Analysis
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max time kernel
150s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
20-12-2022 14:52
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
General
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Target
file.exe
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Size
214KB
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MD5
9ac92f2a0c65c0ef8577af9f7ce31bf5
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SHA1
1a00e61a3b11d82ccfa26fdcc297bcec9c04da46
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SHA256
a2a56847c92e2742c52820dd151144878df54d947725c737e94332857b88c581
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SHA512
e5594fdd7aae6dec4d92a16fe47e53068427c4af711321f18bca8d9d756544dce9598b010a8435a9074c95efab974f5a41e7d2c48f5debe4913b88eaab22d3dc
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SSDEEP
3072:NALLoo7R3C/pSGzGoJTrfOUL7PWz7b/tFdwpKWRNHCDml:aLoxhBTrfOWDWjLdwpKkCa
Malware Config
Signatures
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Detects Smokeloader packer 1 IoCs
Processes:
resource yara_rule behavioral2/memory/5084-133-0x00000000004D0000-0x00000000004D9000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 45 1292 rundll32.exe 46 1292 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
2A7B.exepid process 4968 2A7B.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 1292 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
rundll32.exedescription pid process target process PID 1292 set thread context of 3556 1292 rundll32.exe rundll32.exe -
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
Processes:
WerFault.exepid pid_target process target process 1504 4968 WerFault.exe 2A7B.exe -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
file.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe -
Checks processor information in registry 2 TTPs 17 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key opened \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\0\VendorIdentifier 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\Identifier 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\0\Configuration Data 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\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\1\Previous Update Revision 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 enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\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\VendorIdentifier rundll32.exe -
Processes:
description ioc process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Toolbar Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 -
Modifies registry class 30 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 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 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\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 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 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 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff 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 = 4e003100000000009455a57e100054656d7000003a0009000400efbe6b557d6c9455aa7e2e00000000000000000000000000000000000000000000000000ebe57200540065006d007000000014000000 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" Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 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" Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
pid process 2492 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
file.exepid process 5084 file.exe 5084 file.exe 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 2492 -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
pid process 2492 -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
file.exepid process 5084 file.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
Processes:
description pid process Token: SeShutdownPrivilege 2492 Token: SeCreatePagefilePrivilege 2492 Token: SeShutdownPrivilege 2492 Token: SeCreatePagefilePrivilege 2492 Token: SeShutdownPrivilege 2492 Token: SeCreatePagefilePrivilege 2492 Token: SeShutdownPrivilege 2492 Token: SeCreatePagefilePrivilege 2492 Token: SeShutdownPrivilege 2492 Token: SeCreatePagefilePrivilege 2492 Token: SeShutdownPrivilege 2492 Token: SeCreatePagefilePrivilege 2492 Token: SeShutdownPrivilege 2492 Token: SeCreatePagefilePrivilege 2492 Token: SeShutdownPrivilege 2492 Token: SeCreatePagefilePrivilege 2492 Token: SeShutdownPrivilege 2492 Token: SeCreatePagefilePrivilege 2492 -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
rundll32.exepid process 3556 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
pid process 2492 2492 -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
pid process 2492 -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
2A7B.exerundll32.exedescription pid process target process PID 2492 wrote to memory of 4968 2492 2A7B.exe PID 2492 wrote to memory of 4968 2492 2A7B.exe PID 2492 wrote to memory of 4968 2492 2A7B.exe PID 4968 wrote to memory of 1292 4968 2A7B.exe rundll32.exe PID 4968 wrote to memory of 1292 4968 2A7B.exe rundll32.exe PID 4968 wrote to memory of 1292 4968 2A7B.exe rundll32.exe PID 1292 wrote to memory of 3556 1292 rundll32.exe rundll32.exe PID 1292 wrote to memory of 3556 1292 rundll32.exe rundll32.exe PID 1292 wrote to memory of 3556 1292 rundll32.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\2A7B.exeC:\Users\Admin\AppData\Local\Temp\2A7B.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Qsedeqtedeooeo.tmp",Wufaiiuuye2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 141003⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4968 -s 5282⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4968 -ip 49681⤵
