Analysis
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max time kernel
148s -
max time network
146s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
20-05-2021 00:31
Static task
static1
Behavioral task
behavioral1
Sample
1.exe
Resource
win7v20210410
General
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Target
1.exe
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Size
802KB
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MD5
a3a799eb1435896baea3a8e079c8dd02
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SHA1
cb0ce4c57cd8e4561a88ce20e80888d097b00900
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SHA256
55c12cb22033e12af48c4bb80b660e4ace8ed2364e7147979e30355bab7d5469
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SHA512
7cf21f437cb33fb2fe03b496309509266db8863650d175072f57b278e96a82b508651cdbc61aa08334858ffe18e251039a3c3d421d97a3749ab21ae16c89a3d9
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 4 IoCs
Processes:
explorer.exedescription 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 -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
Processes:
y59c5um9gc_1.exeo1ea9q1cu15q7.exepid Process 1072 y59c5um9gc_1.exe 668 o1ea9q1cu15q7.exe -
Sets file execution options in registry 2 TTPs
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Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
explorer.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.exe -
Loads dropped DLL 2 IoCs
Processes:
explorer.exepid Process 1828 explorer.exe 1828 explorer.exe -
Adds Run key to start application 2 TTPs 6 IoCs
Processes:
explorer.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Google Updater 2.09 = "C:\\ProgramData\\Google Updater 2.09\\y59c5um9gc.exe" explorer.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\Google Updater 2.09 = "\"C:\\ProgramData\\Google Updater 2.09\\y59c5um9gc.exe\"" explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Google Updater 2.09 = "\"C:\\ProgramData\\Google Updater 2.09\\y59c5um9gc.exe\"" explorer.exe -
Processes:
1.exedescription ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 1.exe -
Drops desktop.ini file(s) 1 IoCs
Processes:
explorer.exedescription ioc Process File opened for modification C:\ProgramData\Google Updater 2.09\desktop.ini explorer.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs
Processes:
1.exeexplorer.exepid Process 1904 1.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
1.exey59c5um9gc_1.exedescription pid Process procid_target PID 1088 set thread context of 1904 1088 1.exe 25 PID 1072 set thread context of 0 1072 y59c5um9gc_1.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
1.exeexplorer.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 1.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 1.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString explorer.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
explorer.exedescription 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
Processes:
explorer.exedescription ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" explorer.exe -
Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
Processes:
explorer.exedescription ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" explorer.exe -
Processes:
explorer.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main explorer.exe Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\VersionManager explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\VersionManager\DownloadVersionList = "0" explorer.exe -
NTFS ADS 2 IoCs
Processes:
explorer.exedescription ioc Process File opened for modification C:\Users\Admin\AppData\Local\Temp\y59c5um9gc_1.exe:14EDFC78 explorer.exe File created C:\Users\Admin\AppData\Local\Temp\y59c5um9gc_1.exe:14EDFC78 explorer.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
explorer.exepid Process 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe -
Suspicious behavior: MapViewOfSection 5 IoCs
Processes:
1.exeexplorer.exepid Process 1904 1.exe 1904 1.exe 1828 explorer.exe 1828 explorer.exe 1828 explorer.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
1.exepid Process 1904 1.exe -
Suspicious use of AdjustPrivilegeToken 28 IoCs
Processes:
1.exeexplorer.exedescription pid Process Token: SeDebugPrivilege 1904 1.exe Token: SeRestorePrivilege 1904 1.exe Token: SeBackupPrivilege 1904 1.exe Token: SeLoadDriverPrivilege 1904 1.exe Token: SeCreatePagefilePrivilege 1904 1.exe Token: SeShutdownPrivilege 1904 1.exe Token: SeTakeOwnershipPrivilege 1904 1.exe Token: SeChangeNotifyPrivilege 1904 1.exe Token: SeCreateTokenPrivilege 1904 1.exe Token: SeMachineAccountPrivilege 1904 1.exe Token: SeSecurityPrivilege 1904 1.exe Token: SeAssignPrimaryTokenPrivilege 1904 1.exe Token: SeCreateGlobalPrivilege 1904 1.exe Token: 33 1904 1.exe Token: SeDebugPrivilege 1828 explorer.exe Token: SeRestorePrivilege 1828 explorer.exe Token: SeBackupPrivilege 1828 explorer.exe Token: SeLoadDriverPrivilege 1828 explorer.exe Token: SeCreatePagefilePrivilege 1828 explorer.exe Token: SeShutdownPrivilege 1828 explorer.exe Token: SeTakeOwnershipPrivilege 1828 explorer.exe Token: SeChangeNotifyPrivilege 1828 explorer.exe Token: SeCreateTokenPrivilege 1828 explorer.exe Token: SeMachineAccountPrivilege 1828 explorer.exe Token: SeSecurityPrivilege 1828 explorer.exe Token: SeAssignPrimaryTokenPrivilege 1828 explorer.exe Token: SeCreateGlobalPrivilege 1828 explorer.exe Token: 33 1828 explorer.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
o1ea9q1cu15q7.exepid Process 668 o1ea9q1cu15q7.exe -
Suspicious use of WriteProcessMemory 45 IoCs
Processes:
1.exe1.exeexplorer.exedescription pid Process procid_target PID 1088 wrote to memory of 1904 1088 1.exe 25 PID 1088 wrote to memory of 1904 1088 1.exe 25 PID 1088 wrote to memory of 1904 1088 1.exe 25 PID 1088 wrote to memory of 1904 1088 1.exe 25 PID 1088 wrote to memory of 1904 1088 1.exe 25 PID 1088 wrote to memory of 1904 1088 1.exe 25 PID 1904 wrote to memory of 1828 1904 1.exe 30 PID 1904 wrote to memory of 1828 1904 1.exe 30 PID 1904 wrote to memory of 1828 1904 1.exe 30 PID 1904 wrote to memory of 1828 1904 1.exe 30 PID 1904 wrote to memory of 1828 1904 1.exe 30 PID 1904 wrote to memory of 1828 1904 1.exe 30 PID 1904 wrote to memory of 1828 1904 1.exe 30 PID 1828 wrote to memory of 1232 1828 explorer.exe 19 PID 1828 wrote to memory of 1232 1828 explorer.exe 19 PID 1828 wrote to memory of 1232 1828 explorer.exe 19 PID 1828 wrote to memory of 1232 1828 explorer.exe 19 PID 1828 wrote to memory of 1232 1828 explorer.exe 19 PID 1828 wrote to memory of 1232 1828 explorer.exe 19 PID 1828 wrote to memory of 1264 1828 explorer.exe 18 PID 1828 wrote to memory of 1264 1828 explorer.exe 18 PID 1828 wrote to memory of 1264 1828 explorer.exe 18 PID 1828 wrote to memory of 1264 1828 explorer.exe 18 PID 1828 wrote to memory of 1264 1828 explorer.exe 18 PID 1828 wrote to memory of 1264 1828 explorer.exe 18 PID 1828 wrote to memory of 528 1828 explorer.exe 31 PID 1828 wrote to memory of 528 1828 explorer.exe 31 PID 1828 wrote to memory of 528 1828 explorer.exe 31 PID 1828 wrote to memory of 528 1828 explorer.exe 31 PID 1828 wrote to memory of 528 1828 explorer.exe 31 PID 1828 wrote to memory of 528 1828 explorer.exe 31 PID 