Analysis
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max time kernel
162s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
06/12/2022, 16:44
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
21 signatures
150 seconds
General
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Target
file.exe
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Size
377KB
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MD5
a5d420fb7dd9b9ade0bbb9139ad528fd
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SHA1
b0a89dfebff1201d11357bd256ae91db03449a3a
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SHA256
41215ccd49ddff76a98d7cec7d45959fbbfc097601b2c61989fc7106f20510d7
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SHA512
675c39ed8385152677dfaa4f79cae4c7843608bdd9d7a216a94e0b5654425d812d41e5877b76237669a099b82d5cf7be7f31144550c3d573201ebfc1abe23740
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SSDEEP
6144:qBTTRZjcLqGicN2cIP6VdYlPcIDWcoBlCIyYsbaV:qBZZ4WGiGzuO7cWCksb
Score
10/10
Malware Config
Signatures
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Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/636-133-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Blocklisted process makes network request 2 IoCs
flow pid Process 47 2400 rundll32.exe 48 2400 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 2596 6B9B.exe -
Loads dropped DLL 1 IoCs
pid Process 2400 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2400 set thread context of 1480 2400 rundll32.exe 92 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 3500 2596 WerFault.exe 83 -
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 21 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\Update Status 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\Update Revision 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\0\Identifier 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 value enumerated \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\ProcessorNameString 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\~MHz rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Component Information 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 Status rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Identifier 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\Configuration Data rundll32.exe -
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found -
Modifies registry class 30 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_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-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e003100000000008655b08d100054656d7000003a0009000400efbe0c5519998655b58d2e0000000000000000000000000000000000000000000000000064a62600540065006d007000000014000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2724 Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 636 file.exe 636 file.exe 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found 2724 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2724 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 636 file.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 2724 Process not Found Token: SeCreatePagefilePrivilege 2724 Process not Found Token: SeShutdownPrivilege 2724 Process not Found Token: SeCreatePagefilePrivilege 2724 Process not Found Token: SeShutdownPrivilege 2724 Process not Found Token: SeCreatePagefilePrivilege 2724 Process not Found Token: SeShutdownPrivilege 2724 Process not Found Token: SeCreatePagefilePrivilege 2724 Process not Found Token: SeShutdownPrivilege 2724 Process not Found Token: SeCreatePagefilePrivilege 2724 Process not Found Token: SeShutdownPrivilege 2724 Process not Found Token: SeCreatePagefilePrivilege 2724 Process not Found Token: SeShutdownPrivilege 2724 Process not Found Token: SeCreatePagefilePrivilege 2724 Process not Found Token: SeShutdownPrivilege 2724 Process not Found Token: SeCreatePagefilePrivilege 2724 Process not Found Token: SeShutdownPrivilege 2724 Process not Found Token: SeCreatePagefilePrivilege 2724 Process not Found -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1480 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2724 Process not Found 2724 Process not Found -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2724 wrote to memory of 2596 2724 Process not Found 83 PID 2724 wrote to memory of 2596 2724 Process not Found 83 PID 2724 wrote to memory of 2596 2724 Process not Found 83 PID 2596 wrote to memory of 2400 2596 6B9B.exe 85 PID 2596 wrote to memory of 2400 2596 6B9B.exe 85 PID 2596 wrote to memory of 2400 2596 6B9B.exe 85 PID 2400 wrote to memory of 1480 2400 rundll32.exe 92 PID 2400 wrote to memory of 1480 2400 rundll32.exe 92 PID 2400 wrote to memory of 1480 2400 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:636
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C:\Users\Admin\AppData\Local\Temp\6B9B.exeC:\Users\Admin\AppData\Local\Temp\6B9B.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2596 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Eshwsfeuryqqffi.tmp",Qiysidaatietut2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2400 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 172133⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:1480
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 5562⤵
- Program crash
PID:3500
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2596 -ip 25961⤵PID:1420
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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:2584
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.2MB
MD57c67cd61807076e96d0bc5a6f794968f
SHA12720e9ecf0f757a1bad96e149b5bdc69c42fe51b
SHA256a94b2533deba9a71ee47f193123d853a556398fa15327a275754c30231666b6b
SHA512947cf1b69e17c6741d8b44cd6273c9b64abccd7c543999f31c193c9fd7667637b93f866fb50b537304adaf34d2dfbefb97b829395ca758b639ca4f582e6c1376
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Filesize
1.2MB
MD57c67cd61807076e96d0bc5a6f794968f
SHA12720e9ecf0f757a1bad96e149b5bdc69c42fe51b
SHA256a94b2533deba9a71ee47f193123d853a556398fa15327a275754c30231666b6b
SHA512947cf1b69e17c6741d8b44cd6273c9b64abccd7c543999f31c193c9fd7667637b93f866fb50b537304adaf34d2dfbefb97b829395ca758b639ca4f582e6c1376
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Filesize
768KB
MD596655ec3277ef2e9ea4b5723f60f5b04
SHA1b29e9005cedc5e0d63981e59b05a12f006bd8640
SHA25636cb491e91dc40d4a24f25944c5dca41195e1e7eb9788028f72e38b08789616d
SHA512cb151e071426cba0ec433b4ff8b173a9e07fc922e2b9d9d9359bcd5367a79e5bb996e8afbbfe4dd11bde1a33724b7f70479ac248762f5c9d17f3e0d7d67c151c
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Filesize
768KB
MD596655ec3277ef2e9ea4b5723f60f5b04
SHA1b29e9005cedc5e0d63981e59b05a12f006bd8640
SHA25636cb491e91dc40d4a24f25944c5dca41195e1e7eb9788028f72e38b08789616d
SHA512cb151e071426cba0ec433b4ff8b173a9e07fc922e2b9d9d9359bcd5367a79e5bb996e8afbbfe4dd11bde1a33724b7f70479ac248762f5c9d17f3e0d7d67c151c