Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
06-12-2022 02:12
Static task
static1
Behavioral task
behavioral1
Sample
fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.exe
Resource
win7-20220812-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
21 signatures
150 seconds
General
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Target
fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.exe
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Size
273KB
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MD5
09e920d56233fd77bed9d60ebce218c9
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SHA1
6b55be6b3220c1740ef71825264f165069bda2c0
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SHA256
fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1
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SHA512
58f1877996b893e0831a9a92d2a497c4fe156a9eda2f651282201f72d7c2761bed30cc876db5d55e359e927dd14038eb675e9a415c32f5c42e89017865d48580
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SSDEEP
6144:Amp8hFuzquZsEhZMcMqeBhAqIDcF0JVS:AmpUFuzqkhZMcnoSDcF0JVS
Score
10/10
Malware Config
Signatures
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Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/4812-133-0x00000000005C0000-0x00000000005C9000-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 44 2420 rundll32.exe 46 2420 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 1824 C16B.exe -
Loads dropped DLL 1 IoCs
pid Process 2420 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2420 set thread context of 4260 2420 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 1348 1824 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 fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.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 opened \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\0\Update Revision 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\0\ProcessorNameString rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 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\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\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\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\Update Status rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet 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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1 rundll32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e003100000000008655c811100054656d7000003a0009000400efbe21550a588655cd112e0000000000000000000000000000000000000000000000000080860000540065006d007000000014000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_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-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3024 Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4812 fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.exe 4812 fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.exe 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3024 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4812 fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 3024 Process not Found Token: SeCreatePagefilePrivilege 3024 Process not Found Token: SeShutdownPrivilege 3024 Process not Found Token: SeCreatePagefilePrivilege 3024 Process not Found Token: SeShutdownPrivilege 3024 Process not Found Token: SeCreatePagefilePrivilege 3024 Process not Found Token: SeShutdownPrivilege 3024 Process not Found Token: SeCreatePagefilePrivilege 3024 Process not Found Token: SeShutdownPrivilege 3024 Process not Found Token: SeCreatePagefilePrivilege 3024 Process not Found Token: SeShutdownPrivilege 3024 Process not Found Token: SeCreatePagefilePrivilege 3024 Process not Found Token: SeShutdownPrivilege 3024 Process not Found Token: SeCreatePagefilePrivilege 3024 Process not Found Token: SeShutdownPrivilege 3024 Process not Found Token: SeCreatePagefilePrivilege 3024 Process not Found Token: SeShutdownPrivilege 3024 Process not Found Token: SeCreatePagefilePrivilege 3024 Process not Found -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4260 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3024 Process not Found 3024 Process not Found -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3024 wrote to memory of 1824 3024 Process not Found 88 PID 3024 wrote to memory of 1824 3024 Process not Found 88 PID 3024 wrote to memory of 1824 3024 Process not Found 88 PID 1824 wrote to memory of 2420 1824 C16B.exe 89 PID 1824 wrote to memory of 2420 1824 C16B.exe 89 PID 1824 wrote to memory of 2420 1824 C16B.exe 89 PID 2420 wrote to memory of 4260 2420 rundll32.exe 93 PID 2420 wrote to memory of 4260 2420 rundll32.exe 93 PID 2420 wrote to memory of 4260 2420 rundll32.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.exe"C:\Users\Admin\AppData\Local\Temp\fc4d449e540c2adc6d3a7cfb175f72ca776cc38461d5c282db12fbe117f40cf1.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4812
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C:\Users\Admin\AppData\Local\Temp\C16B.exeC:\Users\Admin\AppData\Local\Temp\C16B.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1824 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Eshwsfeuryqqffi.tmp",Qiysidaatietut2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2420 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 172193⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:4260
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1824 -s 2522⤵
- Program crash
PID:1348
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1824 -ip 18241⤵PID:4728
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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:3608
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.1MB
MD5b959d35bbf5d6f3ce2166e4444e96d3e
SHA14f0e90d46bc1f199f8de1f7573cc0e9e726266c1
SHA256dc43d22edbbb30a21b8491829c8c1e11d67ec19acaf3b10ae7e5141ec746ec90
SHA512d65b36e95320bf28bfb21b8108d712992153a88dc0874702036911a61d6af49d0bc2b92f9a78c84d45a5e4417e7bb9f4796546c8ac8dc53bfb452a005825f07c
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Filesize
1.1MB
MD5b959d35bbf5d6f3ce2166e4444e96d3e
SHA14f0e90d46bc1f199f8de1f7573cc0e9e726266c1
SHA256dc43d22edbbb30a21b8491829c8c1e11d67ec19acaf3b10ae7e5141ec746ec90
SHA512d65b36e95320bf28bfb21b8108d712992153a88dc0874702036911a61d6af49d0bc2b92f9a78c84d45a5e4417e7bb9f4796546c8ac8dc53bfb452a005825f07c
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Filesize
768KB
MD596655ec3277ef2e9ea4b5723f60f5b04
SHA1b29e9005cedc5e0d63981e59b05a12f006bd8640
SHA25636cb491e91dc40d4a24f25944c5dca41195e1e7eb9788028f72e38b08789616d
SHA512cb151e071426cba0ec433b4ff8b173a9e07fc922e2b9d9d9359bcd5367a79e5bb996e8afbbfe4dd11bde1a33724b7f70479ac248762f5c9d17f3e0d7d67c151c
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Filesize
768KB
MD596655ec3277ef2e9ea4b5723f60f5b04
SHA1b29e9005cedc5e0d63981e59b05a12f006bd8640
SHA25636cb491e91dc40d4a24f25944c5dca41195e1e7eb9788028f72e38b08789616d
SHA512cb151e071426cba0ec433b4ff8b173a9e07fc922e2b9d9d9359bcd5367a79e5bb996e8afbbfe4dd11bde1a33724b7f70479ac248762f5c9d17f3e0d7d67c151c