Analysis Overview
SHA256
26a4b648d7469d84b65452fcc161a7909878df2685910d80085dbb9a69c2cd27
Threat Level: Known bad
The file 26a4b648d7469d84b65452fcc161a7909878df2685910d80085dbb9a69c2cd27.zip was found to be: Known bad.
Malicious Activity Summary
Orcus main payload
Modifies Windows Defender Real-time Protection settings
UAC bypass
Contains code to disable Windows Defender
Orcurs Rat Executable
Orcus family
Orcus
Orcurs Rat Executable
Loads dropped DLL
Windows security modification
Executes dropped EXE
Legitimate hosting services abused for malware hosting/C2
Adds Run key to start application
Checks whether UAC is enabled
Drops file in System32 directory
Drops file in Program Files directory
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
System policy modification
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-01 19:44
Signatures
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Orcus family
Orcus main payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-01 19:44
Reported
2024-01-01 19:47
Platform
win7-20231215-en
Max time kernel
173s
Max time network
187s
Command Line
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Modifies Windows Defender Real-time Protection settings
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
Orcus
Orcus main payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "1" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "1" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
Orcurs Rat Executable
| 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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Windows Defender.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Windows Defender.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\svUpdate = "\"C:\\Program Files (x86)\\Win32\\UpdateSystem32.exe\"" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "1" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "1" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\WindowsInput.exe | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.exe.config | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.InstallState | C:\Windows\SysWOW64\WindowsInput.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Win32\UpdateSystem32.exe | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Win32\UpdateSystem32.exe | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| File created | C:\Program Files (x86)\Win32\UpdateSystem32.exe.config | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Windows Defender.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Windows Defender.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "1" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableVirtualization = "0" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableSecureUIAPaths = "0" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableUIADesktopToggle = "0" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\FilterAdministratorToken = "0" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableUIADesktopToggle = "0" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "1" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableVirtualization = "0" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\FilterAdministratorToken = "0" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableInstallerDetection = "0" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableSecureUIAPaths = "0" | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableInstallerDetection = "0" | C:\Program Files (x86)\Win32\UpdateSystem32.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe
"C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe"
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe" --install
C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Get-MpPreference -verbose
C:\Program Files (x86)\Win32\UpdateSystem32.exe
"C:\Program Files (x86)\Win32\UpdateSystem32.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {1874247F-E6C8-4400-AECB-B27F8A46057A} S-1-5-21-3308111660-3636268597-2291490419-1000:JUBFGPHD\Admin:Interactive:[1]
C:\Program Files (x86)\Win32\UpdateSystem32.exe
