Analysis
- max time kernel
150s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
05/11/2022, 14:37
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
21 signatures
150 seconds
General
- Target file.exe
- Size 286KB
- Sample221105-ry56asgcb3
- SHA256 8ec931cddc18db83ebd308660dece0e1f5b6fe022786c700496a73a73e9f1507
- MD5 4f6b346ced7ff8ea55ad556dabadab40
- SHA1 ea231750bf2d0d189f0618f19f7a1d859ed6f440
- SHA512 cea88c3cd65455583ab83b73f99192aad09317b0ac3d13f704f2cec682a3809dc5f24d989341f649e8518b4d88a707523f0972ab0831287e0647113749b88909
- SSDEEP 3072:0qVzq+Ebg7gg8lq65aBPOcImomqJSTkTJyZZo3yudm6UL+Zqby5Pyn9EJ:tZqQN8MZM+o4EJTTdm6zZKyZyno
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/5012-133-0x0000000000850000-0x0000000000859000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 1 IoCs
flow pid Process 36 3672 rundll32.exe - Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 312 F07F.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 312 set thread context of 4448 312 F07F.exe 92 - 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 2664 312 WerFault.exe 84 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Checks processor information in registry 2 TTPs 44 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\VendorIdentifier F07F.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Component Information rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 F07F.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1 F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\FeatureSet F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Configuration Data rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\FeatureSet rundll32.exe Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Previous Update Revision F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Status rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Status F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\VendorIdentifier F07F.exe Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Update Status rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Platform Specific Field 1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Identifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Previous Update Revision rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor F07F.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Component Information F07F.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Configuration Data rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 F07F.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Update Status F07F.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found - Modifies registry class 19 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 760 Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5012 file.exe 5012 file.exe 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found 760 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 760 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 5012 file.exe - Suspicious use of AdjustPrivilegeToken 23 IoCs
description pid Process Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found Token: SeDebugPrivilege 4448 rundll32.exe Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found Token: SeShutdownPrivilege 760 Process not Found Token: SeCreatePagefilePrivilege 760 Process not Found - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4448 rundll32.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 760 Process not Found 760 Process not Found - Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 760 wrote to memory of 312 760 Process not Found 84 PID 760 wrote to memory of 312 760 Process not Found 84 PID 760 wrote to memory of 312 760 Process not Found 84 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 3672 312 F07F.exe 88 PID 312 wrote to memory of 4448 312 F07F.exe 92 PID 312 wrote to memory of 4448 312 F07F.exe 92 PID 312 wrote to memory of 4448 312 F07F.exe 92 PID 312 wrote to memory of 4448 312 F07F.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:5012
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C:\Users\Admin\AppData\Local\Temp\F07F.exeC:\Users\Admin\AppData\Local\Temp\F07F.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:312 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
- Blocklisted process makes network request
PID:3672
-
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
- Checks processor information in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4448
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 312 -s 10682⤵
- Program crash
PID:2664
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 312 -ip 3121⤵PID:3392
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\F07F.exe
- Size 1.3MB
- SHA256 edfce5aa7f69d4216ad9214519d0f50e75058fc074722b906d7beedf59ee1281
- MD5 f8244a0b3f8c2f695ca83fd57b559886
- SHA1 31ca73ee87268a7e6aa7e89f441ce1c42829870d
- SHA512 90cb17960849a182b328315523e5130d99bee1211a0e1f065f0c566d4626cb6bf33ab03c4b22f4daeaa363815276e69ceff4525d5142bdcdc99a96afca4bd9ea
- SSDEEP 24576:ro3MB9QGcm7PFHGMBuqQ+s7OPtM8v3T98GMyZL0fS/NPLnRpGCnEn2AQa:8K1juPoP28/xffL0fUznfzXa
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\F07F.exe
- Size 1.3MB
- SHA256 edfce5aa7f69d4216ad9214519d0f50e75058fc074722b906d7beedf59ee1281
- MD5 f8244a0b3f8c2f695ca83fd57b559886
- SHA1 31ca73ee87268a7e6aa7e89f441ce1c42829870d
- SHA512 90cb17960849a182b328315523e5130d99bee1211a0e1f065f0c566d4626cb6bf33ab03c4b22f4daeaa363815276e69ceff4525d5142bdcdc99a96afca4bd9ea
- SSDEEP 24576:ro3MB9QGcm7PFHGMBuqQ+s7OPtM8v3T98GMyZL0fS/NPLnRpGCnEn2AQa:8K1juPoP28/xffL0fUznfzXa
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Wffwew.tmp
- Size 3.5MB
- SHA256 bcdf4c540c4289f81c98448d0a4482a96522fb767ab6015e76288afce148226a
- MD5 a7d875022bb5e3a34d034b947003d1b3
- SHA1 5905ca93fea101ce80e5bf8925eb2a7eec1e333d
- SHA512 f2b78a100cf0fa84909629b892e548d7ef9797621623a96aa75f15241d7350eecca117c3793056c30dc317ade8ecc0023c2b875516d9c25ac9bb0d880bb3149a
- SSDEEP 98304:CzEIlocAsdYinQC3qNdVGe7qCUGsHCjf+tGMFK1:CgubdFnQCaNdwCUGsHC7+tGMFK1
- MD5 SHA1 SHA512 SSDEEP