Analysis
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max time kernel
140s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23-10-2024 23:33
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-23_cd3237b1e648d31b8761196b6c64da8a_cobalt-strike_ryuk.exe
Resource
win7-20241010-en
General
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Target
2024-10-23_cd3237b1e648d31b8761196b6c64da8a_cobalt-strike_ryuk.exe
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Size
618KB
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MD5
cd3237b1e648d31b8761196b6c64da8a
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SHA1
2e677b7cafc3a8ee1696dddf38b176191d256559
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SHA256
ee4e23ea2bbf4c0b99adb8dffbac03dc7e9f4154c8dfba11b15c6711019a2ef7
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SHA512
d71338a7de6f1859edcbbd9ed0a32430e0561f8ae91883c62e6fbc4bc2d082ebd1d538312ef42543385c514ced0166c552fe211debf783f0deae82530045e4d7
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SSDEEP
12288:QmKt6DsU6ngc3kY+KC5gzwGKZ4cuQW8XQAL019bqoFARwpVp:QR8Y+sxYWkX019bqgWwpVp
Malware Config
Extracted
phorphiex
http://185.215.113.66/
http://91.202.233.141/
0xCa90599132C4D88907Bd8E046540284aa468a035
TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6
qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
XryzFMFVpDUvU7famUGf214EXD3xNUSmQf
rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9
AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z
LTK4xdKPAgFHPLan8kriAD7eY4heyy73mB
MP8GEm8QpYgQYaMo8oM5NQhRBgDGiLZW5Q
4BB7ckkaPTyADc8trtuwDoZxywaR4eNL5cDJ3KBjq9GraN4mUFztf7mLS7WgT7Bh7uPqpjvA4ypVwXKCJ1vvLWWAFvSmDoD
15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC
1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK
ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp
3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc
3ESHude8zUHksQg1h6hHmzY79BS36L91Yn
DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA
t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh
stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj
bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2
bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr
bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd
bitcoincash:qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
GBQJMXYXPRIWFMXIFJR35ZB7LRKMB4PHCIUAUFR3TKUL6RDBZVLZEUJ3
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mutex
mmn7nnm8na
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user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36
Signatures
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Modifies security service 2 TTPs 2 IoCs
Processes:
sysppvrdnvs.exesysppvrdnvs.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" sysppvrdnvs.exe -
Phorphiex payload 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\2304721041.exe family_phorphiex -
Suspicious use of NtCreateUserProcessOtherParentProcess 5 IoCs
Processes:
3981921714.exewinupsecvmgr.exedescription pid process target process PID 1384 created 3456 1384 3981921714.exe Explorer.EXE PID 1384 created 3456 1384 3981921714.exe Explorer.EXE PID 1868 created 3456 1868 winupsecvmgr.exe Explorer.EXE PID 1868 created 3456 1868 winupsecvmgr.exe Explorer.EXE PID 1868 created 3456 1868 winupsecvmgr.exe Explorer.EXE -
Processes:
sysppvrdnvs.exesysppvrdnvs.exedescription ioc process 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\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\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\FirewallOverride = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "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\FirewallOverride = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" sysppvrdnvs.exe -
XMRig Miner payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/1868-149-0x00007FF74DF00000-0x00007FF74E497000-memory.dmp xmrig behavioral2/memory/4904-159-0x00007FF7CA7F0000-0x00007FF7CAFDF000-memory.dmp xmrig -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 4076 powershell.exe 2768 powershell.exe 2704 powershell.exe 5024 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.
