Analysis
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max time kernel
150s -
max time network
152s -
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, 10:23
Static task
static1
Behavioral task
behavioral1
Sample
50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0.exe
Resource
win10v2004-20221111-en
General
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Target
50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0.exe
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Size
306KB
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MD5
7c73253def55145f7306031c21a5d43f
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SHA1
123cd3e821352c2406da892dbf2eb47c5156a7c2
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SHA256
50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0
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SHA512
a8573785a9a672a8f46f2b93320fe4a28fbd7ed02baab91b85ed2ff9632147e5da50aeadd3345e1ecd4220836fb860657347e4a85527dbea8cdb76cfe1f9f944
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SSDEEP
6144:7rANLLwfUxgUZJX10nzMLy0p0iPvzpQ6rFiaI:7C3wfegUL1SzkxnzpQ6rF
Malware Config
Signatures
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Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral1/memory/964-133-0x00000000006B0000-0x00000000006B9000-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 34 4912 rundll32.exe 36 4912 rundll32.exe 57 4912 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 1316 937.exe -
Loads dropped DLL 1 IoCs
pid Process 4912 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4912 set thread context of 4784 4912 rundll32.exe 92 -
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 808 1316 WerFault.exe 88 -
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 50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0.exe -
Checks processor information in registry 2 TTPs 25 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\Update Revision 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\1\Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Configuration Data rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value enumerated \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\0\Identifier 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\VendorIdentifier rundll32.exe Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz 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\0\Update Status 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\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\Configuration Data 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\FeatureSet rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor 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\Component Information rundll32.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found -
Modifies registry class 30 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e003100000000009355145b100054656d7000003a0009000400efbe6b55586c9355195b2e000000000000000000000000000000000000000000000000001c788200540065006d007000000014000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 372 Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 964 50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0.exe 964 50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0.exe 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 372 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 964 50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 372 Process not Found Token: SeCreatePagefilePrivilege 372 Process not Found Token: SeShutdownPrivilege 372 Process not Found Token: SeCreatePagefilePrivilege 372 Process not Found Token: SeShutdownPrivilege 372 Process not Found Token: SeCreatePagefilePrivilege 372 Process not Found Token: SeShutdownPrivilege 372 Process not Found Token: SeCreatePagefilePrivilege 372 Process not Found Token: SeShutdownPrivilege 372 Process not Found Token: SeCreatePagefilePrivilege 372 Process not Found Token: SeShutdownPrivilege 372 Process not Found Token: SeCreatePagefilePrivilege 372 Process not Found Token: SeShutdownPrivilege 372 Process not Found Token: SeCreatePagefilePrivilege 372 Process not Found Token: SeShutdownPrivilege 372 Process not Found Token: SeCreatePagefilePrivilege 372 Process not Found Token: SeShutdownPrivilege 372 Process not Found Token: SeCreatePagefilePrivilege 372 Process not Found -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4784 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 372 Process not Found 372 Process not Found -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 372 wrote to memory of 1316 372 Process not Found 88 PID 372 wrote to memory of 1316 372 Process not Found 88 PID 372 wrote to memory of 1316 372 Process not Found 88 PID 1316 wrote to memory of 4912 1316 937.exe 89 PID 1316 wrote to memory of 4912 1316 937.exe 89 PID 1316 wrote to memory of 4912 1316 937.exe 89 PID 4912 wrote to memory of 4784 4912 rundll32.exe 92 PID 4912 wrote to memory of 4784 4912 rundll32.exe 92 PID 4912 wrote to memory of 4784 4912 rundll32.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0.exe"C:\Users\Admin\AppData\Local\Temp\50eb2bafdbacf124d8917d9cade2acdecbde4c3316a98a5a2fdd8c6651f73be0.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:964
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C:\Users\Admin\AppData\Local\Temp\937.exeC:\Users\Admin\AppData\Local\Temp\937.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1316 -
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:4912 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 239793⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:4784
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1316 -s 5522⤵
- Program crash
PID:808
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1316 -ip 13161⤵PID:3528
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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:2504
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