"C:\Program Files (x86)\Win32\UpdateSystem32.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Get-MpPreference -verbose
C:\Users\Admin\AppData\Roaming\Windows Defender.exe
"C:\Users\Admin\AppData\Roaming\Windows Defender.exe" /launchSelfAndExit "C:\Program Files (x86)\Win32\UpdateSystem32.exe" 1272 /protectFile
C:\Users\Admin\AppData\Roaming\Windows Defender.exe
"C:\Users\Admin\AppData\Roaming\Windows Defender.exe" /watchProcess "C:\Program Files (x86)\Win32\UpdateSystem32.exe" 1272 "/protectFile"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 5.tcp.eu.ngrok.io | udp |
| DE | 18.158.58.205:11720 | 5.tcp.eu.ngrok.io | tcp |
| DE | 18.158.58.205:11720 | 5.tcp.eu.ngrok.io | tcp |
| DE | 18.158.58.205:11720 | 5.tcp.eu.ngrok.io | tcp |
| DE | 18.158.58.205:11720 | 5.tcp.eu.ngrok.io | tcp |
| DE | 18.158.58.205:11720 | 5.tcp.eu.ngrok.io | tcp |
| DE | 18.158.58.205:11720 | 5.tcp.eu.ngrok.io | tcp |
| US | 8.8.8.8:53 | 5.tcp.eu.ngrok.io | udp |
| DE | 3.67.62.142:11720 | 5.tcp.eu.ngrok.io | tcp |
Files
memory/1988-0-0x0000000000AB0000-0x0000000000BA0000-memory.dmp
memory/1988-1-0x0000000073EC0000-0x00000000745AE000-memory.dmp
memory/1988-2-0x0000000004920000-0x0000000004960000-memory.dmp
memory/1988-3-0x00000000003B0000-0x00000000003BE000-memory.dmp
memory/1988-4-0x0000000002150000-0x00000000021AC000-memory.dmp
memory/1988-5-0x00000000005F0000-0x0000000000602000-memory.dmp
memory/1988-6-0x0000000000650000-0x0000000000658000-memory.dmp
memory/1988-7-0x0000000000660000-0x000000000066A000-memory.dmp
memory/1988-8-0x0000000000670000-0x0000000000678000-memory.dmp
memory/1988-9-0x0000000000680000-0x0000000000688000-memory.dmp
memory/1988-10-0x0000000000A30000-0x0000000000A38000-memory.dmp
C:\Windows\SysWOW64\WindowsInput.exe
| MD5 | e6fcf516d8ed8d0d4427f86e08d0d435 |
| SHA1 | c7691731583ab7890086635cb7f3e4c22ca5e409 |
| SHA256 | 8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337 |
| SHA512 | c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e |
C:\Windows\SysWOW64\WindowsInput.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
memory/2676-20-0x0000000000310000-0x000000000031C000-memory.dmp
memory/2676-21-0x000007FEF4E60000-0x000007FEF584C000-memory.dmp
memory/2676-22-0x000000001B310000-0x000000001B390000-memory.dmp
memory/1988-23-0x0000000073EC0000-0x00000000745AE000-memory.dmp
memory/1988-24-0x0000000004920000-0x0000000004960000-memory.dmp
memory/2676-26-0x000007FEF4E60000-0x000007FEF584C000-memory.dmp
memory/2588-27-0x000007FEF4E60000-0x000007FEF584C000-memory.dmp
memory/2676-28-0x000000001B310000-0x000000001B390000-memory.dmp
memory/2588-29-0x0000000019B90000-0x0000000019C10000-memory.dmp
memory/2588-34-0x000007FEF4E60000-0x000007FEF584C000-memory.dmp
memory/2676-37-0x000007FEF4E60000-0x000007FEF584C000-memory.dmp
memory/2528-40-0x000000006D180000-0x000000006D72B000-memory.dmp
memory/2528-41-0x00000000025E0000-0x0000000002620000-memory.dmp
memory/2528-42-0x000000006D180000-0x000000006D72B000-memory.dmp
memory/2528-43-0x00000000025E0000-0x0000000002620000-memory.dmp
memory/2528-44-0x000000006D180000-0x000000006D72B000-memory.dmp
C:\Program Files (x86)\Win32\UpdateSystem32.exe
| MD5 | 0ae9037ccf0ec15a0f1c15a53ee2a2c5 |
| SHA1 | 2a682b2357329d786e1b0f0f2f8c30aa9f984444 |
| SHA256 | 936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558 |
| SHA512 | ceaeea58565bb8151ce39b43e4f1c74a8f0bbfa84b62b9211d8713b7291212dc475b627918b0eb1f294a776da767f5e35071a014a3a3e8c6d1a78a5f112db29d |
memory/1272-53-0x00000000012E0000-0x00000000013D0000-memory.dmp
memory/1272-55-0x0000000073EC0000-0x00000000745AE000-memory.dmp
memory/1272-56-0x0000000004B10000-0x0000000004B50000-memory.dmp
memory/1988-54-0x0000000073EC0000-0x00000000745AE000-memory.dmp
memory/1272-57-0x0000000000880000-0x0000000000892000-memory.dmp
C:\Users\Admin\AppData\Roaming\Orcus\err_5f51b4303bf4453eb591ad936578c144.dat
| MD5 | 1fadba38d583f42566ed6477da0a0480 |
| SHA1 | e39c3d014a3b5ae07d36a6e6a41f4f484688dc84 |
| SHA256 | 904fea26bb0a084f05b7ee19e2645633d89122651109a4ac02bdaad668b7cfd7 |
| SHA512 | 266c8dc485dc7269f5cba05d53409b974f88cd321e76905d980396d2d2584d42dd6742f29184690feb27effcb15bc30ba26811fcc8bddb7ec08f2fe11159d3b9 |
