Analysis
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max time kernel
150s -
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
01-11-2024 10:08
Static task
static1
Behavioral task
behavioral1
Sample
6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe
Resource
win7-20241010-en
General
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Target
6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe
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Size
10KB
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MD5
ed9fbbbe548c41479cb70e4d694793d0
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SHA1
a0bde162d2241ab2acb58544511a41df30a096a7
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SHA256
6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8e
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SHA512
49652367fec13a1e7a188fd039bf8a9fae6be72fdc31e7597bbcfdf30375277f6a7e09b74bd5a2adf1696cf720998c751b7e1671afa3a59c4dfa7069bca543fb
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SSDEEP
192:Jd94uPG8E1CDSnzmgp+eMwY46BJxT43thW:394u5SCDSnJo+c83
Malware Config
Extracted
phorphiex
http://185.215.113.84
Signatures
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Modifies security service 2 TTPs 1 IoCs
Processes:
sysppvrdnvs.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" sysppvrdnvs.exe -
Phorphiex family
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Phorphiex payload 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\3028.scr family_phorphiex -
Processes:
sysppvrdnvs.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" sysppvrdnvs.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.
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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.
Processes:
864131738.exe6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exesysppvrdnvs.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 864131738.exe Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation sysppvrdnvs.exe -
Executes dropped EXE 5 IoCs
Processes:
3028.scrsysppvrdnvs.exe864131738.exe1234623054.exe3261314673.exepid process 4512 3028.scr 3512 sysppvrdnvs.exe 3832 864131738.exe 3224 1234623054.exe 4420 3261314673.exe -
Processes:
sysppvrdnvs.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" sysppvrdnvs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
3028.scrdescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\sysppvrdnvs.exe" 3028.scr -
Drops file in Windows directory 2 IoCs
Processes:
3028.scrdescription ioc process File created C:\Windows\sysppvrdnvs.exe 3028.scr File opened for modification C:\Windows\sysppvrdnvs.exe 3028.scr -
Launches sc.exe 5 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exesc.exesc.exesc.exesc.exepid process 2956 sc.exe 4012 sc.exe 2024 sc.exe 5108 sc.exe 2364 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.
Processes:
6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exesc.exesc.exesc.exe1234623054.exesc.exe3261314673.exe3028.scrsysppvrdnvs.execmd.execmd.exesc.exepowershell.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.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 sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1234623054.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3261314673.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3028.scr Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sysppvrdnvs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.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 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
powershell.exe864131738.exepid process 972 powershell.exe 972 powershell.exe 3832 864131738.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exe864131738.exedescription pid process Token: SeDebugPrivilege 972 powershell.exe Token: SeDebugPrivilege 3832 864131738.exe -
Suspicious use of WriteProcessMemory 46 IoCs
Processes:
6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe3028.scrsysppvrdnvs.execmd.execmd.exe864131738.execmd.execmd.exedescription pid process target process PID 1120 wrote to memory of 4512 1120 6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe 3028.scr PID 1120 wrote to memory of 4512 1120 6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe 3028.scr PID 1120 wrote to memory of 4512 1120 6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe 3028.scr PID 4512 wrote to memory of 3512 4512 3028.scr sysppvrdnvs.exe PID 4512 wrote to memory of 3512 4512 3028.scr sysppvrdnvs.exe PID 4512 wrote to memory of 3512 4512 3028.scr sysppvrdnvs.exe PID 3512 wrote to memory of 3276 3512 sysppvrdnvs.exe cmd.exe PID 3512 wrote to memory of 3276 3512 sysppvrdnvs.exe cmd.exe PID 3512 wrote to memory of 3276 3512 sysppvrdnvs.exe cmd.exe PID 3512 wrote to memory of 4496 3512 sysppvrdnvs.exe cmd.exe PID 3512 wrote to memory of 4496 3512 sysppvrdnvs.exe cmd.exe PID 3512 wrote to memory of 4496 3512 sysppvrdnvs.exe cmd.exe PID 3276 wrote to memory of 972 3276 cmd.exe