Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
22/09/2023, 15:48
Static task
static1
Behavioral task
behavioral1
Sample
3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe
Resource
win10v2004-20230915-en
General
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Target
3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe
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Size
211KB
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MD5
558064602651bb656d5b4d51d8499739
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SHA1
f26eb27c4c7057e43e246faf0d66c63badfafef8
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SHA256
3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa
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SHA512
0578a27a2a5ca8a0d1ff30b6490b010c2b019ec872de7bd0efb6ec4688482dafee95bbbfcda4bdf4d8b7a1b0cbecdf7bb4cd6545fa9544de186b328da0ccd402
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SSDEEP
3072:PXJAEziPS8H3TTd2C3xk4PQbKcocHxpIVI51KOfUhz:/yEe6gDT8OfPrBcMVYKC
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4948 set thread context of 936 4948 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe 90 -
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 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe -
Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 936 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe 936 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found 2568 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2568 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 936 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeManageVolumePrivilege 4020 svchost.exe Token: SeShutdownPrivilege 2568 Process not Found Token: SeCreatePagefilePrivilege 2568 Process not Found Token: SeShutdownPrivilege 2568 Process not Found Token: SeCreatePagefilePrivilege 2568 Process not Found Token: SeShutdownPrivilege 2568 Process not Found Token: SeCreatePagefilePrivilege 2568 Process not Found -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2568 Process not Found 2568 Process not Found -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 2568 Process not Found -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4948 wrote to memory of 936 4948 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe 90 PID 4948 wrote to memory of 936 4948 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe 90 PID 4948 wrote to memory of 936 4948 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe 90 PID 4948 wrote to memory of 936 4948 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe 90 PID 4948 wrote to memory of 936 4948 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe 90 PID 4948 wrote to memory of 936 4948 3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe 90 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe"C:\Users\Admin\AppData\Local\Temp\3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4948 -
C:\Users\Admin\AppData\Local\Temp\3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe"C:\Users\Admin\AppData\Local\Temp\3e426457b7d750e038d399c99afa1ea8a75c21ec18e376702af0b25951f9a2fa.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:936
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵PID:4064
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4020