1828 wrote to memory of 1072 1828 explorer.exe 32 PID 1828 wrote to memory of 1072 1828 explorer.exe 32 PID 1828 wrote to memory of 1072 1828 explorer.exe 32 PID 1828 wrote to memory of 1072 1828 explorer.exe 32 PID 1828 wrote to memory of 1072 1828 explorer.exe 32 PID 1828 wrote to memory of 1072 1828 explorer.exe 32 PID 1828 wrote to memory of 1072 1828 explorer.exe 32 PID 1828 wrote to memory of 668 1828 explorer.exe 33 PID 1828 wrote to memory of 668 1828 explorer.exe 33 PID 1828 wrote to memory of 668 1828 explorer.exe 33 PID 1828 wrote to memory of 668 1828 explorer.exe 33 PID 1828 wrote to memory of 668 1828 explorer.exe 33 PID 1828 wrote to memory of 668 1828 explorer.exe 33 PID 1828 wrote to memory of 668 1828 explorer.exe 33
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1264
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C:\Users\Admin\AppData\Local\Temp\1.exe"C:\Users\Admin\AppData\Local\Temp\1.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1088 -
C:\Users\Admin\AppData\Local\Temp\1.exe"C:\Users\Admin\AppData\Local\Temp\1.exe"3⤵
- 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:1904 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe4⤵
- Modifies firewall policy service
- Checks BIOS information in registry
- Loads dropped DLL
- Adds Run key to start application
- Drops desktop.ini file(s)
- 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
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1828 -
C:\Users\Admin\AppData\Local\Temp\y59c5um9gc_1.exe/suac5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:1072
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C:\Users\Admin\AppData\Local\Temp\o1ea9q1cu15q7.exe"C:\Users\Admin\AppData\Local\Temp\o1ea9q1cu15q7.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:668
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵PID:1232
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:528
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
07f2ddc571ace474d3d7c0e5efd051a2
SHA1ddb49e4e422c5a7a6e9db9c92776c2531bf10ca8
SHA2564524311e34beb91833ab812e17dc231724539c892dfeacd24ccdd8c2951a1b8f
SHA5124d453dfe4d4b642a71917efd75f2f4aebf8d3e964f3be589a643694d633ed5f7934c1a392559a264ba870746da122735dc7999ad4cc40d58f19a60d04e20ae3e
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MD5
a3a799eb1435896baea3a8e079c8dd02
SHA1cb0ce4c57cd8e4561a88ce20e80888d097b00900
SHA25655c12cb22033e12af48c4bb80b660e4ace8ed2364e7147979e30355bab7d5469
SHA5127cf21f437cb33fb2fe03b496309509266db8863650d175072f57b278e96a82b508651cdbc61aa08334858ffe18e251039a3c3d421d97a3749ab21ae16c89a3d9
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MD5
a3a799eb1435896baea3a8e079c8dd02
SHA1cb0ce4c57cd8e4561a88ce20e80888d097b00900
SHA25655c12cb22033e12af48c4bb80b660e4ace8ed2364e7147979e30355bab7d5469
SHA5127cf21f437cb33fb2fe03b496309509266db8863650d175072f57b278e96a82b508651cdbc61aa08334858ffe18e251039a3c3d421d97a3749ab21ae16c89a3d9
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MD5
07f2ddc571ace474d3d7c0e5efd051a2
SHA1ddb49e4e422c5a7a6e9db9c92776c2531bf10ca8
SHA2564524311e34beb91833ab812e17dc231724539c892dfeacd24ccdd8c2951a1b8f
SHA5124d453dfe4d4b642a71917efd75f2f4aebf8d3e964f3be589a643694d633ed5f7934c1a392559a264ba870746da122735dc7999ad4cc40d58f19a60d04e20ae3e
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MD5
a3a799eb1435896baea3a8e079c8dd02
SHA1cb0ce4c57cd8e4561a88ce20e80888d097b00900
SHA25655c12cb22033e12af48c4bb80b660e4ace8ed2364e7147979e30355bab7d5469
SHA5127cf21f437cb33fb2fe03b496309509266db8863650d175072f57b278e96a82b508651cdbc61aa08334858ffe18e251039a3c3d421d97a3749ab21ae16c89a3d9