Processes:
sysppvrdnvs.exe2344813298.exesysppvrdnvs.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation sysppvrdnvs.exe Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 2344813298.exe Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation sysppvrdnvs.exe -
Executes dropped EXE 11 IoCs
Processes:
88C7.exe2304721041.exesysppvrdnvs.exe2344813298.exe53644408.exe906928491.exe3981921714.exe2636619552.exewinupsecvmgr.exe2771415602.exesysppvrdnvs.exepid process 3244 88C7.exe 2548 2304721041.exe 1944 sysppvrdnvs.exe 800 2344813298.exe 4936 53644408.exe 3884 906928491.exe 1384 3981921714.exe 4656 2636619552.exe 1868 winupsecvmgr.exe 4668 2771415602.exe 4576 sysppvrdnvs.exe -
Processes:
sysppvrdnvs.exesysppvrdnvs.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\UpdatesOverride = "1" sysppvrdnvs.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "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 Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "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\FirewallOverride = "1" sysppvrdnvs.exe 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 -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
2304721041.exe2771415602.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\sysppvrdnvs.exe" 2304721041.exe Set value (str) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Users\\Admin\\sysppvrdnvs.exe" 2771415602.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
winupsecvmgr.exedescription pid process target process PID 1868 set thread context of 844 1868 winupsecvmgr.exe conhost.exe PID 1868 set thread context of 4904 1868 winupsecvmgr.exe dwm.exe -
Drops file in Windows directory 3 IoCs
Processes:
2304721041.exe2771415602.exedescription ioc process File created C:\Windows\sysppvrdnvs.exe 2304721041.exe File opened for modification C:\Windows\sysppvrdnvs.exe 2304721041.exe File created C:\Windows\sysppvrdnvs.exe 2771415602.exe -
Launches sc.exe 10 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exesc.exesc.exesc.exesc.exesc.exesc.exesc.exesc.exesc.exepid process 1040 sc.exe 2696 sc.exe 396 sc.exe 348 sc.exe 960 sc.exe 1768 sc.exe 3928 sc.exe 3884 sc.exe 2692 sc.exe 2064 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 20 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
88C7.exesysppvrdnvs.exesc.exe906928491.exe2636619552.exe2771415602.exepowershell.exesc.exesc.exe53644408.exesysppvrdnvs.exesc.exe2304721041.execmd.exesc.execmd.exepowershell.execmd.exesc.execmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 88C7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sysppvrdnvs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 906928491.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2636619552.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2771415602.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 sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 53644408.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sysppvrdnvs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2304721041.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 cmd.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 sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious behavior: EnumeratesProcesses 17 IoCs
Processes:
powershell.exe2344813298.exe3981921714.exepowershell.exewinupsecvmgr.exepowershell.exepid process 2704 powershell.exe 2704 powershell.exe 800 2344813298.exe 1384 3981921714.exe 1384 3981921714.exe 4076 powershell.exe 4076 powershell.exe 1384 3981921714.exe 1384 3981921714.exe 1868 winupsecvmgr.exe 1868 winupsecvmgr.exe 2768 powershell.exe 2768 powershell.exe 1868 winupsecvmgr.exe 1868 winupsecvmgr.exe 1868 winupsecvmgr.exe 1868 winupsecvmgr.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
