Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
09/01/2023, 17:10
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
win10v2004-20220901-en
windows10-2004-x64
22 signatures
150 seconds
General
- Target file.exe
- Size 326KB
- Sample230109-vpp99seh95
- SHA256 96907f9fcbc45b8561600ae72352e02bcd6a74d64cbfc4e41e2d22d4f67c6b32
- MD5 2b92dc0582023ee223641add22d9b81e
- SHA1 fc942184a208b5e7b4a789949c83a0a9d2e8ea47
- SHA512 9f4f3bf330f69953947af074eed79efe519a745e01ff6c1e50f32b577f65f6c07d16a96aae459e3c98f1e4b9a97b39bbc2cf8c11e810da7c7d80322dd3a82552
- SSDEEP 6144:OsbajYCd5yYTsvH985OlD/w+THaegmf/W:OsbiH35i/Xe8
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/3248-133-0x0000000000520000-0x0000000000529000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 2 IoCs
flow pid Process 41 1748 rundll32.exe 60 1748 rundll32.exe - Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 3160 6EA8.exe - Loads dropped DLL 1 IoCs
pid Process 1748 rundll32.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1748 set thread context of 4520 1748 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 3748 3160 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 20 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\Component Information rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\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\Previous Update Revision 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\~MHz 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 queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier 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\VendorIdentifier rundll32.exe Key enumerated \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 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\Configuration Data 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\ProcessorNameString rundll32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found - Modifies registry class 30 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e0031000000000029565c89100054656d7000003a0009000400efbe21550a58295662892e000000000000000000000000000000000000000000000000002da51a01540065006d007000000014000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_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 Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2440 Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3248 file.exe 3248 file.exe 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found 2440 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2440 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3248 file.exe - Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 2440 Process not Found Token: SeCreatePagefilePrivilege 2440 Process not Found Token: SeShutdownPrivilege 2440 Process not Found Token: SeCreatePagefilePrivilege 2440 Process not Found Token: SeShutdownPrivilege 2440 Process not Found Token: SeCreatePagefilePrivilege 2440 Process not Found Token: SeShutdownPrivilege 2440 Process not Found Token: SeCreatePagefilePrivilege 2440 Process not Found Token: SeShutdownPrivilege 2440 Process not Found Token: SeCreatePagefilePrivilege 2440 Process not Found Token: SeShutdownPrivilege 2440 Process not Found Token: SeCreatePagefilePrivilege 2440 Process not Found Token: SeShutdownPrivilege 2440 Process not Found Token: SeCreatePagefilePrivilege 2440 Process not Found Token: SeShutdownPrivilege 2440 Process not Found Token: SeCreatePagefilePrivilege 2440 Process not Found Token: SeShutdownPrivilege 2440 Process not Found Token: SeCreatePagefilePrivilege 2440 Process not Found - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4520 rundll32.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2440 Process not Found 2440 Process not Found - Suspicious use of UnmapMainImage 1 IoCs
pid Process 2440 Process not Found - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2440 wrote to memory of 3160 2440 Process not Found 89 PID 2440 wrote to memory of 3160 2440 Process not Found 89 PID 2440 wrote to memory of 3160 2440 Process not Found 89 PID 3160 wrote to memory of 1748 3160 6EA8.exe 90 PID 3160 wrote to memory of 1748 3160 6EA8.exe 90 PID 3160 wrote to memory of 1748 3160 6EA8.exe 90 PID 1748 wrote to memory of 4520 1748 rundll32.exe 93 PID 1748 wrote to memory of 4520 1748 rundll32.exe 93 PID 1748 wrote to memory of 4520 1748 rundll32.exe 93
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:3248
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C:\Users\Admin\AppData\Local\Temp\6EA8.exeC:\Users\Admin\AppData\Local\Temp\6EA8.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3160 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Wtfoiq.tmp",Iyidwoiowsw2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1748 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 156113⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:4520
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 5602⤵
- Program crash
PID:3748
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3160 -ip 31601⤵PID:3008
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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:4524
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\6EA8.exe
- Size 1.1MB
- SHA256 9733e95222dcdead57f37f45bb11cec43cb8a477ec3bb4ed70a347037d044677
- MD5 be951d2a4ac712db7eb4912097ca65bd
- SHA1 b38f397459219a9c9f6bf4bc5a3422600c7186f4
- SHA512 922e4bb5254554f0eb2f77ced8d7acc862df1eee7361416aeddd24c5a93340f6db354be244552942411c49c747405ae28ad18e188fcb4d186381010112eef307
- SSDEEP 24576:Toguj+T+B2mqnbXSvvtyNcixFk/eeID6FTtpjYVv5/gIJ5PGO5Yll:TogNT+BhCrUou/e/6FTvQxtPR5
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\6EA8.exe
- Size 1.1MB
- SHA256 9733e95222dcdead57f37f45bb11cec43cb8a477ec3bb4ed70a347037d044677
- MD5 be951d2a4ac712db7eb4912097ca65bd
- SHA1 b38f397459219a9c9f6bf4bc5a3422600c7186f4
- SHA512 922e4bb5254554f0eb2f77ced8d7acc862df1eee7361416aeddd24c5a93340f6db354be244552942411c49c747405ae28ad18e188fcb4d186381010112eef307
- SSDEEP 24576:Toguj+T+B2mqnbXSvvtyNcixFk/eeID6FTtpjYVv5/gIJ5PGO5Yll:TogNT+BhCrUou/e/6FTvQxtPR5
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Wtfoiq.tmp
- Size 714KB
- SHA256 d0ac0e9021c6e231c60256198309b7f72ce4c5e772cf343b5456c2ce0664b9bd
- MD5 9dd70d24b2657a9254b9fd536a4d06d5
- SHA1 348a1d210d7c4daef8ecdb692eadf3975971e8ee
- SHA512 dee5bfe83fdf196c78ee255e50a25994220ce9ecac22eb24323df70e668714d7a810b67ddace7809d9d7e2160a35c4603deedb64b1660d82dde58586c34d2ab6
- SSDEEP 12288:V8jfuQWjK3lYRk52K/iAkyshv2zjTywBZmAUYiUy+Cz1yVBMjiItbNFNIJOI/rFu:V8DWK3l4kkEPjfywBLTvFFMjiItbNrdr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Wtfoiq.tmp
- Size 714KB
- SHA256 d0ac0e9021c6e231c60256198309b7f72ce4c5e772cf343b5456c2ce0664b9bd
- MD5 9dd70d24b2657a9254b9fd536a4d06d5
- SHA1 348a1d210d7c4daef8ecdb692eadf3975971e8ee
- SHA512 dee5bfe83fdf196c78ee255e50a25994220ce9ecac22eb24323df70e668714d7a810b67ddace7809d9d7e2160a35c4603deedb64b1660d82dde58586c34d2ab6
- SSDEEP 12288:V8jfuQWjK3lYRk52K/iAkyshv2zjTywBZmAUYiUy+Cz1yVBMjiItbNFNIJOI/rFu:V8DWK3l4kkEPjfywBLTvFFMjiItbNrdr
- MD5 SHA1 SHA512 SSDEEP