Analysis
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max time kernel
150s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
19-12-2022 17:17
Static task
static1
Behavioral task
behavioral1
Sample
36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe
Resource
win7-20221111-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
22 signatures
150 seconds
General
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Target
36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe
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Size
310KB
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MD5
c6d5caf032d4435e71637bd333f174fb
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SHA1
1971852a4bedd32ac3a74d7a9600dcb369e71cce
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SHA256
36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007
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SHA512
7a7176c80ade6000dbb7a4b94cb11f229b360ea8adab69d829cf24541d5f364e9f6143a697f1c839336da98261f9a038aacc4c463b90d67bb2fba56158d8144e
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SSDEEP
6144:+gxRLtYltAaD+/eWOGkLc3zJJaRH4rWlRjO1n:+qRpYlt5DXbBotJayrW9u
Score
10/10
Malware Config
Signatures
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Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/4736-133-0x00000000005F0000-0x00000000005F9000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Blocklisted process makes network request 2 IoCs
flow pid Process 50 404 rundll32.exe 52 404 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 776 4825.exe -
Loads dropped DLL 1 IoCs
pid Process 404 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 404 set thread context of 4228 404 rundll32.exe 93 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 3848 776 WerFault.exe 89 -
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 36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe -
Checks processor information in registry 2 TTPs 22 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Previous Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Status rundll32.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\ProcessorNameString rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\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\1\Update Status rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Configuration Data rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Previous Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision rundll32.exe Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Component Information 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\Platform Specific Field 1 rundll32.exe -
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found -
Modifies registry class 30 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e0031000000000093554592100054656d7000003a0009000400efbe6b557d6c93554b922e0000000000000000000000000000000000000000000000000086e82b00540065006d007000000014000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 740 Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4736 36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe 4736 36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 740 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4736 36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 740 Process not Found Token: SeCreatePagefilePrivilege 740 Process not Found Token: SeShutdownPrivilege 740 Process not Found Token: SeCreatePagefilePrivilege 740 Process not Found Token: SeShutdownPrivilege 740 Process not Found Token: SeCreatePagefilePrivilege 740 Process not Found Token: SeShutdownPrivilege 740 Process not Found Token: SeCreatePagefilePrivilege 740 Process not Found Token: SeShutdownPrivilege 740 Process not Found Token: SeCreatePagefilePrivilege 740 Process not Found Token: SeShutdownPrivilege 740 Process not Found Token: SeCreatePagefilePrivilege 740 Process not Found Token: SeShutdownPrivilege 740 Process not Found Token: SeCreatePagefilePrivilege 740 Process not Found Token: SeShutdownPrivilege 740 Process not Found Token: SeCreatePagefilePrivilege 740 Process not Found Token: SeShutdownPrivilege 740 Process not Found Token: SeCreatePagefilePrivilege 740 Process not Found -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4228 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 740 Process not Found 740 Process not Found -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 740 wrote to memory of 776 740 Process not Found 89 PID 740 wrote to memory of 776 740 Process not Found 89 PID 740 wrote to memory of 776 740 Process not Found 89 PID 776 wrote to memory of 404 776 4825.exe 90 PID 776 wrote to memory of 404 776 4825.exe 90 PID 776 wrote to memory of 404 776 4825.exe 90 PID 404 wrote to memory of 4228 404 rundll32.exe 93 PID 404 wrote to memory of 4228 404 rundll32.exe 93 PID 404 wrote to memory of 4228 404 rundll32.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe"C:\Users\Admin\AppData\Local\Temp\36962dbe21b03b6b13e7a6e607f908eb54c0fa8d511d3d522fcb31322c938007.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4736
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C:\Users\Admin\AppData\Local\Temp\4825.exeC:\Users\Admin\AppData\Local\Temp\4825.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:776 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Ipoetwsuqhd.tmp",Sufeidweoe2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:404 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 239493⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:4228
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 776 -s 5282⤵
- Program crash
PID:3848
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 776 -ip 7761⤵PID:4168
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:3588
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.0MB
MD51a61e55fa3fd1dc5cbf63d91e6c5a93b
SHA10f68fc53fafb875aa9150ab4d39b8b5015cac684
SHA25630b818c6458a2626eee09c58a2f02f11568c85a3011b4fde5b601cf8972d8a2a
SHA512975c9594a3583bd72d550c57ddd60bec585c87f556aa8118ed4288f0f77e69473a11c0d889692e758363ecdb4c4e9abb6c3d7bb01cc173051bddb9e46ca598d8
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Filesize
1.0MB
MD51a61e55fa3fd1dc5cbf63d91e6c5a93b
SHA10f68fc53fafb875aa9150ab4d39b8b5015cac684
SHA25630b818c6458a2626eee09c58a2f02f11568c85a3011b4fde5b601cf8972d8a2a
SHA512975c9594a3583bd72d550c57ddd60bec585c87f556aa8118ed4288f0f77e69473a11c0d889692e758363ecdb4c4e9abb6c3d7bb01cc173051bddb9e46ca598d8
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Filesize
726KB
MD56ea8a6cc5fed6c664df1b3ef7c56b55d
SHA16b244d708706441095ae97294928967ddf28432b
SHA2562c7500ac5ebb0116e640747b8a5f0a2648f7d2f5f516ebb398b864cccc626fbe
SHA5124a328a66df407e4c9fa230287104771ea3b5dd8265d60314797426101a8be19d13bc57de2388f0f90b20ada82d950e156ef4267c029080a6254b80eefd8b8741
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Filesize
726KB
MD56ea8a6cc5fed6c664df1b3ef7c56b55d
SHA16b244d708706441095ae97294928967ddf28432b
SHA2562c7500ac5ebb0116e640747b8a5f0a2648f7d2f5f516ebb398b864cccc626fbe
SHA5124a328a66df407e4c9fa230287104771ea3b5dd8265d60314797426101a8be19d13bc57de2388f0f90b20ada82d950e156ef4267c029080a6254b80eefd8b8741