powershell.exe2344813298.exepowershell.exedescription pid process Token: SeDebugPrivilege 2704 powershell.exe Token: SeDebugPrivilege 800 2344813298.exe Token: SeDebugPrivilege 4076 powershell.exe Token: SeIncreaseQuotaPrivilege 4076 powershell.exe Token: SeSecurityPrivilege 4076 powershell.exe Token: SeTakeOwnershipPrivilege 4076 powershell.exe Token: SeLoadDriverPrivilege 4076 powershell.exe Token: SeSystemProfilePrivilege 4076 powershell.exe Token: SeSystemtimePrivilege 4076 powershell.exe Token: SeProfSingleProcessPrivilege 4076 powershell.exe Token: SeIncBasePriorityPrivilege 4076 powershell.exe Token: SeCreatePagefilePrivilege 4076 powershell.exe Token: SeBackupPrivilege 4076 powershell.exe Token: SeRestorePrivilege 4076 powershell.exe Token: SeShutdownPrivilege 4076 powershell.exe Token: SeDebugPrivilege 4076 powershell.exe Token: SeSystemEnvironmentPrivilege 4076 powershell.exe Token: SeRemoteShutdownPrivilege 4076 powershell.exe Token: SeUndockPrivilege 4076 powershell.exe Token: SeManageVolumePrivilege 4076 powershell.exe Token: 33 4076 powershell.exe Token: 34 4076 powershell.exe Token: 35 4076 powershell.exe Token: 36 4076 powershell.exe Token: SeIncreaseQuotaPrivilege 4076 powershell.exe Token: SeSecurityPrivilege 4076 powershell.exe Token: SeTakeOwnershipPrivilege 4076 powershell.exe Token: SeLoadDriverPrivilege 4076 powershell.exe Token: SeSystemProfilePrivilege 4076 powershell.exe Token: SeSystemtimePrivilege 4076 powershell.exe Token: SeProfSingleProcessPrivilege 4076 powershell.exe Token: SeIncBasePriorityPrivilege 4076 powershell.exe Token: SeCreatePagefilePrivilege 4076 powershell.exe Token: SeBackupPrivilege 4076 powershell.exe Token: SeRestorePrivilege 4076 powershell.exe Token: SeShutdownPrivilege 4076 powershell.exe Token: SeDebugPrivilege 4076 powershell.exe Token: SeSystemEnvironmentPrivilege 4076 powershell.exe Token: SeRemoteShutdownPrivilege 4076 powershell.exe Token: SeUndockPrivilege 4076 powershell.exe Token: SeManageVolumePrivilege 4076 powershell.exe Token: 33 4076 powershell.exe Token: 34 4076 powershell.exe Token: 35 4076 powershell.exe Token: 36 4076 powershell.exe Token: SeIncreaseQuotaPrivilege 4076 powershell.exe Token: SeSecurityPrivilege 4076 powershell.exe Token: SeTakeOwnershipPrivilege 4076 powershell.exe Token: SeLoadDriverPrivilege 4076 powershell.exe Token: SeSystemProfilePrivilege 4076 powershell.exe Token: SeSystemtimePrivilege 4076 powershell.exe Token: SeProfSingleProcessPrivilege 4076 powershell.exe Token: SeIncBasePriorityPrivilege 4076 powershell.exe Token: SeCreatePagefilePrivilege 4076 powershell.exe Token: SeBackupPrivilege 4076 powershell.exe Token: SeRestorePrivilege 4076 powershell.exe Token: SeShutdownPrivilege 4076 powershell.exe Token: SeDebugPrivilege 4076 powershell.exe Token: SeSystemEnvironmentPrivilege 4076 powershell.exe Token: SeRemoteShutdownPrivilege 4076 powershell.exe Token: SeUndockPrivilege 4076 powershell.exe Token: SeManageVolumePrivilege 4076 powershell.exe Token: 33 4076 powershell.exe Token: 34 4076 powershell.exe -
Suspicious use of FindShellTrayWindow 10 IoCs
Processes:
dwm.exepid process 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe -
Suspicious use of SendNotifyMessage 10 IoCs
Processes:
dwm.exepid process 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe 4904 dwm.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
