Analysis
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max time kernel
153s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
12/02/2023, 22:56
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
13 signatures
150 seconds
General
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Target
file.exe
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Size
181KB
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MD5
ee43ae66c0666b5f7e0862236df32dd9
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SHA1
0da18a6f099a9469f785a55732a7070ddb4b27a3
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SHA256
51a393228bbbdf7bf30e6621c4480718d516216ec9c0e15c302c11073c0d3d6a
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SHA512
84e6fa6b1f9c73a60bdbe9677a3a955d604a1a637d7bd68f02a47037fe2f571b30c7f13cd6690b740793b119f072a4644c3123d348da5e8a18105c7a260f5ec8
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SSDEEP
3072:baEZBTz5HZd2DwxrX7DJMnFJ65DfGNlcxCzW3gSE:vXNgwRZMnFJMDfGNlcxk7
Score
10/10
Malware Config
Signatures
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Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2380-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1404-135-0x00000000024C0000-0x00000000024C9000-memory.dmp family_smokeloader behavioral2/memory/2380-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2380-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{974AFA72-C13E-4D91-9795-E155BA62614D}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{83D878B1-A05D-4E97-A03F-9194C4AF9BE0}.catalogItem svchost.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1404 set thread context of 2380 1404 file.exe 75 -
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 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString svchost.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU svchost.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2380 file.exe 2380 file.exe 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found 3004 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3004 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2380 file.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 3004 Process not Found 3004 Process not Found 3004 Process not Found -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 3004 Process not Found 3004 Process not Found 3004 Process not Found -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1404 wrote to memory of 2380 1404 file.exe 75 PID 1404 wrote to memory of 2380 1404 file.exe 75 PID 1404 wrote to memory of 2380 1404 file.exe 75 PID 1404 wrote to memory of 2380 1404 file.exe 75 PID 1404 wrote to memory of 2380 1404 file.exe 75 PID 1404 wrote to memory of 2380 1404 file.exe 75
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1404 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2380
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1456