powershell.exe PID 3276 wrote to memory of 972 3276 cmd.exe powershell.exe PID 3276 wrote to memory of 972 3276 cmd.exe powershell.exe PID 4496 wrote to memory of 2024 4496 cmd.exe sc.exe PID 4496 wrote to memory of 2024 4496 cmd.exe sc.exe PID 4496 wrote to memory of 2024 4496 cmd.exe sc.exe PID 4496 wrote to memory of 5108 4496 cmd.exe sc.exe PID 4496 wrote to memory of 5108 4496 cmd.exe sc.exe PID 4496 wrote to memory of 5108 4496 cmd.exe sc.exe PID 4496 wrote to memory of 2364 4496 cmd.exe sc.exe PID 4496 wrote to memory of 2364 4496 cmd.exe sc.exe PID 4496 wrote to memory of 2364 4496 cmd.exe sc.exe PID 4496 wrote to memory of 2956 4496 cmd.exe sc.exe PID 4496 wrote to memory of 2956 4496 cmd.exe sc.exe PID 4496 wrote to memory of 2956 4496 cmd.exe sc.exe PID 4496 wrote to memory of 4012 4496 cmd.exe sc.exe PID 4496 wrote to memory of 4012 4496 cmd.exe sc.exe PID 4496 wrote to memory of 4012 4496 cmd.exe sc.exe PID 3512 wrote to memory of 3832 3512 sysppvrdnvs.exe 864131738.exe PID 3512 wrote to memory of 3832 3512 sysppvrdnvs.exe 864131738.exe PID 3832 wrote to memory of 880 3832 864131738.exe cmd.exe PID 3832 wrote to memory of 880 3832 864131738.exe cmd.exe PID 3832 wrote to memory of 3516 3832 864131738.exe cmd.exe PID 3832 wrote to memory of 3516 3832 864131738.exe cmd.exe PID 880 wrote to memory of 4872 880 cmd.exe reg.exe PID 880 wrote to memory of 4872 880 cmd.exe reg.exe PID 3516 wrote to memory of 3132 3516 cmd.exe schtasks.exe PID 3516 wrote to memory of 3132 3516 cmd.exe schtasks.exe PID 3512 wrote to memory of 3224 3512 sysppvrdnvs.exe 1234623054.exe PID 3512 wrote to memory of 3224 3512 sysppvrdnvs.exe 1234623054.exe PID 3512 wrote to memory of 3224 3512 sysppvrdnvs.exe 1234623054.exe PID 3512 wrote to memory of 4420 3512 sysppvrdnvs.exe 3261314673.exe PID 3512 wrote to memory of 4420 3512 sysppvrdnvs.exe 3261314673.exe PID 3512 wrote to memory of 4420 3512 sysppvrdnvs.exe 3261314673.exe -
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\6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe"C:\Users\Admin\AppData\Local\Temp\6fc8b5b8a90cf8ba7e0eb930fcdde776f8eeb3f37913318df7766a365e13fa8eN.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1120 -
C:\Users\Admin\AppData\Local\Temp\3028.scr"C:\Users\Admin\AppData\Local\Temp\3028.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:4512 -
C:\Windows\sysppvrdnvs.exeC:\Windows\sysppvrdnvs.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:3512 -
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:3276 -
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:972
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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:4496 -
C:\Windows\SysWOW64\sc.exesc stop UsoSvc5⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2024
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C:\Windows\SysWOW64\sc.exesc stop WaaSMedicSvc5⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:5108
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C:\Windows\SysWOW64\sc.exesc stop wuauserv5⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2364
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C:\Windows\SysWOW64\sc.exesc stop DoSvc5⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2956
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C:\Windows\SysWOW64\sc.exesc stop BITS /wait5⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4012
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C:\Users\Admin\AppData\Local\Temp\864131738.exeC:\Users\Admin\AppData\Local\Temp\864131738.exe4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3832 -
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:880 -
C:\Windows\system32\reg.exereg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f6⤵PID:4872
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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:3516 -
C:\Windows\system32\schtasks.exeschtasks /delete /f /tn "Windows Upgrade Manager"6⤵PID:3132
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C:\Users\Admin\AppData\Local\Temp\1234623054.exeC:\Users\Admin\AppData\Local\Temp\1234623054.exe4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3224
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C:\Users\Admin\AppData\Local\Temp\3261314673.exeC:\Users\Admin\AppData\Local\Temp\3261314673.exe4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4420
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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
83KB
MD506560b5e92d704395bc6dae58bc7e794
SHA1fbd3e4ae28620197d1f02bfc24adaf4ddacd2372
SHA2569eaaadf3857e4a3e83f4f78d96ab185213b6528c8e470807f9d16035daadf33d
SHA512b55b49fc1bd526c47d88fcf8a20fcaed900bfb291f2e3e1186ec196a87127ed24df71385ae04fedcc802c362c4ebf38edfc182013febf4496ddeb66ce5195ee3
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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
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82