Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19/12/2022, 10:24
Static task
static1
Behavioral task
behavioral1
Sample
5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d.exe
Resource
win10v2004-20220812-en
General
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Target
5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d.exe
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Size
307KB
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MD5
004929ff3e100389624575332e1bf031
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SHA1
8a081920bdb38fdc34a31fc5654af1cea7b44e20
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SHA256
5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d
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SHA512
0ddb2aab9812e4e239b8cd60c2a50546c7881eff9441e8b194e42a4900ad10f29ed77e3b2d007d1af65397659f85d3e353e30b0f19d4e7ed1e1aa388b6509876
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SSDEEP
6144:gr4dDL4UsLn4jrRtKzE6KA2/YML3FZ0iPvzpQ6rFiaI:g6sUsyuEYs3XxnzpQ6rF
Malware Config
Signatures
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Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral1/memory/2376-133-0x00000000005F0000-0x00000000005F9000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Blocklisted process makes network request 3 IoCs
flow pid Process 52 2400 rundll32.exe 54 2400 rundll32.exe 67 2400 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 4424 607F.exe -
Loads dropped DLL 1 IoCs
pid Process 2400 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2400 set thread context of 4168 2400 rundll32.exe 91 -
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 4576 4424 WerFault.exe 86 -
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 5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d.exe -
Checks processor information in registry 2 TTPs 21 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 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\VendorIdentifier 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\Component Information rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Platform Specific Field 1 rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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\0\Previous Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe Key value enumerated \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\Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Component Information rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Previous 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\Identifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Configuration Data rundll32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found -
Modifies registry class 30 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e003100000000009355195b100054656d7000003a0009000400efbe0c551d9c9355205b2e0000000000000000000000000000000000000000000000000052738300540065006d007000000014000000 Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1996 Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2376 5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d.exe 2376 5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d.exe 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found 1996 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1996 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2376 5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 1996 Process not Found Token: SeCreatePagefilePrivilege 1996 Process not Found Token: SeShutdownPrivilege 1996 Process not Found Token: SeCreatePagefilePrivilege 1996 Process not Found Token: SeShutdownPrivilege 1996 Process not Found Token: SeCreatePagefilePrivilege 1996 Process not Found Token: SeShutdownPrivilege 1996 Process not Found Token: SeCreatePagefilePrivilege 1996 Process not Found Token: SeShutdownPrivilege 1996 Process not Found Token: SeCreatePagefilePrivilege 1996 Process not Found Token: SeShutdownPrivilege 1996 Process not Found Token: SeCreatePagefilePrivilege 1996 Process not Found Token: SeShutdownPrivilege 1996 Process not Found Token: SeCreatePagefilePrivilege 1996 Process not Found Token: SeShutdownPrivilege 1996 Process not Found Token: SeCreatePagefilePrivilege 1996 Process not Found Token: SeShutdownPrivilege 1996 Process not Found Token: SeCreatePagefilePrivilege 1996 Process not Found -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4168 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1996 Process not Found 1996 Process not Found -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1996 wrote to memory of 4424 1996 Process not Found 86 PID 1996 wrote to memory of 4424 1996 Process not Found 86 PID 1996 wrote to memory of 4424 1996 Process not Found 86 PID 4424 wrote to memory of 2400 4424 607F.exe 87 PID 4424 wrote to memory of 2400 4424 607F.exe 87 PID 4424 wrote to memory of 2400 4424 607F.exe 87 PID 2400 wrote to memory of 4168 2400 rundll32.exe 91 PID 2400 wrote to memory of 4168 2400 rundll32.exe 91 PID 2400 wrote to memory of 4168 2400 rundll32.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d.exe"C:\Users\Admin\AppData\Local\Temp\5022d95f9df8cab8b9ef3f2447a8fbece4469db566bb6bd5670a8684481b680d.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2376
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C:\Users\Admin\AppData\Local\Temp\607F.exeC:\Users\Admin\AppData\Local\Temp\607F.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4424 -
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:2400 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 239863⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:4168
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4424 -s 5282⤵
- Program crash
PID:4576
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4424 -ip 44241⤵PID:4672
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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:2448
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.1MB
MD5c9234f802b4fb9bcf16237d438fa86e6
SHA181b2eb0d8d06c0006929a3e0ebdaf6615aca1908
SHA25608a5c87ab1ea14d269adfc5ae54db174b3465d0a7d9ba590dd6606091440b9b7
SHA5128c018af20bad4de00125fe1cdbeb7b8bb059846b7b67c75d31cd12bb909b7f012517bb7d31641a2d7156cf3a9798cccd14dd542f5e2079bd0d47a29c96102bd3
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Filesize
1.1MB
MD5c9234f802b4fb9bcf16237d438fa86e6
SHA181b2eb0d8d06c0006929a3e0ebdaf6615aca1908
SHA25608a5c87ab1ea14d269adfc5ae54db174b3465d0a7d9ba590dd6606091440b9b7
SHA5128c018af20bad4de00125fe1cdbeb7b8bb059846b7b67c75d31cd12bb909b7f012517bb7d31641a2d7156cf3a9798cccd14dd542f5e2079bd0d47a29c96102bd3
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Filesize
726KB
MD56ea8a6cc5fed6c664df1b3ef7c56b55d
SHA16b244d708706441095ae97294928967ddf28432b
SHA2562c7500ac5ebb0116e640747b8a5f0a2648f7d2f5f516ebb398b864cccc626fbe
SHA5124a328a66df407e4c9fa230287104771ea3b5dd8265d60314797426101a8be19d13bc57de2388f0f90b20ada82d950e156ef4267c029080a6254b80eefd8b8741
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Filesize
726KB
MD56ea8a6cc5fed6c664df1b3ef7c56b55d
SHA16b244d708706441095ae97294928967ddf28432b
SHA2562c7500ac5ebb0116e640747b8a5f0a2648f7d2f5f516ebb398b864cccc626fbe
SHA5124a328a66df407e4c9fa230287104771ea3b5dd8265d60314797426101a8be19d13bc57de2388f0f90b20ada82d950e156ef4267c029080a6254b80eefd8b8741