ramnit | 5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aad

Analysis

max time kernel
93s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 07:58

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General

Target

5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Size

1.2MB
MD5

2bc25cf29c07fc5f1be61c56470cb4c0
SHA1

3d88439b3297dbcd8703f99c24777e7ae97f8818
SHA256

5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aad
SHA512

6817e2e4fafe88ad414906cac7570e31c3130c7e346898c115d5b98384aaa4d8c30c9409bfa1c6d692e414c67610bd48aec25c94489d3e5198594c50fe0585f4
SSDEEP

24576:lznORZNguQDQuPUcJTHuhG+jIZOzeFXCpgz4ntnMMMMMMPPFt:kgXTH0jvqFSpgc1MMMMMMH7

Score

10^/10

ramnit banker discovery persistence spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
804	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe
4908	DesktopLayer.exe

Modifies system executable filetype association 2 TTPs 4 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000c000000023b29-3.dat	upx
behavioral2/memory/804-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4908-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4908-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4908-9-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4908-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px7A8F.tmp	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31149968"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31149968"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1318567374"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7A2245A1-BB83-11EF-BEF1-5227CD58F2D9} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1318567374"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31149968"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1322161050"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441100858"	iexplore.exe

Modifies registry class 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\DropHandler\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\WinRAR32	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.rev	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shell\open	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shell	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\WinRAR32	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\DropHandler\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinRAR.exe\" \"%1\""	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shell	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\DragDropHandlers\WinRAR	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\WinRAR	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WinRAR.exe\" \"%1\""	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinRAR.exe,1"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\DropHandler	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}\	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\DefaultIcon	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\DefaultIcon	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell\open\command	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR32	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\WinRAR\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinRAR.exe,0"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shell\open	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\WinRAR	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinRAR.exe,0"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.rev\ = "WinRAR.REV"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\ = "RAR 恢复卷"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell\open	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\WinRAR32	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\DropHandler\ = "{B41DB860-64E4-11D2-9906-E49FADC173CA}"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\WinRAR	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shell\open\command	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shell\open\command	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\ContextMenuHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers\{B41DB860-8EE4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.ZIP\shellex\PropertySheetHandlers	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\shell	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\DragDropHandlers\WinRAR32\ = "{B41DB860-8EE4-11D2-9906-E49FADC173CA}"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\PropertySheetHandlers\{B41DB860-64E4-11D2-9906-E49FADC173CA}	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\ = "WinRAR 压缩文件"	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR\shellex\DropHandler	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WinRAR.REV\DefaultIcon	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4908	DesktopLayer.exe
4908	DesktopLayer.exe
4908	DesktopLayer.exe
4908	DesktopLayer.exe
4908	DesktopLayer.exe
4908	DesktopLayer.exe
4908	DesktopLayer.exe
4908	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1312	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1312	iexplore.exe
1312	iexplore.exe
696	IEXPLORE.EXE
696	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 804	4248	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe	82
PID 4248 wrote to memory of 804	4248	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe	82
PID 4248 wrote to memory of 804	4248	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe	82
PID 804 wrote to memory of 4908	804	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe	83
PID 804 wrote to memory of 4908	804	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe	83
PID 804 wrote to memory of 4908	804	5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe	83
PID 4908 wrote to memory of 1312	4908	DesktopLayer.exe	84
PID 4908 wrote to memory of 1312	4908	DesktopLayer.exe	84
PID 1312 wrote to memory of 696	1312	iexplore.exe	85
PID 1312 wrote to memory of 696	1312	iexplore.exe	85
PID 1312 wrote to memory of 696	1312	iexplore.exe	85

C:\Users\Admin\AppData\Local\Temp\5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe
"C:\Users\Admin\AppData\Local\Temp\5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadN.exe"
1⤵
- Modifies system executable filetype association
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4248
- C:\Users\Admin\AppData\Local\Temp\5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe
  C:\Users\Admin\AppData\Local\Temp\5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:804
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4908
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1312
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1312 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
cda3a1245093d86501ad9761f10320fa

SHA1
9ff6b95b0a72732f8afbd9504fa640bec134b498

SHA256
eb60e5aa4327f06e072f6b97c6a52532aa55d5a5dc53e1d48ecced85da6214dc

SHA512
51abd474d484588dd1cdc5580cf28d6a5d0481a4488f1f5b8a491c4f30ecaf5ba8cffa9c9ac696358d6725c6e290e8d28d2e3984d3d55f0ae496a65bc4142a1d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
3151a2387990a5cd7ae2d653c9710b50

SHA1
8df563312b36366699a9fcad1153bee4398b472b

SHA256
78cd448c7905ae8e7e63606d243bb72afcf8712f1d65044d0515e9bfbd701326

SHA512
66abe7a3eac286d37dc9aec1ca69147f6eb611825dd038987ee27a28212637f006a83b2bb07638b422bb9356db26f293053d7fcab3911cee6b7467e12c95d092

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0GUUC90F\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\5bcbca40264f7463c4658866d91e1637ad611226796b7f33f7845b98e3032aadNSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/804-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4248-0-0x0000000000480000-0x0000000000656000-memory.dmp

Filesize
1.8MB

Download
memory/4248-18-0x0000000000480000-0x0000000000656000-memory.dmp

Filesize
1.8MB

Download
memory/4908-13-0x0000000001F50000-0x0000000001F51000-memory.dmp

Filesize
4KB

Download
memory/4908-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4908-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4908-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4908-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download