2024-10-23_cd3237b1e648d31b8761196b6c64da8a_cobalt-strike_ryuk.exe88C7.exe2304721041.exesysppvrdnvs.execmd.execmd.exe2344813298.execmd.execmd.exe906928491.exewinupsecvmgr.exe2771415602.exesysppvrdnvs.exedescription pid process target process PID 996 wrote to memory of 3244 996 2024-10-23_cd3237b1e648d31b8761196b6c64da8a_cobalt-strike_ryuk.exe 88C7.exe PID 996 wrote to memory of 3244 996 2024-10-23_cd3237b1e648d31b8761196b6c64da8a_cobalt-strike_ryuk.exe 88C7.exe PID 996 wrote to memory of 3244 996 2024-10-23_cd3237b1e648d31b8761196b6c64da8a_cobalt-strike_ryuk.exe 88C7.exe PID 3244 wrote to memory of 2548 3244 88C7.exe 2304721041.exe PID 3244 wrote to memory of 2548 3244 88C7.exe 2304721041.exe PID 3244 wrote to memory of 2548 3244 88C7.exe 2304721041.exe PID 2548 wrote to memory of 1944 2548 2304721041.exe sysppvrdnvs.exe PID 2548 wrote to memory of 1944 2548 2304721041.exe sysppvrdnvs.exe PID 2548 wrote to memory of 1944 2548 2304721041.exe sysppvrdnvs.exe PID 1944 wrote to memory of 4512 1944 sysppvrdnvs.exe cmd.exe PID 1944 wrote to memory of 4512 1944 sysppvrdnvs.exe cmd.exe PID 1944 wrote to memory of 4512 1944 sysppvrdnvs.exe cmd.exe PID 1944 wrote to memory of 3260 1944 sysppvrdnvs.exe cmd.exe PID 1944 wrote to memory of 3260 1944 sysppvrdnvs.exe cmd.exe PID 1944 wrote to memory of 3260 1944 sysppvrdnvs.exe cmd.exe PID 4512 wrote to memory of 2704 4512 cmd.exe powershell.exe PID 4512 wrote to memory of 2704 4512 cmd.exe powershell.exe PID 4512 wrote to memory of 2704 4512 cmd.exe powershell.exe PID 3260 wrote to memory of 3928 3260 cmd.exe sc.exe PID 3260 wrote to memory of 3928 3260 cmd.exe sc.exe PID 3260 wrote to memory of 3928 3260 cmd.exe sc.exe PID 3260 wrote to memory of 3884 3260 cmd.exe sc.exe PID 3260 wrote to memory of 3884 3260 cmd.exe sc.exe PID 3260 wrote to memory of 3884 3260 cmd.exe sc.exe PID 3260 wrote to memory of 2692 3260 cmd.exe sc.exe PID 3260 wrote to memory of 2692 3260 cmd.exe sc.exe PID 3260 wrote to memory of 2692 3260 cmd.exe sc.exe PID 3260 wrote to memory of 1040 3260 cmd.exe sc.exe PID 3260 wrote to memory of 1040 3260 cmd.exe sc.exe PID 3260 wrote to memory of 1040 3260 cmd.exe sc.exe PID 3260 wrote to memory of 2064 3260 cmd.exe sc.exe PID 3260 wrote to memory of 2064 3260 cmd.exe sc.exe PID 3260 wrote to memory of 2064 3260 cmd.exe sc.exe PID 1944 wrote to memory of 800 1944 sysppvrdnvs.exe 2344813298.exe PID 1944 wrote to memory of 800 1944 sysppvrdnvs.exe 2344813298.exe PID 800 wrote to memory of 908 800 2344813298.exe cmd.exe PID 800 wrote to memory of 908 800 2344813298.exe cmd.exe PID 800 wrote to memory of 4784 800 2344813298.exe cmd.exe PID 800 wrote to memory of 4784 800 2344813298.exe cmd.exe PID 908 wrote to memory of 2052 908 cmd.exe reg.exe PID 908 wrote to memory of 2052 908 cmd.exe reg.exe PID 4784 wrote to memory of 3696 4784 cmd.exe schtasks.exe PID 4784 wrote to memory of 3696 4784 cmd.exe schtasks.exe PID 1944 wrote to memory of 4936 1944 sysppvrdnvs.exe 53644408.exe PID 1944 wrote to memory of 4936 1944 sysppvrdnvs.exe 53644408.exe PID 1944 wrote to memory of 4936 1944 sysppvrdnvs.exe 53644408.exe PID 1944 wrote to memory of 3884 1944 sysppvrdnvs.exe 906928491.exe PID 1944 wrote to memory of 3884 1944 sysppvrdnvs.exe 906928491.exe PID 1944 wrote to memory of 3884 1944 sysppvrdnvs.exe 906928491.exe PID 3884 wrote to memory of 1384 3884 906928491.exe 3981921714.exe PID 3884 wrote to memory of 1384 3884 906928491.exe 3981921714.exe PID 1944 wrote to memory of 4656 1944 sysppvrdnvs.exe 2636619552.exe PID 1944 wrote to memory of 4656 1944 sysppvrdnvs.exe 2636619552.exe PID 1944 wrote to memory of 4656 1944 sysppvrdnvs.exe 2636619552.exe PID 1868 wrote to memory of 844 1868 winupsecvmgr.exe conhost.exe PID 1868 wrote to memory of 4904 1868 winupsecvmgr.exe