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
17/11/2022, 11:23
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
win10v2004-20220812-en
windows10-2004-x64
21 signatures
150 seconds
General
- Target file.exe
- Size 164KB
- Sample221117-ng577aec43
- SHA256 3eb7528f5910c05e73fa632aebcde1e2a6a1a9d5be83924eef17336403d1b183
- MD5 bf5053b9cfbec74ce5270251f50b8b7b
- SHA1 560b2f34715397ada97722093cf3e500fd7cdbc2
- SHA512 94f5d45d3b923586857fa8e0e0b657f64d8d83dbffe1ebb666826e9e60b11b45a703f518c974bb219d3b6185b4243e8f8c7fc9c52e675722f88699740466bde1
- SSDEEP 3072:o8akam0a8T8TmAg5uBRVaRT+ZSeM8kQQT7k3lNDS6Ge/VivD:rT0JITrjorLQnVNDS69
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/4016-133-0x0000000000720000-0x0000000000729000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 3 IoCs
flow pid Process 46 1068 rundll32.exe 48 1068 rundll32.exe 84 1068 rundll32.exe - Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 3676 6784.exe - Loads dropped DLL 1 IoCs
pid Process 1068 rundll32.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1068 set thread context of 2000 1068 rundll32.exe 92 - 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 3080 3676 WerFault.exe 87 - 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 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\ProcessorNameString 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\Platform Specific Field 1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Identifier 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\0\Platform Specific Field 1 rundll32.exe Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor 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\~MHz 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\Configuration Data rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz 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\1\VendorIdentifier 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\ProcessorNameString rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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\FeatureSet 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\Previous Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Previous Update Revision rundll32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found - Modifies registry class 30 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e003100000000007155fb62100054656d7000003a0009000400efbe0c551d9c715501632e00000000000000000000000000000000000000000000000000681b2501540065006d007000000014000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" Process not Found - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2824 Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4016 file.exe 4016 file.exe 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2824 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4016 file.exe - Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2000 rundll32.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2824 Process not Found 2824 Process not Found - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2824 wrote to memory of 3676 2824 Process not Found 87 PID 2824 wrote to memory of 3676 2824 Process not Found 87 PID 2824 wrote to memory of 3676 2824 Process not Found 87 PID 3676 wrote to memory of 1068 3676 6784.exe 88 PID 3676 wrote to memory of 1068 3676 6784.exe 88 PID 3676 wrote to memory of 1068 3676 6784.exe 88 PID 1068 wrote to memory of 2000 1068 rundll32.exe 92 PID 1068 wrote to memory of 2000 1068 rundll32.exe 92 PID 1068 wrote to memory of 2000 1068 rundll32.exe 92
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:4016
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C:\Users\Admin\AppData\Local\Temp\6784.exeC:\Users\Admin\AppData\Local\Temp\6784.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3676 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Qieppoeedtppeh.tmp",Risetpqpdpi2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1068 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 190823⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:2000
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3676 -s 5282⤵
- Program crash
PID:3080
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3676 -ip 36761⤵PID:1852
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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:1404
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\6784.exe
- Size 1.0MB
- SHA256 7c513ee9591046ce9af5fff79facd435367f434fc195df21b4b06353bf0cf4d0
- MD5 dcb432b633c9cf5c34fd4a019bce6807
- SHA1 3e9f20b7379830b8d1402a6a7dd322084299f73b
- SHA512 e68ec7f1aef05802158ec0f50dcf8bd4ae5c0e55833f803cdc218873216c97aa3eb9496515a697eac92d15cb229a652b74fe7cd71112d0007a206445b3a50d4b
- SSDEEP 24576:ZG7M0vyq4YZR0rMSdESSTiLwv5vWKL8jClc0BfJtMk:ZG8qnZ4dYTiLwUc8jClr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\6784.exe
- Size 1.0MB
- SHA256 7c513ee9591046ce9af5fff79facd435367f434fc195df21b4b06353bf0cf4d0
- MD5 dcb432b633c9cf5c34fd4a019bce6807
- SHA1 3e9f20b7379830b8d1402a6a7dd322084299f73b
- SHA512 e68ec7f1aef05802158ec0f50dcf8bd4ae5c0e55833f803cdc218873216c97aa3eb9496515a697eac92d15cb229a652b74fe7cd71112d0007a206445b3a50d4b
- SSDEEP 24576:ZG7M0vyq4YZR0rMSdESSTiLwv5vWKL8jClc0BfJtMk:ZG8qnZ4dYTiLwUc8jClr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Qieppoeedtppeh.tmp
- Size 802KB
- SHA256 a5555d31a4f07e83f86100ce6f8242feccaa5157b10ccef2b48ab13dfac06ffd
- MD5 759e32c67ea3441582e9573471496f41
- SHA1 c8e8378787184363d256b91417e60f09ccb4258d
- SHA512 5c5d8f5b0aca6a68ea7bf7a30a7fe8afc204514e76cf13c6d23eb0e2bcc6925dd36d65fde81a893a338ec61dfb5f0c2da1e0c4cf1c52856e5df9511ceca741d4
- SSDEEP 12288:s62GT1lywI5iwASQKh1lWd7EwABdUmXDbcg+n2YGtO1Ov1xM3rw7ra6omqV:Fjl2iwaEwSD12O9H5dI
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Qieppoeedtppeh.tmp
- Size 802KB
- SHA256 a5555d31a4f07e83f86100ce6f8242feccaa5157b10ccef2b48ab13dfac06ffd
- MD5 759e32c67ea3441582e9573471496f41
- SHA1 c8e8378787184363d256b91417e60f09ccb4258d
- SHA512 5c5d8f5b0aca6a68ea7bf7a30a7fe8afc204514e76cf13c6d23eb0e2bcc6925dd36d65fde81a893a338ec61dfb5f0c2da1e0c4cf1c52856e5df9511ceca741d4
- SSDEEP 12288:s62GT1lywI5iwASQKh1lWd7EwABdUmXDbcg+n2YGtO1Ov1xM3rw7ra6omqV:Fjl2iwaEwSD12O9H5dI
- MD5 SHA1 SHA512 SSDEEP