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Analysis
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max time kernel
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max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
16/10/2024, 23:21
Static task
static1
Behavioral task
behavioral1
Sample
ff2df00e788749ba0f2ca8c29a35030c.exe
Resource
win7-20240903-en
General
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Target
ff2df00e788749ba0f2ca8c29a35030c.exe
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Size
74KB
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MD5
ff2df00e788749ba0f2ca8c29a35030c
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SHA1
9638e9861cdd6a8b5e4aad28739ebd62ab12b6a1
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SHA256
8c8ef3881ab44057b4972c9112f73e334c664dace19295c5755f5a38ea6191d7
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SHA512
76e3323f797e557a72be2242961829f410c17be3b7d605075c0c05676d8a0fca6d108e47fb250219da010f0ad64c92f56d8db3b6f913b7c5000591434ec253db
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SSDEEP
192:H5w4ZVQffbuVBiRAljEEJxTqthTcPcPcPcPcPcPcPcPcPcPcPcPcPcPcPcPcPcPx:H5w4ZV0G06uEuOm6S6666
Malware Config
Signatures
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Modifies security service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" sysvplervcs.exe -
Phorphiex payload 1 IoCs
resource yara_rule behavioral2/files/0x0008000000023c88-4.dat family_phorphiex -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" sysvplervcs.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4828 powershell.exe -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation ff2df00e788749ba0f2ca8c29a35030c.exe Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation sysvplervcs.exe Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation 193399654.exe -
Executes dropped EXE 5 IoCs
pid Process 4732 24400.scr 4800 sysvplervcs.exe 3184 193399654.exe 3404 125433532.exe 1276 1905930911.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" sysvplervcs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" sysvplervcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\sysvplervcs.exe" 24400.scr -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\sysvplervcs.exe 24400.scr File opened for modification C:\Windows\sysvplervcs.exe 24400.scr -
Launches sc.exe 5 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4472 sc.exe 4700 sc.exe 1732 sc.exe 4032 sc.exe 1644 sc.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 13 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 sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1905930911.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ff2df00e788749ba0f2ca8c29a35030c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 24400.scr Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sysvplervcs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 125433532.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 4828 powershell.exe 4828 powershell.exe 3184 193399654.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4828 powershell.exe Token: SeDebugPrivilege 3184 193399654.exe -
Suspicious use of WriteProcessMemory 46 IoCs
description pid Process procid_target PID 1352 wrote to memory of 4732 1352 ff2df00e788749ba0f2ca8c29a35030c.exe 91 PID 1352 wrote to memory of 4732 1352 ff2df00e788749ba0f2ca8c29a35030c.exe 91 PID 1352 wrote to memory of 4732 1352 ff2df00e788749ba0f2ca8c29a35030c.exe 91 PID 4732 wrote to memory of 4800 4732 24400.scr 92 PID 4732 wrote to memory of 4800 4732 24400.scr 92 PID 4732 wrote to memory of 4800 4732 24400.scr 92 PID 4800 wrote to memory of 1116 4800 sysvplervcs.exe 94 PID 4800 wrote to memory of 1116 4800 sysvplervcs.exe 94 PID 4800 wrote to memory of 1116 4800 sysvplervcs.exe 94 PID 4800 wrote to memory of 1168 4800 sysvplervcs.exe 95 PID 4800 wrote to memory of 1168 4800 sysvplervcs.exe 95 PID 4800 wrote to memory of 1168 4800 sysvplervcs.exe 95 PID 1116 wrote to memory of 4828 1116 cmd.exe 98 PID 1116 wrote to memory of 4828 1116 cmd.exe 98 PID 1116 wrote to memory of 4828 1116 cmd.exe 98 PID 1168 wrote to memory of 1644 1168 cmd.exe 99 PID 1168 wrote to memory of 1644 1168 cmd.exe 99 PID 1168 wrote to memory of 1644 1168 cmd.exe 99 PID 1168 wrote to memory of 4472 1168 cmd.exe 100 PID 1168 wrote to memory of 4472 1168 cmd.exe 100 PID 1168 wrote to memory of 4472 1168 cmd.exe 100 PID 1168 wrote to memory of 4700 1168 cmd.exe 101 PID 1168 wrote to memory of 4700 1168 cmd.exe 101 PID 1168 wrote to memory of 4700 1168 cmd.exe 101 PID 1168 wrote to memory of 1732 1168 cmd.exe 102 PID 1168 wrote to memory of 1732 1168 cmd.exe 102 PID 1168 wrote to memory of 1732 1168 cmd.exe 102 PID 1168 wrote to memory of 4032 1168 cmd.exe 103 PID 1168 wrote to memory of 4032 1168 cmd.exe 103 PID 1168 wrote to memory of 4032 1168 cmd.exe 103 PID 4800 wrote to memory of 3184 4800 sysvplervcs.exe 118 PID 4800 wrote to memory of 3184 4800 sysvplervcs.exe 118 PID 3184 wrote to memory of 4496 3184 193399654.exe 119 PID 3184 wrote to memory of 4496 3184 193399654.exe 119 PID 3184 wrote to memory of 3304 3184 193399654.exe 121 PID 3184 wrote to memory of 3304 3184 193399654.exe 121 PID 4496 wrote to memory of 5092 4496 cmd.exe 123 PID 4496 wrote to memory of 5092 4496 cmd.exe 123 PID 3304 wrote to memory of 956 3304 cmd.exe 124 PID 3304 wrote to memory of 956 3304 cmd.exe 124 PID 4800 wrote to memory of 3404 4800 sysvplervcs.exe 125 PID 4800 wrote to memory of 3404 4800 sysvplervcs.exe 125 PID 4800 wrote to memory of 3404 4800 sysvplervcs.exe 125 PID 4800 wrote to memory of 1276 4800 sysvplervcs.exe 126 PID 4800 wrote to memory of 1276 4800 sysvplervcs.exe 126 PID 4800 wrote to memory of 1276 4800 sysvplervcs.exe 126 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\ff2df00e788749ba0f2ca8c29a35030c.exe"C:\Users\Admin\AppData\Local\Temp\ff2df00e788749ba0f2ca8c29a35030c.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1352 -
