Analysis
- max time kernel
148s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
01/10/2022, 18:58
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe
Resource
win7-20220901-en
windows7-x64
20 signatures
150 seconds
General
- Target cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe
- Size 270KB
- Sample221001-xms99acdfq
- SHA256 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451
- MD5 72a5fd774abbbcbdc38527826122b580
- SHA1 08da270a2c68a7b113aaaee8b2cbffb7665163c9
- SHA512 51abac0551b7e97c9691b0a2f821d22a258022c25dcc7c1c7bd6e873e658ea3bf7affdae06d8b6929e2473600c55abbc7a1b1decdd17b76e376b9c54eca6218f
- SSDEEP 6144:LAsBZPuFKtb1svWp8uAUf2lNbhu1ZHqsM7hQzZT8PjUs:tUOb1svWpaUfgNbhu1csqu3s
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Modifies firewall policy service 2 TTPs 4 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\EnableFirewall = "0" explorer.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile explorer.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" explorer.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile explorer.exe - Sets file execution options in registry 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe\Debugger = "vzqhrgtrgm.exe" explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\a1y75uiq5.exe cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\a1y75uiq5.exe\DisableExceptionChainValidation cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe - Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.exe - Loads dropped DLL 2 IoCs
pid Process 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Windows Search 5.3.10 = "C:\\ProgramData\\Windows Search 5.3.10\\a1y75uiq5.exe" explorer.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Search 5.3.10 = "\"C:\\ProgramData\\Windows Search 5.3.10\\a1y75uiq5.exe\"" explorer.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
pid Process 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 4504 explorer.exe 4504 explorer.exe 4504 explorer.exe 4504 explorer.exe 4504 explorer.exe 4504 explorer.exe 4504 explorer.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5056 set thread context of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
pid pid_target Process procid_target 2968 4504 WerFault.exe 91 - Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString explorer.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 explorer.exe - Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer explorer.exe - Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" explorer.exe - Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" explorer.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main explorer.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4504 explorer.exe 4504 explorer.exe 4504 explorer.exe 4504 explorer.exe - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe - Suspicious use of AdjustPrivilegeToken 28 IoCs
description pid Process Token: SeDebugPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeRestorePrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeBackupPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeLoadDriverPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeCreatePagefilePrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeShutdownPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeTakeOwnershipPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeChangeNotifyPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeCreateTokenPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeMachineAccountPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeSecurityPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeAssignPrimaryTokenPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeCreateGlobalPrivilege 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: 33 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe Token: SeDebugPrivilege 4504 explorer.exe Token: SeRestorePrivilege 4504 explorer.exe Token: SeBackupPrivilege 4504 explorer.exe Token: SeLoadDriverPrivilege 4504 explorer.exe Token: SeCreatePagefilePrivilege 4504 explorer.exe Token: SeShutdownPrivilege 4504 explorer.exe Token: SeTakeOwnershipPrivilege 4504 explorer.exe Token: SeChangeNotifyPrivilege 4504 explorer.exe Token: SeCreateTokenPrivilege 4504 explorer.exe Token: SeMachineAccountPrivilege 4504 explorer.exe Token: SeSecurityPrivilege 4504 explorer.exe Token: SeAssignPrimaryTokenPrivilege 4504 explorer.exe Token: SeCreateGlobalPrivilege 4504 explorer.exe Token: 33 4504 explorer.exe - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 5056 wrote to memory of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 PID 5056 wrote to memory of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 PID 5056 wrote to memory of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 PID 5056 wrote to memory of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 PID 5056 wrote to memory of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 PID 5056 wrote to memory of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 PID 5056 wrote to memory of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 PID 5056 wrote to memory of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 PID 5056 wrote to memory of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 PID 5056 wrote to memory of 744 5056 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 87 PID 744 wrote to memory of 4504 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 91 PID 744 wrote to memory of 4504 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 91 PID 744 wrote to memory of 4504 744 cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe"C:\Users\Admin\AppData\Local\Temp\cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5056 -
C:\Users\Admin\AppData\Local\Temp\cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe"C:\Users\Admin\AppData\Local\Temp\cccb98520d7b5747bbec8af8fcc1d245eaccea92a346c30309c3333519933451.exe"2⤵
- Sets file execution options in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:744 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Modifies firewall policy service
- Sets file execution options in registry
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Enumerates system info in registry
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4504 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 11204⤵
- Program crash
PID:2968
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4504 -ip 45041⤵PID:1420
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\nseB86A.tmp\System.dll
- Size 11KB
- SHA256 44e5dfd551b38e886214bd6b9c8ee913c4c4d1f085a6575d97c3e892b925da82
- MD5 883eff06ac96966270731e4e22817e11
- SHA1 523c87c98236cbc04430e87ec19b977595092ac8
- SHA512 60333253342476911c84bbc1d9bf8a29f811207787fdd6107dce8d2b6e031669303f28133ffc811971ed7792087fe90fb1faabc0af4e91c298ba51e28109a390
- SSDEEP 96:UPDYcJ+nx4vVp76JX7zBlkCg21Fxz4THxtrqw1at0JgwLEjo+OB3yUVCdl/wNj+l:UPtkuWJX7zB3kGwfy0nyUVsxCjOMb1u
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\rabblements.dll
- Size 74KB
- SHA256 e389ea70bde9d21be265a9adda6cdfd3aae6d59b2526df2bb18ae7c7cc4aa13a
- MD5 e0291ba7745237498e06465b622cee9d
- SHA1 f1bac955e343ea7530f63197b7c29af40ae0388a
- SHA512 87d6834e1a8c4166a0f1cdcc38908798c9a75684ea118ea4b99ee2d322c26268d0a352fa437840c1f45de0830fe2361cbc21a516ef49c88be9c3f8eb415f3dd6
- SSDEEP 768:VQWzOn8pGNaLnXU1LxAB4MKWNnKs8qInTZR8shonUBBHNEDSiKx2oqa:6q3pGNaLnXmLxXyIE0honUPb2oq
- MD5 SHA1 SHA512 SSDEEP