Analysis
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max time kernel
150s -
max time network
148s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
19/12/2022, 09:16
Static task
static1
Behavioral task
behavioral1
Sample
bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55.exe
Resource
win10-20220812-en
General
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Target
bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55.exe
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Size
307KB
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MD5
020a318f5515faf139b30412dde8760c
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SHA1
ff709428ba6245657c273b582b214b105fbbe345
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SHA256
bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55
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SHA512
64a61875f151e82ba09cdcb06094da07dbb9386fd547051c1a94de27a3bb4deb75fa31741bc79588aa0c712175ecadbe6abe0fb64cf47a3fa09e327ca7196ea7
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SSDEEP
6144:iyG/L3JIs2uzkXJZq9LTEXA0iPvzpQ6rFiaI:iHTJIbMkC9TaAxnzpQ6rF
Malware Config
Signatures
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Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral1/memory/2888-147-0x00000000001D0000-0x00000000001D9000-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 19 3536 rundll32.exe 22 3536 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 2124 3A4A.exe -
Deletes itself 1 IoCs
pid Process 3028 Process not Found -
Loads dropped DLL 1 IoCs
pid Process 3536 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3536 set thread context of 4380 3536 rundll32.exe 68 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55.exe -
Checks processor information in registry 2 TTPs 24 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\FeatureSet 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\Previous Update Revision 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\1\Configuration Data rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Platform Specific Field 1 rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Identifier 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\VendorIdentifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\FeatureSet rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString 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\VendorIdentifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1 rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe Key value enumerated \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\Update Status 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\Configuration Data rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found -
Modifies registry class 36 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}" rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell 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-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 rundll32.exe Set value (int) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e0031000000000093554052100054656d7000003a0009000400efbe0c554b88935540522e0000000000000000000000000000000000000000000000000009725000540065006d007000000014000000 rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3028 Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2888 bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55.exe 2888 bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55.exe 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found 3028 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3028 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2888 bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 3028 Process not Found Token: SeCreatePagefilePrivilege 3028 Process not Found Token: SeShutdownPrivilege 3028 Process not Found Token: SeCreatePagefilePrivilege 3028 Process not Found Token: SeShutdownPrivilege 3028 Process not Found Token: SeCreatePagefilePrivilege 3028 Process not Found Token: SeShutdownPrivilege 3028 Process not Found Token: SeCreatePagefilePrivilege 3028 Process not Found Token: SeShutdownPrivilege 3028 Process not Found Token: SeCreatePagefilePrivilege 3028 Process not Found Token: SeShutdownPrivilege 3028 Process not Found Token: SeCreatePagefilePrivilege 3028 Process not Found Token: SeShutdownPrivilege 3028 Process not Found Token: SeCreatePagefilePrivilege 3028 Process not Found Token: SeShutdownPrivilege 3028 Process not Found Token: SeCreatePagefilePrivilege 3028 Process not Found Token: SeShutdownPrivilege 3028 Process not Found Token: SeCreatePagefilePrivilege 3028 Process not Found -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4380 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3028 Process not Found 3028 Process not Found -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3028 wrote to memory of 2124 3028 Process not Found 66 PID 3028 wrote to memory of 2124 3028 Process not Found 66 PID 3028 wrote to memory of 2124 3028 Process not Found 66 PID 2124 wrote to memory of 3536 2124 3A4A.exe 67 PID 2124 wrote to memory of 3536 2124 3A4A.exe 67 PID 2124 wrote to memory of 3536 2124 3A4A.exe 67 PID 3536 wrote to memory of 4380 3536 rundll32.exe 68 PID 3536 wrote to memory of 4380 3536 rundll32.exe 68 PID 3536 wrote to memory of 4380 3536 rundll32.exe 68
Processes
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C:\Users\Admin\AppData\Local\Temp\bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55.exe"C:\Users\Admin\AppData\Local\Temp\bee279ffc033646b7df7ada79b8b3012404c2ce37c5944ceb95c064f523d3f55.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2888
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C:\Users\Admin\AppData\Local\Temp\3A4A.exeC:\Users\Admin\AppData\Local\Temp\3A4A.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2124 -
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:3536 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 239553⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:4380
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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:5060
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.1MB
MD5d4fe627b0bc66a57bfdb76c531c06ce6
SHA11a9ff0a579460a2e90266ebbfbad127514a74e7a
SHA2569292bc6aec169cc1f3f223470669c6307f1d3e61687544c0a228846c1cf0df97
SHA512bea169646b86ca0659efe0989856d58098efcc70d8b8953045635ddd7d4293aed656771d8d0a1e5e4e87a4f272b8e6b69f4eeacd7d7f7220d5b6e50535aa2617
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Filesize
1.1MB
MD5d4fe627b0bc66a57bfdb76c531c06ce6
SHA11a9ff0a579460a2e90266ebbfbad127514a74e7a
SHA2569292bc6aec169cc1f3f223470669c6307f1d3e61687544c0a228846c1cf0df97
SHA512bea169646b86ca0659efe0989856d58098efcc70d8b8953045635ddd7d4293aed656771d8d0a1e5e4e87a4f272b8e6b69f4eeacd7d7f7220d5b6e50535aa2617
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Filesize
726KB
MD56ea8a6cc5fed6c664df1b3ef7c56b55d
SHA16b244d708706441095ae97294928967ddf28432b
SHA2562c7500ac5ebb0116e640747b8a5f0a2648f7d2f5f516ebb398b864cccc626fbe
SHA5124a328a66df407e4c9fa230287104771ea3b5dd8265d60314797426101a8be19d13bc57de2388f0f90b20ada82d950e156ef4267c029080a6254b80eefd8b8741
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Filesize
726KB
MD56ea8a6cc5fed6c664df1b3ef7c56b55d
SHA16b244d708706441095ae97294928967ddf28432b
SHA2562c7500ac5ebb0116e640747b8a5f0a2648f7d2f5f516ebb398b864cccc626fbe
SHA5124a328a66df407e4c9fa230287104771ea3b5dd8265d60314797426101a8be19d13bc57de2388f0f90b20ada82d950e156ef4267c029080a6254b80eefd8b8741