Analysis
- 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
13/02/2023, 14:53
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
win10v2004-20221111-en
windows10-2004-x64
20 signatures
150 seconds
General
- Target file.exe
- Size 192KB
- Sample230213-r9cccsdh83
- SHA256 6feb91b9bb98df912f9f63b2197d9998c3e89b86bc25f3f9b69f2b0271224eb4
- MD5 d5e234a8248c68ea536dd36de2cfb175
- SHA1 186be9525cd8a585b14fe5a0e2807536db4528c3
- SHA512 d34595024caae08bc583e0218cbab3e95f10cd327d7550eff0f6bdf4a82537c4abd37000b36aebcb05767cffe1b99063874d74d9c23e41809ecf04e0755a85a0
- SSDEEP 3072:06BNwKpO4hjsYevzSR8TgSZBhz1MyJagx1tldd6Uv9ny3:0OLpn5sVvzSRQwW1ttVv9
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/1788-133-0x00000000006F0000-0x00000000006F9000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 1 IoCs
flow pid Process 80 2064 rundll32.exe - Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 2568 F92A.exe - Loads dropped DLL 1 IoCs
pid Process 2064 rundll32.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2064 set thread context of 4644 2064 rundll32.exe 90 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Checks processor information in registry 2 TTPs 24 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\VendorIdentifier rundll32.exe Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor 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\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\Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1 rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 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\ProcessorNameString 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\VendorIdentifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Previous Update Revision rundll32.exe Key value enumerated \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\Update Revision 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\Component Information rundll32.exe Key opened \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\Identifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Configuration Data 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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found - Modifies registry class 30 IoCs
description ioc Process 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 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found 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 Process not Found 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 = 4e003100000000004d56cf7e100054656d7000003a0009000400efbe6b557d6c4d56d07e2e00000000000000000000000000000000000000000000000000f9669b00540065006d007000000014000000 Process not Found 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 rundll32.exe 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\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found 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" Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found 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 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found 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" Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found 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 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found 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 Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2708 Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1788 file.exe 1788 file.exe 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2708 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1788 file.exe - Suspicious use of AdjustPrivilegeToken 30 IoCs
description pid Process Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found Token: SeShutdownPrivilege 2708 Process not Found Token: SeCreatePagefilePrivilege 2708 Process not Found - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4644 rundll32.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2708 Process not Found 2708 Process not Found - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2708 wrote to memory of 2568 2708 Process not Found 80 PID 2708 wrote to memory of 2568 2708 Process not Found 80 PID 2708 wrote to memory of 2568 2708 Process not Found 80 PID 2568 wrote to memory of 2064 2568 F92A.exe 87 PID 2568 wrote to memory of 2064 2568 F92A.exe 87 PID 2568 wrote to memory of 2064 2568 F92A.exe 87 PID 2064 wrote to memory of 4644 2064 rundll32.exe 90 PID 2064 wrote to memory of 4644 2064 rundll32.exe 90 PID 2064 wrote to memory of 4644 2064 rundll32.exe 90
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:1788
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C:\Users\Admin\AppData\Local\Temp\F92A.exeC:\Users\Admin\AppData\Local\Temp\F92A.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2568 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\Ruifriwreh.dll,start2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2064 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 141403⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:4644
-
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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:4084
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\F92A.exe
- Size 3.6MB
- SHA256 dd0b0e73613718c349ef44e8b2ba6650bff678a3a2d4e857bfc3d9369cbf0e2a
- MD5 ef5551169969f613798eb4ddb129b69a
- SHA1 e9e7107ddcfa1a6fc489b5c5871701dc6fdd9cde
- SHA512 2644c47fe214f4c95fca2e0afaedaecc98b531452e13b0fead35d3aab286d1b6ae42c313070c23d5092c242d299004f900e26b4930a86dbfe88b688ea3e7e448
- SSDEEP 98304:jtUwU7+c7ZuJiNlE6Unze625FZyloFHu85Tmi2:xUSc7ZuUNlEZiFJylSO85i7
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\F92A.exe
- Size 3.6MB
- SHA256 dd0b0e73613718c349ef44e8b2ba6650bff678a3a2d4e857bfc3d9369cbf0e2a
- MD5 ef5551169969f613798eb4ddb129b69a
- SHA1 e9e7107ddcfa1a6fc489b5c5871701dc6fdd9cde
- SHA512 2644c47fe214f4c95fca2e0afaedaecc98b531452e13b0fead35d3aab286d1b6ae42c313070c23d5092c242d299004f900e26b4930a86dbfe88b688ea3e7e448
- SSDEEP 98304:jtUwU7+c7ZuJiNlE6Unze625FZyloFHu85Tmi2:xUSc7ZuUNlEZiFJylSO85i7
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Ruifriwreh.dll
- Size 4.3MB
- SHA256 27d5cea3727354ed83476c97c269051e6df5df2bac1f33fec825b184bda062ab
- MD5 4c4dae877f5536e5118d51be2099bd27
- SHA1 644f4ec0641b16e7eeb8f89d6577c83c0ef63793
- SHA512 8fdbd404550ba97043dfd3727ac5895de862cb91612043858844e3911be0f5f7afc10ccfca52eb4978daa233ed05d31f374d432e943ae4b40179a7eabdd011bc
- SSDEEP 98304:XJIkmx5C4J/FM844K9g15wwRZwVVvg5U1yuXVdjcC0hyL:Skmm4J/m844Ft/1
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Ruifriwreh.dll
- Size 4.3MB
- SHA256 27d5cea3727354ed83476c97c269051e6df5df2bac1f33fec825b184bda062ab
- MD5 4c4dae877f5536e5118d51be2099bd27
- SHA1 644f4ec0641b16e7eeb8f89d6577c83c0ef63793
- SHA512 8fdbd404550ba97043dfd3727ac5895de862cb91612043858844e3911be0f5f7afc10ccfca52eb4978daa233ed05d31f374d432e943ae4b40179a7eabdd011bc
- SSDEEP 98304:XJIkmx5C4J/FM844K9g15wwRZwVVvg5U1yuXVdjcC0hyL:Skmm4J/m844Ft/1
- MD5 SHA1 SHA512 SSDEEP