dwm.exe PID 1944 wrote to memory of 4668 1944 sysppvrdnvs.exe 2771415602.exe PID 1944 wrote to memory of 4668 1944 sysppvrdnvs.exe 2771415602.exe PID 1944 wrote to memory of 4668 1944 sysppvrdnvs.exe 2771415602.exe PID 4668 wrote to memory of 4576 4668 2771415602.exe sysppvrdnvs.exe PID 4668 wrote to memory of 4576 4668 2771415602.exe sysppvrdnvs.exe PID 4668 wrote to memory of 4576 4668 2771415602.exe sysppvrdnvs.exe PID 4576 wrote to memory of 3244 4576 sysppvrdnvs.exe cmd.exe PID 4576 wrote to memory of 3244 4576 sysppvrdnvs.exe cmd.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:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3456
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C:\Users\Admin\AppData\Local\Temp\2024-10-23_cd3237b1e648d31b8761196b6c64da8a_cobalt-strike_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-23_cd3237b1e648d31b8761196b6c64da8a_cobalt-strike_ryuk.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:996 -
C:\Users\Admin\AppData\Local\Temp\88C7.exe"C:\Users\Admin\AppData\Local\Temp\88C7.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3244 -
C:\Users\Admin\AppData\Local\Temp\2304721041.exeC:\Users\Admin\AppData\Local\Temp\2304721041.exe4⤵
- 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:2548 -
C:\Windows\sysppvrdnvs.exeC:\Windows\sysppvrdnvs.exe5⤵
- 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:1944 -
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"6⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4512 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"7⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2704
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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 /wait6⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3260 -
C:\Windows\SysWOW64\sc.exesc stop UsoSvc7⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3928
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C:\Windows\SysWOW64\sc.exesc stop WaaSMedicSvc7⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3884
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C:\Windows\SysWOW64\sc.exesc stop wuauserv7⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2692
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C:\Windows\SysWOW64\sc.exesc stop DoSvc7⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:1040
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C:\Windows\SysWOW64\sc.exesc stop BITS /wait7⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2064
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C:\Users\Admin\AppData\Local\Temp\2344813298.exeC:\Users\Admin\AppData\Local\Temp\2344813298.exe6⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:800 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f7⤵
- Suspicious use of WriteProcessMemory
PID:908 -
C:\Windows\system32\reg.exereg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f8⤵PID:2052
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Windows Upgrade Manager"7⤵
- Suspicious use of WriteProcessMemory
PID:4784 -
C:\Windows\system32\schtasks.exeschtasks /delete /f /tn "Windows Upgrade Manager"8⤵PID:3696
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C:\Users\Admin\AppData\Local\Temp\53644408.exeC:\Users\Admin\AppData\Local\Temp\53644408.exe6⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4936
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C:\Users\Admin\AppData\Local\Temp\906928491.exeC:\Users\Admin\AppData\Local\Temp\906928491.exe6⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3884 -
