Analysis
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max time kernel
150s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05/01/2023, 13:35
Static task
static1
Behavioral task
behavioral1
Sample
84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
21 signatures
150 seconds
General
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Target
84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603.exe
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Size
214KB
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MD5
9306a2b60641cd61af22ec5e8ef751f6
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SHA1
9d0a190a5b2660f86f1d2efa9a42c65fe23f3d46
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SHA256
84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603
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SHA512
b2da1d2b608ec57a4364d8bd2576835d9c7e21d825e657c42271384ff57046658a300a4bb5bd506f588d95e66faf68e921b4ba927adc36e831acb32def5fb12c
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SSDEEP
3072:aX2C217HiL88RZIt+j52YeS64jCvx7TkhfVXMIzSYwNFBfH8KDmcTd1ZWl:6zL8GIt+kBSleqZKMGNFB/8KH3Z
Score
10/10
Malware Config
Signatures
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Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral1/memory/4884-133-0x0000000002D30000-0x0000000002D39000-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 48 1280 rundll32.exe 50 1280 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 1200 36B0.exe -
Loads dropped DLL 1 IoCs
pid Process 1280 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1280 set thread context of 4084 1280 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 3640 1200 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 84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603.exe -
Checks processor information in registry 2 TTPs 23 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Configuration Data 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\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\Identifier 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\VendorIdentifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Component Information rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor 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\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\VendorIdentifier rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Previous Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Status rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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\Update Revision 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 -
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 Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe 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\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\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 = 14001f44471a0359723fa74489c55595fe6b30ee0000 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\NodeSlots rundll32.exe 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\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\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 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\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\NodeSlots = 02 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\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 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\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\MRUListEx = 00000000ffffffff 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 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 Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU 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 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 = 4e0031000000000025569474100054656d7000003a0009000400efbe6b55586c255699742e00000000000000000000000000000000000000000000000000f6ba1d00540065006d007000000014000000 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 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 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\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2752 Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4884 84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603.exe 4884 84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603.exe 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found 2752 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2752 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4884 84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 2752 Process not Found Token: SeCreatePagefilePrivilege 2752 Process not Found Token: SeShutdownPrivilege 2752 Process not Found Token: SeCreatePagefilePrivilege 2752 Process not Found Token: SeShutdownPrivilege 2752 Process not Found Token: SeCreatePagefilePrivilege 2752 Process not Found Token: SeShutdownPrivilege 2752 Process not Found Token: SeCreatePagefilePrivilege 2752 Process not Found Token: SeShutdownPrivilege 2752 Process not Found Token: SeCreatePagefilePrivilege 2752 Process not Found Token: SeShutdownPrivilege 2752 Process not Found Token: SeCreatePagefilePrivilege 2752 Process not Found Token: SeShutdownPrivilege 2752 Process not Found Token: SeCreatePagefilePrivilege 2752 Process not Found Token: SeShutdownPrivilege 2752 Process not Found Token: SeCreatePagefilePrivilege 2752 Process not Found Token: SeShutdownPrivilege 2752 Process not Found Token: SeCreatePagefilePrivilege 2752 Process not Found -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4084 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2752 Process not Found 2752 Process not Found -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2752 wrote to memory of 1200 2752 Process not Found 88 PID 2752 wrote to memory of 1200 2752 Process not Found 88 PID 2752 wrote to memory of 1200 2752 Process not Found 88 PID 1200 wrote to memory of 1280 1200 36B0.exe 89 PID 1200 wrote to memory of 1280 1200 36B0.exe 89 PID 1200 wrote to memory of 1280 1200 36B0.exe 89 PID 1280 wrote to memory of 4084 1280 rundll32.exe 92 PID 1280 wrote to memory of 4084 1280 rundll32.exe 92 PID 1280 wrote to memory of 4084 1280 rundll32.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603.exe"C:\Users\Admin\AppData\Local\Temp\84db62dd17380f7fe98fca386304e6d4a999eb777ec8cb9eb48a9d153ff96603.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4884
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C:\Users\Admin\AppData\Local\Temp\36B0.exeC:\Users\Admin\AppData\Local\Temp\36B0.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1200 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Pyupydeoe.tmp",Uprsprhaot2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1280 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 239753⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:4084
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1200 -s 4722⤵
- Program crash
PID:3640
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1200 -ip 12001⤵PID:3856
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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:3500
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1015KB
MD504ff5faeb7a51088151552989307e906
SHA12b734f5b28972a3902d403995df42e1427668a3c
SHA25699aeac87c50eb7328b928de60ea3682497179d990d9fe89077d886b9a03f4f97
SHA512e6321b35076a88737c1de1c189b85dab70fd606d8eebe756f1c00363a82d240b01f4c2e7ba94d1933b2759719cd0e6364b83a57d37b8abfee27877cc06f39357
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Filesize
1015KB
MD504ff5faeb7a51088151552989307e906
SHA12b734f5b28972a3902d403995df42e1427668a3c
SHA25699aeac87c50eb7328b928de60ea3682497179d990d9fe89077d886b9a03f4f97
SHA512e6321b35076a88737c1de1c189b85dab70fd606d8eebe756f1c00363a82d240b01f4c2e7ba94d1933b2759719cd0e6364b83a57d37b8abfee27877cc06f39357
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Filesize
784KB
MD5c50c2f17112b6c6b0892cb2c1f502108
SHA13dd1444384bf790f5aa90ae95ef7745fa4cfaf72
SHA25620dc61c5456ea5756f432aebecf74660acebf5ace0f7c8d1b360757ed79075d8
SHA512bfbfc3a13816a12e25c373f6739215b9dff559fecfdf26c3358a452bdc833b6eaa64bbae316f4b29b9e9ce802e9f50c66b533c8c3c1b372025a7f0b7d8b452f1
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Filesize
784KB
MD5c50c2f17112b6c6b0892cb2c1f502108
SHA13dd1444384bf790f5aa90ae95ef7745fa4cfaf72
SHA25620dc61c5456ea5756f432aebecf74660acebf5ace0f7c8d1b360757ed79075d8
SHA512bfbfc3a13816a12e25c373f6739215b9dff559fecfdf26c3358a452bdc833b6eaa64bbae316f4b29b9e9ce802e9f50c66b533c8c3c1b372025a7f0b7d8b452f1