview
SHA256
66116a575982dc2aafaa6dda428fd3b3f273b9a9b1d7e0ed789983a1c16d4c47
Threat Level: Known bad
The file Feather Nowy.exe was found to be: Known bad.
Malicious Activity Summary
Detect Xworm Payload
Xworm
Xworm family
Contains code to disable Windows Defender
Command and Scripting Interpreter: PowerShell
Drops startup file
Executes dropped EXE
Looks up external IP address via web service
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Scheduled Task/Job: Scheduled Task
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-20 19:56
Signatures
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Xworm family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-20 19:56
Reported
2024-06-20 19:58
Platform
win10-20240404-en
Max time kernel
134s
Max time network
136s
Command Line
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Xworm
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 |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Nowy Feather.lnk | C:\Users\Admin\AppData\Local\Temp\Feather Nowy.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Nowy Feather.lnk | C:\Users\Admin\AppData\Local\Temp\Feather Nowy.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Nowy Feather.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Nowy Feather.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3699363923-1875576828-3287151903-1000\Software\Microsoft\Windows\CurrentVersion\Run\Nowy Feather = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Nowy Feather.exe" | C:\Users\Admin\AppData\Local\Temp\Feather Nowy.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| 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 |
| 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 |
| 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 |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Feather Nowy.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Feather Nowy.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Feather Nowy.exe
"C:\Users\Admin\AppData\Local\Temp\Feather Nowy.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\Local\Temp\Feather Nowy.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Feather Nowy.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\Local\Temp\Nowy Feather.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Nowy Feather.exe'
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Nowy Feather" /tr "C:\Users\Admin\AppData\Local\Temp\Nowy Feather.exe"
C:\Users\Admin\AppData\Local\Temp\Nowy Feather.exe
"C:\Users\Admin\AppData\Local\Temp\Nowy Feather.exe"
C:\Users\Admin\AppData\Local\Temp\Nowy Feather.exe
"C:\Users\Admin\AppData\Local\Temp\Nowy Feather.exe"
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /delete /f /tn "Nowy Feather"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB51.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| N/A | 127.0.0.1:33694 | tcp | |
| US | 8.8.8.8:53 | lake-french.gl.at.ply.gg | udp |
| US | 147.185.221.20:33694 | lake-french.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 20.221.185.147.in-addr.arpa | udp |
| US | 147.185.221.20:33694 | lake-french.gl.at.ply.gg | tcp |
| US | 147.185.221.20:33694 | lake-french.gl.at.ply.gg | tcp |
| US | 147.185.221.20:33694 | lake-french.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 195.98.74.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
Files
memory/224-1-0x0000000000BD0000-0x0000000000C02000-memory.dmp
memory/224-0-0x00007FFA9F7A3000-0x00007FFA9F7A4000-memory.dmp
memory/224-2-0x00007FFA9F7A0000-0x00007FFAA018C000-memory.dmp
memory/2120-7-0x00007FFA9F7A0000-0x00007FFAA018C000-memory.dmp