C:\Users\Admin\AppData\Local\Temp\3981921714.exeC:\Users\Admin\AppData\Local\Temp\3981921714.exe7⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1384
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C:\Users\Admin\AppData\Local\Temp\2636619552.exeC:\Users\Admin\AppData\Local\Temp\2636619552.exe6⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4656
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C:\Users\Admin\AppData\Local\Temp\2771415602.exeC:\Users\Admin\AppData\Local\Temp\2771415602.exe6⤵
- 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:4668 -
C:\Users\Admin\sysppvrdnvs.exeC:\Users\Admin\sysppvrdnvs.exe7⤵
- 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:4576 -
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"8⤵
- System Location Discovery: System Language Discovery
PID:3244 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"9⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
PID:5024
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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 /wait8⤵
- System Location Discovery: System Language Discovery
PID:2164 -
C:\Windows\SysWOW64\sc.exesc stop UsoSvc9⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:348
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C:\Windows\SysWOW64\sc.exesc stop WaaSMedicSvc9⤵
- Launches sc.exe
PID:2696
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C:\Windows\SysWOW64\sc.exesc stop wuauserv9⤵
- Launches sc.exe
PID:396
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C:\Windows\SysWOW64\sc.exesc stop DoSvc9⤵
- Launches sc.exe
PID:960
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C:\Windows\SysWOW64\sc.exesc stop BITS /wait9⤵
- Launches sc.exe
PID:1768
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#evrkcgqew#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Microsoft Windows Security' /tr '''C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Microsoft Windows Security' -RunLevel 'Highest' -Force; }2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4076
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C:\Windows\System32\schtasks.exeC:\Windows\System32\schtasks.exe /run /tn "Microsoft Windows Security"2⤵PID:1004
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#evrkcgqew#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Microsoft Windows Security' /tr '''C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Microsoft Windows Security' -RunLevel 'Highest' -Force; }2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
PID:2768
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C:\Windows\System32\conhost.exeC:\Windows\System32\conhost.exe2⤵PID:844
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C:\Windows\System32\dwm.exeC:\Windows\System32\dwm.exe2⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4904
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C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe"C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe"1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1868
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
3KB
MD5d3ade909743ca7766535172e0191bddf
SHA150b6e5bcd795505765305979b7f7613af958f68c
SHA256e825369a33de0e39bde1a95b2b50d7cd42410d7678945c8479691209a5cf77e2
SHA512256b15f20f118161df8211542277eadd538c13977c21b8204eb2062a17578687fe531dcc3c65cd923b251ea023bb1177ef3d6052626d01605c4af3f9f978fca8
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
108KB
MD51fcb78fb6cf9720e9d9494c42142d885
SHA1fef9c2e728ab9d56ce9ed28934b3182b6f1d5379
SHA25684652bb8c63ca4fd7eb7a2d6ef44029801f3057aa2961867245a3a765928dd02
SHA512cdf58e463af1784aea86995b3e5d6b07701c5c4095e30ec80cc901ffd448c6f4f714c521bf8796ffa8c47538bf8bf5351e157596efaa7ab88155d63dc33f7dc3
