Analysis
- max time kernel
147s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
12/01/2023, 05:54
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
22 signatures
150 seconds
General
- Target file.exe
- Size 268KB
- Sample230112-glv5fsfc57
- SHA256 c3175de62d46638bcecbf45f1456c75203bd2bce8780b64f865dcbee9c993fed
- MD5 22d658966ef8856b19a18bd84485132e
- SHA1 e0821607ce5405d170a83c8f9e8a7c9a9e6d98d8
- SHA512 2b4cf026b8ede675ca56bb77142a53a45288623d96ca35d6f81a9a2809cdd65d723caa536721defc742bd0c7e9df8295544ca90884408a7a4d247eaa8e5428df
- SSDEEP 3072:sKXElF6Qm0LiLzP5W3KE52HshvAxkSn858CWFe/mm3SbsHEPx76b5qWbyajt:r10LEW3KgvAxk98PQ6sk5gq+
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/4920-133-0x0000000002E50000-0x0000000002E59000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 2 IoCs
flow pid Process 31 1756 rundll32.exe 53 1756 rundll32.exe - Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 4948 C96F.exe - Loads dropped DLL 1 IoCs
pid Process 1756 rundll32.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1756 set thread context of 3548 1756 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 116 4948 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 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 18 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\Identifier 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 enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 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\ProcessorNameString 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\~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\Update Revision 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\1\VendorIdentifier rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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\1\Update Status rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier 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\MRUListEx = 00000000ffffffff 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 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU 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 Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\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 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 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\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\Shell 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\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\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots 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 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\MRUListEx = 00000000ffffffff 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\MRUListEx = ffffffff 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 (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\Bags\1 Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_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 rundll32.exe 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\0\0\0\0 = 4e003100000000002c56d536100054656d7000003a0009000400efbe6b557d6c2c56da362e000000000000000000000000000000000000000000000000007b4e5400540065006d007000000014000000 Process not Found - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1032 Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4920 file.exe 4920 file.exe 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found 1032 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1032 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4920 file.exe - Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 1032 Process not Found Token: SeCreatePagefilePrivilege 1032 Process not Found Token: SeShutdownPrivilege 1032 Process not Found Token: SeCreatePagefilePrivilege 1032 Process not Found Token: SeShutdownPrivilege 1032 Process not Found Token: SeCreatePagefilePrivilege 1032 Process not Found Token: SeShutdownPrivilege 1032 Process not Found Token: SeCreatePagefilePrivilege 1032 Process not Found Token: SeShutdownPrivilege 1032 Process not Found Token: SeCreatePagefilePrivilege 1032 Process not Found Token: SeShutdownPrivilege 1032 Process not Found Token: SeCreatePagefilePrivilege 1032 Process not Found Token: SeShutdownPrivilege 1032 Process not Found Token: SeCreatePagefilePrivilege 1032 Process not Found Token: SeShutdownPrivilege 1032 Process not Found Token: SeCreatePagefilePrivilege 1032 Process not Found Token: SeShutdownPrivilege 1032 Process not Found Token: SeCreatePagefilePrivilege 1032 Process not Found - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3548 rundll32.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1032 Process not Found 1032 Process not Found - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1032 wrote to memory of 4948 1032 Process not Found 88 PID 1032 wrote to memory of 4948 1032 Process not Found 88 PID 1032 wrote to memory of 4948 1032 Process not Found 88 PID 4948 wrote to memory of 1756 4948 C96F.exe 90 PID 4948 wrote to memory of 1756 4948 C96F.exe 90 PID 4948 wrote to memory of 1756 4948 C96F.exe 90 PID 1756 wrote to memory of 3548 1756 rundll32.exe 93 PID 1756 wrote to memory of 3548 1756 rundll32.exe 93 PID 1756 wrote to memory of 3548 1756 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:4920
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C:\Users\Admin\AppData\Local\Temp\C96F.exeC:\Users\Admin\AppData\Local\Temp\C96F.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4948 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Qytyaworpiotpd.tmp",Edoqqdswdffqipe2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 237593⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:3548
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 5322⤵
- Program crash
PID:116
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4948 -ip 49481⤵PID:4216
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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:1580
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\C96F.exe
- Size 1.1MB
- SHA256 e2d0576bdb4bd674984ac54c6efc80fe15037802b8e1ed2b9d194a8e744e5f0c
- MD5 6d0612cec73c415e819d7f954c642797
- SHA1 f433990478114d51e2f06618667a33711d102a55
- SHA512 2dc7c46f1101b63e985aa9aadc1858c735ebbd303213468a171ea7ade4da87d6fcd56bc839f1feaec758dbb0358866f7aa9139ec8162a9159211c78eb9ea0b8f
- SSDEEP 24576:rjwNONyhkDdAS4aARdjWaB/COJ+2WXljdKNbP+cSqDR2f2O8:rMi2SYRJWw/Ck+PZUpPAMfR
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\C96F.exe
- Size 1.1MB
- SHA256 e2d0576bdb4bd674984ac54c6efc80fe15037802b8e1ed2b9d194a8e744e5f0c
- MD5 6d0612cec73c415e819d7f954c642797
- SHA1 f433990478114d51e2f06618667a33711d102a55
- SHA512 2dc7c46f1101b63e985aa9aadc1858c735ebbd303213468a171ea7ade4da87d6fcd56bc839f1feaec758dbb0358866f7aa9139ec8162a9159211c78eb9ea0b8f
- SSDEEP 24576:rjwNONyhkDdAS4aARdjWaB/COJ+2WXljdKNbP+cSqDR2f2O8:rMi2SYRJWw/Ck+PZUpPAMfR
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Qytyaworpiotpd.tmp
- Size 752KB
- SHA256 72021339c18f79141f9867c30616cbbdc517471e44d16bfe81063e5c7dba56c3
- MD5 710af73b2d7e92d33fac751318c08101
- SHA1 2208c96a528b1d96e18ae47ab274f303e4099fff
- SHA512 1f19138b8412b871ccf33ec351d28157b6571bc02cb1d338fc4c06bd77e9518bbdb3392d63b9bcdde2bd94746c232f90b4796363f83cecfd49e0470b6495ac1a
- SSDEEP 12288:PZEFnsZlCrXrr18a/OXOTIKTJ4CQxWvEr89F8wwNzS9WkJnro2:PZonsSr/1PjTIKl4PAvEr89F8ww1S9W
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Qytyaworpiotpd.tmp
- Size 752KB
- SHA256 72021339c18f79141f9867c30616cbbdc517471e44d16bfe81063e5c7dba56c3
- MD5 710af73b2d7e92d33fac751318c08101
- SHA1 2208c96a528b1d96e18ae47ab274f303e4099fff
- SHA512 1f19138b8412b871ccf33ec351d28157b6571bc02cb1d338fc4c06bd77e9518bbdb3392d63b9bcdde2bd94746c232f90b4796363f83cecfd49e0470b6495ac1a
- SSDEEP 12288:PZEFnsZlCrXrr18a/OXOTIKTJ4CQxWvEr89F8wwNzS9WkJnro2:PZonsSr/1PjTIKl4PAvEr89F8ww1S9W
- MD5 SHA1 SHA512 SSDEEP