Analysis
-
max time kernel
151s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/01/2023, 05:37
Static task
static1
Behavioral task
behavioral1
Sample
891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
21 signatures
150 seconds
General
-
Target
891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005.exe
-
Size
335KB
-
MD5
0d29a33ddfd332a08e60b41e740a4dd1
-
SHA1
fdf6f43d201f027adb9f66d303cc49a4024ae490
-
SHA256
891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005
-
SHA512
6dba433832a6089cb29f6eb59a852582653332d4bbfbe5c8d9b176a91e3bd7545f2c421fd5a8e6c055b44e529d3b7172b66f790ff86b7801ef907cfba122cf1e
-
SSDEEP
6144:5KRLGi4ejueddwzZH1gc7skFjAWTM4xVvkHb+ewx:YRCi4eqeXwNHecwgXTMENi+r
Score
10/10
Malware Config
Signatures
-
Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral1/memory/1684-133-0x0000000002190000-0x0000000002199000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
-
Blocklisted process makes network request 2 IoCs
flow pid Process 46 4460 rundll32.exe 47 4460 rundll32.exe -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
pid Process 5080 62F0.exe -
Loads dropped DLL 1 IoCs
pid Process 4460 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4460 set thread context of 3620 4460 rundll32.exe 91 -
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 2996 5080 WerFault.exe 86 -
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 891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005.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 enumerated \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\FeatureSet 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\Platform Specific Field 1 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\Update Revision rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\Component Information 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\FeatureSet rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor rundll32.exe Key enumerated \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor 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\Component Information 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\~MHz 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\VendorIdentifier rundll32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Toolbar Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1" Process not Found -
Modifies registry class 30 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f44471a0359723fa74489c55595fe6b30ee0000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rundll32.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4e003100000000002356ca34100054656d7000003a0009000400efbe0c551d9c2356cd342e00000000000000000000000000000000000000000000000000043fee00540065006d007000000014000000 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags 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-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 820074001c0043465346160031000000000000000000100041707044617461000000741a595e96dfd3488d671733bcee28bac5cdfadf9f6756418947c5c76bc0b67f400009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004100700070004400610074006100000042000000 Process not Found Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1" Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\WorkFolders Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rundll32.exe Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 50003100000000000000000010004c6f63616c003c0009000400efbe00000000000000002e00000000000000000000000000000000000000000000000000000000004c006f00630061006c00000014000000 Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 Process not Found Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU Process not Found Set value (data) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 Process not Found -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3044 Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1684 891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005.exe 1684 891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005.exe 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found 3044 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3044 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1684 891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
description pid Process Token: SeShutdownPrivilege 3044 Process not Found Token: SeCreatePagefilePrivilege 3044 Process not Found Token: SeShutdownPrivilege 3044 Process not Found Token: SeCreatePagefilePrivilege 3044 Process not Found Token: SeShutdownPrivilege 3044 Process not Found Token: SeCreatePagefilePrivilege 3044 Process not Found Token: SeShutdownPrivilege 3044 Process not Found Token: SeCreatePagefilePrivilege 3044 Process not Found Token: SeShutdownPrivilege 3044 Process not Found Token: SeCreatePagefilePrivilege 3044 Process not Found Token: SeShutdownPrivilege 3044 Process not Found Token: SeCreatePagefilePrivilege 3044 Process not Found Token: SeShutdownPrivilege 3044 Process not Found Token: SeCreatePagefilePrivilege 3044 Process not Found Token: SeShutdownPrivilege 3044 Process not Found Token: SeCreatePagefilePrivilege 3044 Process not Found Token: SeShutdownPrivilege 3044 Process not Found Token: SeCreatePagefilePrivilege 3044 Process not Found -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3620 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3044 Process not Found 3044 Process not Found -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3044 wrote to memory of 5080 3044 Process not Found 86 PID 3044 wrote to memory of 5080 3044 Process not Found 86 PID 3044 wrote to memory of 5080 3044 Process not Found 86 PID 5080 wrote to memory of 4460 5080 62F0.exe 87 PID 5080 wrote to memory of 4460 5080 62F0.exe 87 PID 5080 wrote to memory of 4460 5080 62F0.exe 87 PID 4460 wrote to memory of 3620 4460 rundll32.exe 91 PID 4460 wrote to memory of 3620 4460 rundll32.exe 91 PID 4460 wrote to memory of 3620 4460 rundll32.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005.exe"C:\Users\Admin\AppData\Local\Temp\891b6cff6879ab69ae185a5956987ec46daaf434c60c93589c9ac06e4a4f7005.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1684
-
C:\Users\Admin\AppData\Local\Temp\62F0.exeC:\Users\Admin\AppData\Local\Temp\62F0.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5080 -
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:4460 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 227043⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
PID:3620
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5080 -s 5282⤵
- Program crash
PID:2996
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5080 -ip 50801⤵PID:2420
-
C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:1344
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1.1MB
MD54f93d31b2f55d9a2d9c4ad09b6d42147
SHA1f0b6365c8212bf757ad67e7936f559d2b2df9973
SHA2565fd7b36420e0042c0d9a1c11ee59ab2e443fca1bf933bbf3a663c4c76d827db0
SHA512ace309ae9ee505d8769f12a71cf5260b1e3eca1d7942092d1bfca7a44f30489969021f875e3468545fb6bf3d7164cab09b4e0884898376d91bc0cc2846b63e15
-
Filesize
1.1MB
MD54f93d31b2f55d9a2d9c4ad09b6d42147
SHA1f0b6365c8212bf757ad67e7936f559d2b2df9973
SHA2565fd7b36420e0042c0d9a1c11ee59ab2e443fca1bf933bbf3a663c4c76d827db0
SHA512ace309ae9ee505d8769f12a71cf5260b1e3eca1d7942092d1bfca7a44f30489969021f875e3468545fb6bf3d7164cab09b4e0884898376d91bc0cc2846b63e15
-
Filesize
783KB
MD5bca40b7547bf1cb7bf2d7a53d01ff6a8
SHA1ea624306e9ac715746bd9710a2c803a7e8fdefaa
SHA256f683b568c71a82666d0d4f99a966b4c600116cdae6167f284e3cbc19075010d8
SHA512fc2d85b8df331e510305a8eb1b5f176b24d43a6df449aa90c0dd2bb6bfd37e647310a35aeb9a1ef1bcf3a6ed444d1127b7da0d47f707ba59874c7fcd00a277aa
-
Filesize
783KB
MD5bca40b7547bf1cb7bf2d7a53d01ff6a8
SHA1ea624306e9ac715746bd9710a2c803a7e8fdefaa
SHA256f683b568c71a82666d0d4f99a966b4c600116cdae6167f284e3cbc19075010d8
SHA512fc2d85b8df331e510305a8eb1b5f176b24d43a6df449aa90c0dd2bb6bfd37e647310a35aeb9a1ef1bcf3a6ed444d1127b7da0d47f707ba59874c7fcd00a277aa