memory/2120-8-0x000001EF6FFA0000-0x000001EF6FFC2000-memory.dmp
memory/2120-9-0x00007FFA9F7A0000-0x00007FFAA018C000-memory.dmp
memory/2120-13-0x000001EF70150000-0x000001EF701C6000-memory.dmp
memory/2120-12-0x00007FFA9F7A0000-0x00007FFAA018C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fpgnr5zn.xgx.ps1
| MD5 | c4ca4238a0b923820dcc509a6f75849b |
| SHA1 | 356a192b7913b04c54574d18c28d46e6395428ab |
| SHA256 | 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b |
| SHA512 | 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a |
memory/2120-51-0x00007FFA9F7A0000-0x00007FFAA018C000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | ad5cd538ca58cb28ede39c108acb5785 |
| SHA1 | 1ae910026f3dbe90ed025e9e96ead2b5399be877 |
| SHA256 | c9e6cb04d6c893458d5a7e12eb575cf97c3172f5e312b1f63a667cbbc5f0c033 |
| SHA512 | c066c5d9b276a68fa636647bb29aea05bfa2292217bc77f5324d9c1d93117772ee8277e1f7cff91ec8d6b7c05ca078f929cecfdbb09582522a9067f54740af13 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 092012581b38cacd04073f0befea943a |
| SHA1 | 3ae45afb2d715f74dabd25d0c1036e2d1ab13d24 |
| SHA256 | e4f55f299bd74de0c8da82b4ed70a87053a89a785b84c694ed4008bcad0b7d43 |
| SHA512 | 4d305282639e627c7708b2fca9601d4c2436e213fe14a53452f76fc3407c12cc7590628e7ff2e589445ba9bd1cb03c4b210a52e320cbb6c123abff4115490873 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 38cfd78e89066e6ab3b5e8953fd169ad |
| SHA1 | 403f753f985ec352f49e7a1832cae21198f976c2 |
| SHA256 | cea5301c14003508fe49e19fd7866acfbb9c4219dd7e223d3d24282c841c630c |
| SHA512 | ef00224e9ce314c37aba7965f7cc039df06c47564db02c42871a211392b04690538a314e19de6e12c984003136d7e92aca2373e7df24663b6fcf10ef5f55e96b |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | e944d8ee8a5557d6e25cf3f4cece7aa9 |
| SHA1 | 6fa9069cebcee3cf3f085cb96732f0bb93771632 |
| SHA256 | 28562b131a06fef11d4ef40596db13cc7b00037060af38c9d75140ed779eec84 |
| SHA512 | abb5a90c459f6eac6aa3fed70efda59e99f6e5f12f33dea4512a27b0093bf40ed02a7e353d2dec7dfe933a47afd00857195c5dddff2c3512986edca1771f55ae |
memory/224-186-0x00007FFA9F7A3000-0x00007FFA9F7A4000-memory.dmp
memory/224-187-0x00007FFA9F7A0000-0x00007FFAA018C000-memory.dmp
memory/224-188-0x000000001B8F0000-0x000000001B8FA000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Nowy Feather.exe
| MD5 | cc40307c984c4da5778486f9f8e490d0 |
| SHA1 | e0d09dd90cd8e6f2ac21bd91e7003c9bc0a15355 |
| SHA256 | 66116a575982dc2aafaa6dda428fd3b3f273b9a9b1d7e0ed789983a1c16d4c47 |
| SHA512 | ec50078cb9d4cbbf29242a567b1b39e679676cead105e3babb73d20f3d09acf0a83f10e2ba73208dada2e34dea13f16df7ff1c919cee40fe9c1fc3b3cb4d81e4 |
memory/224-192-0x000000001B900000-0x000000001B90A000-memory.dmp
memory/224-193-0x000000001C560000-0x000000001C56E000-memory.dmp
memory/224-195-0x00000000012D0000-0x00000000012DC000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Nowy Feather.exe.log
| MD5 | 16c5fce5f7230eea11598ec11ed42862 |
| SHA1 | 75392d4824706090f5e8907eee1059349c927600 |
| SHA256 | 87ba77c13905298acbac72be90949c4fe0755b6eff9777615aa37f252515f151 |
| SHA512 | 153edd6da59beea6cc411ed7383c32916425d6ebb65f04c65aab7c1d6b25443d143aa8449aa92149de0ad8a975f6ecaa60f9f7574536eec6b38fe5fd3a6c6adc |
memory/224-203-0x00007FFA9F7A0000-0x00007FFAA018C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpB51.tmp.bat
| MD5 | 01d79f339e472fc2bf00d69b9ea4a540 |
| SHA1 | 448af1fcbc738ed7e4a5695d8c1f3c5f7dd4fcc2 |
| SHA256 | 9b4161122eea5a519725c68b6836ea2365716193002ad5cde3dd7e2f93e87d71 |
| SHA512 | 8f2d2391de97fa3f45c329be19864979228069960825bc90042bf695aebec010a24f945fb76d3871324eceb4f413dc24ea0b72e33a0dcc712d74815dea130d1e |