Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
14/11/2022, 23:40
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
21 signatures
150 seconds
General
- Target file.exe
- Size 233KB
- Sample221114-3nvglaae4x
- SHA256 ec0c9121d9a863d4a3d66404ff5b07a7604a0fe74583e2193a6d0ec057eec7f6
- MD5 7fa3555f7f64cebeee75bf3502929538
- SHA1 c86a00177c1aab4474ca93801722b058a86865ec
- SHA512 61875b4a8e1deae82c6bc9d5ee684d460d53dbe8dca4fb26564da9a07712200fe5d312e0c64bd2f5b2dbe0699f3b77e6da58d37bacf71e3c775f1482fe040cd4
- SSDEEP 3072:SXOaP72sWLVUInIjGJluU/78SJ53fpUa7pDXaMU/G364:S3XWLVzIjeZDHRUu6+K
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/2120-133-0x0000000002570000-0x0000000002579000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 2 IoCs
flow pid Process 50 4240 rundll32.exe 65 4240 rundll32.exe - Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 3372 2FD.exe - Loads dropped DLL 1 IoCs
pid Process 4240 rundll32.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4240 set thread context of 4712 4240 rundll32.exe 95 - 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 3064 3372 WerFault.exe 84 - 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 19 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\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\1\FeatureSet 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\Platform Specific Field 1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\FeatureSet 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\1\Previous Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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\VendorIdentifier rundll32.exe Key opened \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\0\Configuration Data 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\Update Status rundll32.exe -
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found - Modifies registry class 31 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e003100000000006f552505100054656d7000003a0009000400efbe0c55ec986f5529052e00000000000000000000000000000000000000000000000000ca080700540065006d007000000014000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_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 Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2180 Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2120 file.exe 2120 file.exe 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2180 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2120 file.exe - Suspicious use of AdjustPrivilegeToken 32 IoCs
description pid Process Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found - Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 4712 rundll32.exe 2180 Process not Found 2180 Process not Found - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2180 Process not Found 2180 Process not Found - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2180 wrote to memory of 3372 2180 Process not Found 84 PID 2180 wrote to memory of 3372 2180 Process not Found 84 PID 2180 wrote to memory of 3372 2180 Process not Found 84 PID 3372 wrote to memory of 4240 3372 2FD.exe 87 PID 3372 wrote to memory of 4240 3372 2FD.exe 87 PID 3372 wrote to memory of 4240 3372 2FD.exe 87 PID 4240 wrote to memory of 4712 4240 rundll32.exe 95 PID 4240 wrote to memory of 4712 4240 rundll32.exe 95 PID 4240 wrote to memory of 4712 4240 rundll32.exe 95
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
PID:2120
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C:\Users\Admin\AppData\Local\Temp\2FD.exeC:\Users\Admin\AppData\Local\Temp\2FD.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3372 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\Hefurhy.dll,start2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:4240 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 162993⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:4712
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 5122⤵
- Program crash
PID:3064
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3372 -ip 33721⤵PID:5088
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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:3524
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\2FD.exe
- Size 2.9MB
- SHA256 9b1367c21ac976044f78e43442fa40d612dadc6412077624dd262b32ac24f67d
- MD5 c8496b60aacba619f83eadcfccabbd6e
- SHA1 87e3589061ae5ac3a313f4592fa5b59c4e711344
- SHA512 e25a2705c3dfa6c6983f0c375499315f3ad24bd9f5c009333a6f1bc80d5175e85542f5545e4ab2d0c59fc6246c6fc062cd633810b61fedb81f09c10ab3f243d2
- SSDEEP 49152:Miaa4MAX/hQGrRL9288E9ZyaTTvJkVLQ/sFfShFpMOHLtHXV695J+XK9azgAbv:MiaaiXpP288Eqk4Lz+pBZly61
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\2FD.exe
- Size 2.9MB
- SHA256 9b1367c21ac976044f78e43442fa40d612dadc6412077624dd262b32ac24f67d
- MD5 c8496b60aacba619f83eadcfccabbd6e
- SHA1 87e3589061ae5ac3a313f4592fa5b59c4e711344
- SHA512 e25a2705c3dfa6c6983f0c375499315f3ad24bd9f5c009333a6f1bc80d5175e85542f5545e4ab2d0c59fc6246c6fc062cd633810b61fedb81f09c10ab3f243d2
- SSDEEP 49152:Miaa4MAX/hQGrRL9288E9ZyaTTvJkVLQ/sFfShFpMOHLtHXV695J+XK9azgAbv:MiaaiXpP288Eqk4Lz+pBZly61
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Hefurhy.dll
- Size 4.3MB
- SHA256 d7842f5a2f2468a8adfcb560db8531e406c30356f5541c882cd085512d308df6
- MD5 ffcd598a2df25aef790921cc217343b7
- SHA1 bd6dee62090d839736151eaf59cf309a3ebd391f
- SHA512 d47ca4d891eb2cbe52dc7072d0ee0427a34b07b4758ff1dde65e453e88ff69367395712b8e8de20b89393177365cb0c119b16e6af187f9ecd9387f1df09e3840
- SSDEEP 98304:EUIXwM4ngoq2G+3xqvcnBQX5Id/8cwiS:EUbM4nPI+3xKjX5Id/BwP
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Hefurhy.dll
- Size 4.3MB
- SHA256 d7842f5a2f2468a8adfcb560db8531e406c30356f5541c882cd085512d308df6
- MD5 ffcd598a2df25aef790921cc217343b7
- SHA1 bd6dee62090d839736151eaf59cf309a3ebd391f
- SHA512 d47ca4d891eb2cbe52dc7072d0ee0427a34b07b4758ff1dde65e453e88ff69367395712b8e8de20b89393177365cb0c119b16e6af187f9ecd9387f1df09e3840
- SSDEEP 98304:EUIXwM4ngoq2G+3xqvcnBQX5Id/8cwiS:EUbM4nPI+3xKjX5Id/BwP
- MD5 SHA1 SHA512 SSDEEP