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Filesize
18KB
MD540c0ba62ef66637dfabe1564986a4d98
SHA1492d54662f190650dbafc19c3ed2f8f9d11e124b
SHA2561f2693df9587b2dbf70afd62f5600cece199a5dd02914aa6b5487766214943d7
SHA512f27a4d4d48679b95c2d081eb4a8f8f5b4e219f9511660505f458f36acbbe0324e8a1898ca56c8e7c61242811bfae8390a2976dc2a29c69e24a90a00ccb2c726d
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Filesize
1KB
MD536a8889ff5aeff26369d80e2b24f2a9a
SHA13bb674df970b4ed386ccce2c1b1a0e2ebbca6c8e
SHA2567de9d5dbdbb5c9c3c16497fde4ae73c4ddae9e0f1c655e16a4dfd17e787d383d
SHA51248b0f0691710a0f54621f82d5f579c1621b172eaa82e496a858c148d2b4a1cdd2d4317b66858800fada98f7584e697f6d8e8c971019b00986c33a9278cfbdf57
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Filesize
1KB
MD55832a2075706361e65488cf135de9a19
SHA1b4c950f8766b8fd4f7e576023c02f9880bbe5e57
SHA2567a61a7252e1b20f727e98de38eba6795c8c512ac8c071ebac4efa3d1508d4728
SHA5126d4313fdd42ca13b59112c329e4413bb4fc4ae7496af658a09277fe3d4c3acb28da82c4188b7640450ac7ad931e9c3f0aece8ea6d529b82e0f9ded5d48f2874f
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Filesize
83KB
MD506560b5e92d704395bc6dae58bc7e794
SHA1fbd3e4ae28620197d1f02bfc24adaf4ddacd2372
SHA2569eaaadf3857e4a3e83f4f78d96ab185213b6528c8e470807f9d16035daadf33d
SHA512b55b49fc1bd526c47d88fcf8a20fcaed900bfb291f2e3e1186ec196a87127ed24df71385ae04fedcc802c362c4ebf38edfc182013febf4496ddeb66ce5195ee3
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Filesize
8KB
MD5cb8420e681f68db1bad5ed24e7b22114
SHA1416fc65d538d3622f5ca71c667a11df88a927c31
SHA2565850892f67f85991b31fc90f62c8b7791afeb3c08ae1877d857aa2b59471a2ea
SHA512baaabcc4ad5d409267a34ed7b20e4afb4d247974bfc581d39aae945e5bf8a673a1f8eacae2e6783480c8baaeb0a80d028274a202d456f13d0af956afa0110fdf
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Filesize
13KB
MD55a0d146f7a911e98da8cc3c6de8acabf
SHA14ec56b14a08c897a5e9e85f5545b6c976a0be3c1
SHA256bf61e77b7c49ce3346a28d8bc084c210618ea6ec5f3cfa9ae8f4aa4d64e145f1
SHA5126d1526a5f467535d51b7f9b3a7af2d54512526e2523e3048082277b83b6e1a1f0d7e3c617405898f240ae84a16163bc47886d8541a016b31c51dfadf9da713e1
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Filesize
5.6MB
MD513b26b2c7048a92d6a843c1302618fad
SHA189c2dfc01ac12ef2704c7669844ec69f1700c1ca
SHA2561753ad35ece25ab9a19048c70062e9170f495e313d7355ebbba59c38f5d90256
SHA512d6aff89b61c9945002a6798617ad304612460a607ef1cfbdcb32f8932ca648bcee1d5f2e0321bb4c58c1f4642b1e0ececc1eb82450fdec7dff69b5389f195455
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Filesize
15KB
MD50c37ee292fec32dba0420e6c94224e28
SHA1012cbdddaddab319a4b3ae2968b42950e929c46b
SHA256981d724feebc36777e99513dc061d1f009e589f965c920797285c46d863060d1
SHA5122b60b571c55d0441ba0cfc695f9db5cd12660ebec7effc7e893c3b7a1c6cb6149df487c31b8d748697e260cbc4af29331592b705ea9638f64a711c7a6164628b
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Filesize
9KB
MD58d8e6c7952a9dc7c0c73911c4dbc5518
SHA19098da03b33b2c822065b49d5220359c275d5e94
SHA256feb4c3ae4566f0acbb9e0f55417b61fefd89dc50a4e684df780813fb01d61278
SHA51291a573843c28dd32a9f31a60ba977f9a3d4bb19ffd1b7254333e09bcecef348c1b3220a348ebb2cb08edb57d56cb7737f026519da52199c9dc62c10aea236645
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Filesize
10KB
MD596509ab828867d81c1693b614b22f41d
SHA1c5f82005dbda43cedd86708cc5fc3635a781a67e
SHA256a9de2927b0ec45cf900508fec18531c04ee9fa8a5dfe2fc82c67d9458cf4b744
SHA512ff603117a06da8fb2386c1d2049a5896774e41f34d05951ecd4e7b5fc9da51a373e3fcf61af3577ff78490cf898471ce8e71eae848a12812fe98cd7e76e1a9ca
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82