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 18:35
Static task
static1
Behavioral task
behavioral1
Sample
489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exe
Resource
win7-20221111-en
General
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Target
489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exe
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Size
307KB
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MD5
ddf6f2c3455fb5f4738536262dd38afe
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SHA1
f800d1f0f3b4de746a0663a13a4c8846b041404e
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SHA256
489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55
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SHA512
21ffe2954f3c2e42f4400dd3619c9632a8800812c8b9450c5594568ade56e3490b20f4aa0a8684bc53578daa637e7b42055c0771ff20d34e11b91e143899870a
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SSDEEP
6144:Bl5ULz/YGW19tz8bG5geqDGO1oK/Fn77jcJ0iPvzpQ6rFiaI:BY3/YGk9mbG54DG4ocFnixnzpQ6rF
Malware Config
Signatures
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Detects Smokeloader packer 3 IoCs
Processes:
resource yara_rule behavioral2/memory/4500-133-0x00000000005F0000-0x00000000005F9000-memory.dmp family_smokeloader behavioral2/memory/4500-136-0x00000000005F0000-0x00000000005F9000-memory.dmp family_smokeloader behavioral2/memory/1108-164-0x0000000007ED0000-0x0000000007EE0000-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 38 3588 rundll32.exe 58 3588 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
F6B9.exepid process 4032 F6B9.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 3588 rundll32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
rundll32.exedescription pid process target process PID 3588 set thread context of 924 3588 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 1608 4032 WerFault.exe F6B9.exe -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exe -
Checks processor information in registry 2 TTPs 22 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor 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\ProcessorNameString rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet 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\Component Information rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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\1\Component Information rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 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\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\Identifier 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\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\FeatureSet rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe -
Processes:
description ioc process Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 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 -
Modifies registry class 30 IoCs
Processes:
rundll32.exedescription ioc process Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 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 (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\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 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU 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 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 Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 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 Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe 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\0\MRUListEx = 00000000ffffffff Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\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\0\0\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\0 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\0\0 = 4e003100000000009355909c100054656d7000003a0009000400efbe6b557d6c9355959c2e00000000000000000000000000000000000000000000000000aff35000540065006d007000000014000000 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe 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\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 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" 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\BagMRU\0\0\0 Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
pid process 1108 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exepid process 4500 489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exe 4500 489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exe 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 1108 -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
pid process 1108 -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exepid process 4500 489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
Processes:
description pid process Token: SeShutdownPrivilege 1108 Token: SeCreatePagefilePrivilege 1108 Token: SeShutdownPrivilege 1108 Token: SeCreatePagefilePrivilege 1108 Token: SeShutdownPrivilege 1108 Token: SeCreatePagefilePrivilege 1108 Token: SeShutdownPrivilege 1108 Token: SeCreatePagefilePrivilege 1108 Token: SeShutdownPrivilege 1108 Token: SeCreatePagefilePrivilege 1108 Token: SeShutdownPrivilege 1108 Token: SeCreatePagefilePrivilege 1108 Token: SeShutdownPrivilege 1108 Token: SeCreatePagefilePrivilege 1108 Token: SeShutdownPrivilege 1108 Token: SeCreatePagefilePrivilege 1108 Token: SeShutdownPrivilege 1108 Token: SeCreatePagefilePrivilege 1108 -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
rundll32.exepid process 924 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
pid process 1108 1108 -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
F6B9.exerundll32.exedescription pid process target process PID 1108 wrote to memory of 4032 1108 F6B9.exe PID 1108 wrote to memory of 4032 1108 F6B9.exe PID 1108 wrote to memory of 4032 1108 F6B9.exe PID 4032 wrote to memory of 3588 4032 F6B9.exe rundll32.exe PID 4032 wrote to memory of 3588 4032 F6B9.exe rundll32.exe PID 4032 wrote to memory of 3588 4032 F6B9.exe rundll32.exe PID 3588 wrote to memory of 924 3588 rundll32.exe rundll32.exe PID 3588 wrote to memory of 924 3588 rundll32.exe rundll32.exe PID 3588 wrote to memory of 924 3588 rundll32.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exe"C:\Users\Admin\AppData\Local\Temp\489437b24ecd011538918fbd80d3ad06dc2a2b63207dfe937bd3f6dcefe11a55.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4500
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C:\Users\Admin\AppData\Local\Temp\F6B9.exeC:\Users\Admin\AppData\Local\Temp\F6B9.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4032 -
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
PID:3588 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 141003⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:924
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4032 -s 5282⤵
- Program crash
PID:1608
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4032 -ip 40321⤵PID:4856
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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:3180
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.1MB
MD5f54e72ec43ba9b6d7dcb039cc2ad48f6
SHA14dd3e8194b67d5e594eee18101bee38a69d1343a
SHA256106a8c05bd4fe5807019f19c99c66dd65166442148ab41a482944a06740dca2f
SHA51250e425e51b2fe3a11e35499470c0cb9e571f82a1beff6acf21a061da53f278de362a7dd93b121408cf7a27421ff2a557e59c94943f9b3681dab7e023b64c7c3e
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Filesize
1.1MB
MD5f54e72ec43ba9b6d7dcb039cc2ad48f6
SHA14dd3e8194b67d5e594eee18101bee38a69d1343a
SHA256106a8c05bd4fe5807019f19c99c66dd65166442148ab41a482944a06740dca2f
SHA51250e425e51b2fe3a11e35499470c0cb9e571f82a1beff6acf21a061da53f278de362a7dd93b121408cf7a27421ff2a557e59c94943f9b3681dab7e023b64c7c3e
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Filesize
797KB
MD524925b25552a7d8f1d3292071e545920
SHA1f786e1d40df30f6fed0301d60c823b655f2d6eac
SHA2569931503a3ab908d2840dae6a7cb77a5abc5e77cc67af405d1329b7dfc3fe800b
SHA512242dbf94b06e67fdf0aac29b2f38ce4929d156c42e2413565f203cda1fdb6458e34b26eeb0151fe4f1914432be28b16d648affa63f20c7b480c54e2d9360fb26
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Filesize
797KB
MD524925b25552a7d8f1d3292071e545920
SHA1f786e1d40df30f6fed0301d60c823b655f2d6eac
SHA2569931503a3ab908d2840dae6a7cb77a5abc5e77cc67af405d1329b7dfc3fe800b
SHA512242dbf94b06e67fdf0aac29b2f38ce4929d156c42e2413565f203cda1fdb6458e34b26eeb0151fe4f1914432be28b16d648affa63f20c7b480c54e2d9360fb26