Analysis
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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
03-01-2023 07:42
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
General
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Target
file.exe
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Size
334KB
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MD5
4757415db2cb6f0c2fe7deb0cc2640a7
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SHA1
f28b5fbc920703bafe414d4e4ce6c9e4965963d0
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SHA256
60fe43fe56681f11075849841523ef3ba8e20a68fb0191f8d31b0e12ac94d00f
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SHA512
9f98d8963bd9afd1e6d66fe3db2c7b34e329456c9e3db7785f7917a22b17fcb44f457d8ba3a1cc2eb5042c65bca4c367b9b4bd4bd113d012ad342ebcf9026a0e
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SSDEEP
6144:IDsLXWohp/BGIBmE8FhC1n28gqjAWTM4xVvkHb+ewx:yszWoz/BJZ8FsJ2QXTMENi+r
Malware Config
Signatures
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Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/2124-133-0x00000000005E0000-0x00000000005E9000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Blocklisted process makes network request 3 IoCs
flow pid Process 29 2700 rundll32.exe 32 2700 rundll32.exe 56 2700 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 1180 DBFD.exe -
Loads dropped DLL 1 IoCs
pid Process 2700 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2700 set thread context of 4444 2700 rundll32.exe 91 -
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 2364 1180 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 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\0\Previous Update Revision 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\Component Information 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\Identifier rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\~MHz rundll32.exe 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 queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Platform Specific Field 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\1\Component Information 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\Configuration Data rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Previous Update Revision 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\1\Update Revision 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Status rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe -
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found -
Modifies registry class 30 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e0031000000000023565a45100054656d7000003a0009000400efbe6b558a6c235661452e00000000000000000000000000000000000000000000000000f4ab1c00540065006d007000000014000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 668 Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2124 file.exe 2124 file.exe 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found 668 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 668 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2124 file.exe -
Suspicious use of AdjustPrivilegeToken 20 IoCs
description pid Process Token: SeShutdownPrivilege 668 Process not Found Token: SeCreatePagefilePrivilege 668 Process not Found Token: SeShutdownPrivilege 668 Process not Found Token: SeCreatePagefilePrivilege 668 Process not Found Token: SeShutdownPrivilege 668 Process not Found Token: SeCreatePagefilePrivilege 668 Process not Found Token: SeShutdownPrivilege 668 Process not Found Token: SeCreatePagefilePrivilege 668 Process not Found Token: SeShutdownPrivilege 668 Process not Found Token: SeCreatePagefilePrivilege 668 Process not Found Token: SeShutdownPrivilege 668 Process not Found Token: SeCreatePagefilePrivilege 668 Process not Found Token: SeShutdownPrivilege 668 Process not Found Token: SeCreatePagefilePrivilege 668 Process not Found Token: SeShutdownPrivilege 668 Process not Found Token: SeCreatePagefilePrivilege 668 Process not Found Token: SeShutdownPrivilege 668 Process not Found Token: SeCreatePagefilePrivilege 668 Process not Found Token: SeShutdownPrivilege 668 Process not Found Token: SeCreatePagefilePrivilege 668 Process not Found -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4444 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 668 Process not Found 668 Process not Found -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 668 wrote to memory of 1180 668 Process not Found 87 PID 668 wrote to memory of 1180 668 Process not Found 87 PID 668 wrote to memory of 1180 668 Process not Found 87 PID 1180 wrote to memory of 2700 1180 DBFD.exe 88 PID 1180 wrote to memory of 2700 1180 DBFD.exe 88 PID 1180 wrote to memory of 2700 1180 DBFD.exe 88 PID 2700 wrote to memory of 4444 2700 rundll32.exe 91 PID 2700 wrote to memory of 4444 2700 rundll32.exe 91 PID 2700 wrote to memory of 4444 2700 rundll32.exe 91
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:2124
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C:\Users\Admin\AppData\Local\Temp\DBFD.exeC:\Users\Admin\AppData\Local\Temp\DBFD.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1180 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Uwuepfhtwy.tmp",Iypewfhtshu2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2700 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 226913⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:4444
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1180 -s 5282⤵
- Program crash
PID:2364
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1180 -ip 11801⤵PID:1424
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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:3924
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.1MB
MD54f93d31b2f55d9a2d9c4ad09b6d42147
SHA1f0b6365c8212bf757ad67e7936f559d2b2df9973
SHA2565fd7b36420e0042c0d9a1c11ee59ab2e443fca1bf933bbf3a663c4c76d827db0
SHA512ace309ae9ee505d8769f12a71cf5260b1e3eca1d7942092d1bfca7a44f30489969021f875e3468545fb6bf3d7164cab09b4e0884898376d91bc0cc2846b63e15
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Filesize
1.1MB
MD54f93d31b2f55d9a2d9c4ad09b6d42147
SHA1f0b6365c8212bf757ad67e7936f559d2b2df9973
SHA2565fd7b36420e0042c0d9a1c11ee59ab2e443fca1bf933bbf3a663c4c76d827db0
SHA512ace309ae9ee505d8769f12a71cf5260b1e3eca1d7942092d1bfca7a44f30489969021f875e3468545fb6bf3d7164cab09b4e0884898376d91bc0cc2846b63e15
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Filesize
783KB
MD5bca40b7547bf1cb7bf2d7a53d01ff6a8
SHA1ea624306e9ac715746bd9710a2c803a7e8fdefaa
SHA256f683b568c71a82666d0d4f99a966b4c600116cdae6167f284e3cbc19075010d8
SHA512fc2d85b8df331e510305a8eb1b5f176b24d43a6df449aa90c0dd2bb6bfd37e647310a35aeb9a1ef1bcf3a6ed444d1127b7da0d47f707ba59874c7fcd00a277aa
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Filesize
783KB
MD5bca40b7547bf1cb7bf2d7a53d01ff6a8
SHA1ea624306e9ac715746bd9710a2c803a7e8fdefaa
SHA256f683b568c71a82666d0d4f99a966b4c600116cdae6167f284e3cbc19075010d8
SHA512fc2d85b8df331e510305a8eb1b5f176b24d43a6df449aa90c0dd2bb6bfd37e647310a35aeb9a1ef1bcf3a6ed444d1127b7da0d47f707ba59874c7fcd00a277aa