Analysis
- max time kernel
150s - max time network
153s - 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, 15:25
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
22 signatures
150 seconds
General
- Target file.exe
- Size 302KB
- Sample221219-stlfrsfc89
- SHA256 77606880d3aa4d3d94c6ef8192e9f71c7a30ae5e72e11b4d5b4a582db8f686b9
- MD5 f96e882f74e9468eb7a66dbe3621f884
- SHA1 1c7cad44405e9118ef4f4c38423ddd6555900ac0
- SHA512 68c801016dedb93bc8dc7d09cf70c74aa93a61f0d881f70b96543dc4407cf4510ffa0bba6e6f92d587eec66d73ce864a22809de612f362871ee00fb535dee4d5
- SSDEEP 6144:INLO/MWScgECCthSFkUqPnxz+3ng+E49HwchLP3i:INK/F7dCCguJwnVZH9P3
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/3468-134-0x0000000002180000-0x0000000002189000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 3 IoCs
flow pid Process 38 2660 rundll32.exe 40 2660 rundll32.exe 63 2660 rundll32.exe - Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 216 F532.exe - Loads dropped DLL 1 IoCs
pid Process 2660 rundll32.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2660 set thread context of 1776 2660 rundll32.exe 93 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
pid pid_target Process procid_target 3228 216 WerFault.exe 89 - 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 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 26 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Update Revision 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\VendorIdentifier 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\Configuration Data rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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\Previous Update Revision rundll32.exe Key opened \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\0\Platform Specific Field 1 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\Configuration Data rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Previous Update Revision 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 queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision 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\Component Information 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\Platform Specific Field 1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Identifier rundll32.exe Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found 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 - Modifies registry class 30 IoCs
description ioc Process 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 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 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 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\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\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\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\0\0\0\0\MRUListEx = ffffffff 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 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\Bags\1\Shell Process not Found Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings 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 rundll32.exe 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\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\NodeSlots = 02 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\Bags\1 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 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 = 4e0031000000000093553983100054656d7000003a0009000400efbe6b55586c935540832e00000000000000000000000000000000000000000000000000392ade00540065006d007000000014000000 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\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 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 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\MRUListEx = 00000000ffffffff Process not Found - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2176 Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3468 file.exe 3468 file.exe 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found 2176 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2176 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3468 file.exe - Suspicious use of AdjustPrivilegeToken 16 IoCs
description pid Process Token: SeShutdownPrivilege 2176 Process not Found Token: SeCreatePagefilePrivilege 2176 Process not Found Token: SeShutdownPrivilege 2176 Process not Found Token: SeCreatePagefilePrivilege 2176 Process not Found Token: SeShutdownPrivilege 2176 Process not Found Token: SeCreatePagefilePrivilege 2176 Process not Found Token: SeShutdownPrivilege 2176 Process not Found Token: SeCreatePagefilePrivilege 2176 Process not Found Token: SeShutdownPrivilege 2176 Process not Found Token: SeCreatePagefilePrivilege 2176 Process not Found Token: SeShutdownPrivilege 2176 Process not Found Token: SeCreatePagefilePrivilege 2176 Process not Found Token: SeShutdownPrivilege 2176 Process not Found Token: SeCreatePagefilePrivilege 2176 Process not Found Token: SeShutdownPrivilege 2176 Process not Found Token: SeCreatePagefilePrivilege 2176 Process not Found - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1776 rundll32.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2176 Process not Found 2176 Process not Found - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2176 wrote to memory of 216 2176 Process not Found 89 PID 2176 wrote to memory of 216 2176 Process not Found 89 PID 2176 wrote to memory of 216 2176 Process not Found 89 PID 216 wrote to memory of 2660 216 F532.exe 90 PID 216 wrote to memory of 2660 216 F532.exe 90 PID 216 wrote to memory of 2660 216 F532.exe 90 PID 2660 wrote to memory of 1776 2660 rundll32.exe 93 PID 2660 wrote to memory of 1776 2660 rundll32.exe 93 PID 2660 wrote to memory of 1776 2660 rundll32.exe 93
Processes
-
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
PID:3468
-
C:\Users\Admin\AppData\Local\Temp\F532.exeC:\Users\Admin\AppData\Local\Temp\F532.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:216 -
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:2660 -
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:1776
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 216 -s 5402⤵
- Program crash
PID:3228
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 216 -ip 2161⤵PID:396
-
C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:2420
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\F532.exe
- Size 1.1MB
- SHA256 37b5287743c5de46c17952589bdc3632a5083450f799f6c8f314afa613f4ae34
- MD5 8f4070594e2008388c46be164a59d9ae
- SHA1 bbbfde91f46f1bbfc8139bdd1d44e7a22e185b69
- SHA512 2897cdbe665f83cebe00fbffa91a0674c756a12fa8ff2da0dba32fb7076bf286cc0d1e17f8ab50dcbc456365ef85caca56b318d9bf50e32b0ee1e1cb3b7ebfb8
- SSDEEP 24576:D4MwERrcsuCg2luv/4QwWU7kTV4t83ZUcwFP:MhMcsBl2whOHUDFP
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\F532.exe
- Size 1.1MB
- SHA256 37b5287743c5de46c17952589bdc3632a5083450f799f6c8f314afa613f4ae34
- MD5 8f4070594e2008388c46be164a59d9ae
- SHA1 bbbfde91f46f1bbfc8139bdd1d44e7a22e185b69
- SHA512 2897cdbe665f83cebe00fbffa91a0674c756a12fa8ff2da0dba32fb7076bf286cc0d1e17f8ab50dcbc456365ef85caca56b318d9bf50e32b0ee1e1cb3b7ebfb8
- SSDEEP 24576:D4MwERrcsuCg2luv/4QwWU7kTV4t83ZUcwFP:MhMcsBl2whOHUDFP
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Ipoetwsuqhd.tmp
- Size 726KB
- SHA256 2c7500ac5ebb0116e640747b8a5f0a2648f7d2f5f516ebb398b864cccc626fbe
- MD5 6ea8a6cc5fed6c664df1b3ef7c56b55d
- SHA1 6b244d708706441095ae97294928967ddf28432b
- SHA512 4a328a66df407e4c9fa230287104771ea3b5dd8265d60314797426101a8be19d13bc57de2388f0f90b20ada82d950e156ef4267c029080a6254b80eefd8b8741
- SSDEEP 12288:UYc6zyKflM0Xtlu1C4M8Vwd5rt/m3LIaJU+SUCxDot:LcFQlM0X3ugaOrw3LLJjXCxst
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Ipoetwsuqhd.tmp
- Size 726KB
- SHA256 2c7500ac5ebb0116e640747b8a5f0a2648f7d2f5f516ebb398b864cccc626fbe
- MD5 6ea8a6cc5fed6c664df1b3ef7c56b55d
- SHA1 6b244d708706441095ae97294928967ddf28432b
- SHA512 4a328a66df407e4c9fa230287104771ea3b5dd8265d60314797426101a8be19d13bc57de2388f0f90b20ada82d950e156ef4267c029080a6254b80eefd8b8741
- SSDEEP 12288:UYc6zyKflM0Xtlu1C4M8Vwd5rt/m3LIaJU+SUCxDot:LcFQlM0X3ugaOrw3LLJjXCxst
- MD5 SHA1 SHA512 SSDEEP