C:\Users\Admin\AppData\Local\Temp\24400.scr"C:\Users\Admin\AppData\Local\Temp\24400.scr" /S2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4732 -
C:\Windows\sysvplervcs.exeC:\Windows\sysvplervcs.exe3⤵
- Modifies security service
- Windows security bypass
- Checks computer location settings
- Executes dropped EXE
- Windows security modification
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4800 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1116 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"5⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4828
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop DoSvc & sc stop BITS /wait4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1168 -
C:\Windows\SysWOW64\sc.exesc stop UsoSvc5⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1644
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C:\Windows\SysWOW64\sc.exesc stop WaaSMedicSvc5⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4472
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C:\Windows\SysWOW64\sc.exesc stop wuauserv5⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4700
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C:\Windows\SysWOW64\sc.exesc stop DoSvc5⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1732
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C:\Windows\SysWOW64\sc.exesc stop BITS /wait5⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4032
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C:\Users\Admin\AppData\Local\Temp\193399654.exeC:\Users\Admin\AppData\Local\Temp\193399654.exe4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3184 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f5⤵
- Suspicious use of WriteProcessMemory
PID:4496 -
C:\Windows\system32\reg.exereg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f6⤵PID:5092
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Windows Upgrade Manager"5⤵
- Suspicious use of WriteProcessMemory
PID:3304 -
C:\Windows\system32\schtasks.exeschtasks /delete /f /tn "Windows Upgrade Manager"6⤵PID:956
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C:\Users\Admin\AppData\Local\Temp\125433532.exeC:\Users\Admin\AppData\Local\Temp\125433532.exe4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3404
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C:\Users\Admin\AppData\Local\Temp\1905930911.exeC:\Users\Admin\AppData\Local\Temp\1905930911.exe4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1276
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Replay Monitor
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Downloads
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Filesize
108KB
MD51fcb78fb6cf9720e9d9494c42142d885
SHA1fef9c2e728ab9d56ce9ed28934b3182b6f1d5379
SHA25684652bb8c63ca4fd7eb7a2d6ef44029801f3057aa2961867245a3a765928dd02
SHA512cdf58e463af1784aea86995b3e5d6b07701c5c4095e30ec80cc901ffd448c6f4f714c521bf8796ffa8c47538bf8bf5351e157596efaa7ab88155d63dc33f7dc3
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Filesize
15KB
MD50c37ee292fec32dba0420e6c94224e28
SHA1012cbdddaddab319a4b3ae2968b42950e929c46b
SHA256981d724feebc36777e99513dc061d1f009e589f965c920797285c46d863060d1
SHA5122b60b571c55d0441ba0cfc695f9db5cd12660ebec7effc7e893c3b7a1c6cb6149df487c31b8d748697e260cbc4af29331592b705ea9638f64a711c7a6164628b
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Filesize
10KB
MD596509ab828867d81c1693b614b22f41d
SHA1c5f82005dbda43cedd86708cc5fc3635a781a67e
SHA256a9de2927b0ec45cf900508fec18531c04ee9fa8a5dfe2fc82c67d9458cf4b744
SHA512ff603117a06da8fb2386c1d2049a5896774e41f34d05951ecd4e7b5fc9da51a373e3fcf61af3577ff78490cf898471ce8e71eae848a12812fe98cd7e76e1a9ca
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Filesize
8KB
MD5cb8420e681f68db1bad5ed24e7b22114
SHA1416fc65d538d3622f5ca71c667a11df88a927c31
SHA2565850892f67f85991b31fc90f62c8b7791afeb3c08ae1877d857aa2b59471a2ea
SHA512baaabcc4ad5d409267a34ed7b20e4afb4d247974bfc581d39aae945e5bf8a673a1f8eacae2e6783480c8baaeb0a80d028274a202d456f13d0af956afa0110fdf
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Filesize
96KB
MD5930c41bc0c20865af61a95bcf0c3b289
SHA1cecf37c3b6c76d9a79dd2a97cfc518621a6ac924
SHA2561f2e9724dfb091059ae16c305601e21d64b5308df76ddef6b394573e576ef1ff
SHA512fa1f33c71da608b3980038981220fcebee0b0cc44331e52f5198dd2761c97631ee8286756c2cc16245a1370c83bb53cc8ea8ef64e0fcdd30af51f023973986b2
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82