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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⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\2A7B.exeFilesize
1.1MB
MD53682fe20c6c44be67abd34723a4d197f
SHA1599f5376783a3c73bd8e65a40594625ffc6be1cc
SHA25696d2f563c6cd77e8621b375a58d580eeeb41f9d026340a0e392d545bfea660d5
SHA512b38f1b95c6ec3fc79cc438060f8fd27bee8489b779c693a62c9d00105b4a8494c0b181cb990c5ac1b1dc9ea8c4bc6be41ff0cae100d81ac3e7cebc5c06b1aeb6
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C:\Users\Admin\AppData\Local\Temp\2A7B.exeFilesize
1.1MB
MD53682fe20c6c44be67abd34723a4d197f
SHA1599f5376783a3c73bd8e65a40594625ffc6be1cc
SHA25696d2f563c6cd77e8621b375a58d580eeeb41f9d026340a0e392d545bfea660d5
SHA512b38f1b95c6ec3fc79cc438060f8fd27bee8489b779c693a62c9d00105b4a8494c0b181cb990c5ac1b1dc9ea8c4bc6be41ff0cae100d81ac3e7cebc5c06b1aeb6
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C:\Users\Admin\AppData\Local\Temp\Qsedeqtedeooeo.tmpFilesize
797KB
MD524925b25552a7d8f1d3292071e545920
SHA1f786e1d40df30f6fed0301d60c823b655f2d6eac
SHA2569931503a3ab908d2840dae6a7cb77a5abc5e77cc67af405d1329b7dfc3fe800b
SHA512242dbf94b06e67fdf0aac29b2f38ce4929d156c42e2413565f203cda1fdb6458e34b26eeb0151fe4f1914432be28b16d648affa63f20c7b480c54e2d9360fb26
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C:\Users\Admin\AppData\Local\Temp\Qsedeqtedeooeo.tmpFilesize
797KB
MD524925b25552a7d8f1d3292071e545920
SHA1f786e1d40df30f6fed0301d60c823b655f2d6eac
SHA2569931503a3ab908d2840dae6a7cb77a5abc5e77cc67af405d1329b7dfc3fe800b
SHA512242dbf94b06e67fdf0aac29b2f38ce4929d156c42e2413565f203cda1fdb6458e34b26eeb0151fe4f1914432be28b16d648affa63f20c7b480c54e2d9360fb26
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memory/1292-153-0x00000000055A0000-0x00000000056E0000-memory.dmpFilesize
1.2MB
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memory/1292-147-0x0000000004C40000-0x0000000005365000-memory.dmpFilesize
7.1MB
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memory/1292-160-0x0000000004C40000-0x0000000005365000-memory.dmpFilesize
7.1MB
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memory/1292-157-0x0000000005619000-0x000000000561B000-memory.dmpFilesize
8KB
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memory/1292-152-0x00000000055A0000-0x00000000056E0000-memory.dmpFilesize
1.2MB
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memory/1292-151-0x00000000055A0000-0x00000000056E0000-memory.dmpFilesize
1.2MB
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memory/1292-142-0x0000000000000000-mapping.dmp
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memory/1292-150-0x00000000055A0000-0x00000000056E0000-memory.dmpFilesize
1.2MB
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memory/1292-149-0x00000000055A0000-0x00000000056E0000-memory.dmpFilesize
1.2MB
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memory/1292-148-0x00000000055A0000-0x00000000056E0000-memory.dmpFilesize
1.2MB
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memory/3556-155-0x0000023747AD0000-0x0000023747C10000-memory.dmpFilesize
1.2MB
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memory/3556-156-0x0000023747AD0000-0x0000023747C10000-memory.dmpFilesize
1.2MB
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memory/3556-159-0x0000023746100000-0x000002374632A000-memory.dmpFilesize
2.2MB
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memory/3556-158-0x0000000000D90000-0x0000000000FA9000-memory.dmpFilesize
2.1MB
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memory/3556-154-0x00007FF7CED56890-mapping.dmp
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memory/4968-145-0x00000000022C0000-0x00000000023F0000-memory.dmpFilesize
1.2MB
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memory/4968-146-0x0000000000400000-0x000000000053D000-memory.dmpFilesize
1.2MB
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memory/4968-141-0x0000000000400000-0x000000000053D000-memory.dmpFilesize
1.2MB
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memory/4968-140-0x00000000020C2000-0x00000000021B1000-memory.dmpFilesize
956KB
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memory/4968-137-0x0000000000000000-mapping.dmp
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memory/5084-134-0x0000000000400000-0x000000000045F000-memory.dmpFilesize
380KB
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memory/5084-135-0x0000000000609000-0x000000000061A000-memory.dmpFilesize
68KB
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memory/5084-132-0x0000000000609000-0x000000000061A000-memory.dmpFilesize
68KB
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memory/5084-133-0x00000000004D0000-0x00000000004D9000-memory.dmpFilesize
36KB
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memory/5084-136-0x0000000000400000-0x000000000045F000-memory.dmpFilesize
380KB