memory/1272-60-0x0000000000E00000-0x0000000000E4E000-memory.dmp
memory/1272-61-0x00000000048D0000-0x00000000048E8000-memory.dmp
memory/1272-62-0x0000000004AE0000-0x0000000004AF0000-memory.dmp
memory/1272-64-0x0000000073EC0000-0x00000000745AE000-memory.dmp
memory/2428-65-0x0000000073EC0000-0x00000000745AE000-memory.dmp
memory/1272-66-0x0000000004B10000-0x0000000004B50000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
| MD5 | 2e8781ee62cfe05ab2f56874eb8dcdcc |
| SHA1 | 54a0f43ca537c7e162f00375b7070da65a22f1c3 |
| SHA256 | 8f6de0dc91db002517831ce7c45080806016a31985549b3e52bc1f4c6698d37d |
| SHA512 | e96a22113dc47b9c644bc925a9378c29c66ea229b48eec8a82af91cc97f7969c89c996819936b50844cb4c767b3368a4db72d751616fac1f6f1ef12f5296dbec |
memory/1868-73-0x00000000024E0000-0x0000000002520000-memory.dmp
memory/1868-72-0x000000006BE50000-0x000000006C3FB000-memory.dmp
memory/1868-74-0x000000006BE50000-0x000000006C3FB000-memory.dmp
memory/1868-75-0x000000006BE50000-0x000000006C3FB000-memory.dmp
\Users\Admin\AppData\Roaming\Windows Defender.exe
| MD5 | 913967b216326e36a08010fb70f9dba3 |
| SHA1 | 7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf |
| SHA256 | 8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a |
| SHA512 | c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33 |
memory/1996-87-0x0000000073EC0000-0x00000000745AE000-memory.dmp
memory/3068-89-0x0000000073EC0000-0x00000000745AE000-memory.dmp
memory/1996-86-0x00000000010A0000-0x00000000010A8000-memory.dmp
memory/2428-90-0x0000000073EC0000-0x00000000745AE000-memory.dmp
memory/1996-91-0x0000000073EC0000-0x00000000745AE000-memory.dmp
memory/3068-92-0x0000000073EC0000-0x00000000745AE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-01 19:44
Reported
2024-01-01 19:47
Platform
win10v2004-20231215-en
Max time kernel
162s
Max time network
171s
Command Line
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Orcus
Orcurs Rat Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\WindowsInput.exe | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
| File created | C:\Windows\SysWOW64\WindowsInput.exe.config | C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe | N/A |
Enumerates physical storage devices
Processes
C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe
"C:\Users\Admin\AppData\Local\Temp\CortexClient\CortexClient Privat.exe"
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 2.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 195.233.44.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.160.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 49.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 137.71.105.51.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 | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
Files
memory/1040-0-0x0000000074990000-0x0000000075140000-memory.dmp
memory/1040-1-0x00000000001C0000-0x00000000002B0000-memory.dmp
memory/1040-2-0x0000000074990000-0x0000000075140000-memory.dmp
memory/1040-3-0x0000000004BD0000-0x0000000004BE0000-memory.dmp
memory/1040-4-0x0000000004BC0000-0x0000000004BCE000-memory.dmp
memory/1040-5-0x0000000004C60000-0x0000000004CBC000-memory.dmp
memory/1040-6-0x00000000054B0000-0x0000000005A54000-memory.dmp
memory/1040-7-0x0000000005000000-0x0000000005092000-memory.dmp
memory/1040-8-0x0000000004BD0000-0x0000000004BE0000-memory.dmp
memory/1040-9-0x00000000003A0000-0x00000000003B2000-memory.dmp
memory/1040-10-0x0000000004F70000-0x0000000004F78000-memory.dmp
memory/1040-11-0x0000000004F80000-0x0000000004F8A000-memory.dmp
memory/1040-12-0x0000000004F90000-0x0000000004F98000-memory.dmp
memory/1040-13-0x0000000004FA0000-0x0000000004FA8000-memory.dmp
memory/1040-14-0x0000000004FB0000-0x0000000004FB8000-memory.dmp
memory/1040-15-0x0000000005110000-0x0000000005176000-memory.dmp
memory/1040-16-0x0000000006080000-0x0000000006698000-memory.dmp
memory/1040-17-0x0000000000C90000-0x0000000000CA2000-memory.dmp
memory/1040-18-0x00000000050A0000-0x00000000050DC000-memory.dmp
memory/1040-19-0x0000000000CB0000-0x0000000000CFC000-memory.dmp
memory/1040-20-0x0000000005290000-0x000000000539A000-memory.dmp
memory/1040-22-0x0000000005E50000-0x0000000005E72000-memory.dmp