Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2023 07:14
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231023-en
General
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Target
file.exe
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Size
265KB
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MD5
d7752d31728c6341a41b3aa476fa3529
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SHA1
d243602f189bf7c5978d929ffd4a9aa321712138
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SHA256
08a646fa562d3e3f447b7001356424cc5d7c7296873a8d1d94be35bd52a3b58d
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SHA512
6040276c9c6206132e2dced287bd4452222c494e4f1d4191d51dbd43861e8d02d2abaf704ebe12462a8fb2eb59431eca684a0d20ee25f7f0fe76d5a2d38973c0
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SSDEEP
3072:Q7FaQEw9YltfXFZ/yxSeLjRtrgssGbuHhmPcuddu2M93fzC7G/56YEZ4:oFHP0vFZ6xSehtzFjzAvzC
Malware Config
Extracted
smokeloader
pub4
Extracted
smokeloader
2022
http://humydrole.com/tmp/index.php
http://trunk-co.ru/tmp/index.php
http://weareelight.com/tmp/index.php
http://pirateking.online/tmp/index.php
http://piratia.pw/tmp/index.php
http://go-piratia.ru/tmp/index.php
Signatures
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Detect PureLogs payload 2 IoCs
resource yara_rule behavioral2/memory/4676-16-0x0000000002500000-0x00000000025DA000-memory.dmp family_purelogs behavioral2/memory/4676-20-0x0000000005290000-0x000000000536A000-memory.dmp family_purelogs -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Downloads MZ/PE file
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Deletes itself 1 IoCs
pid Process 3240 Process not Found -
Executes dropped EXE 1 IoCs
pid Process 4676 3A74.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4676 set thread context of 1488 4676 3A74.exe 112 -
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 -
Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4832 file.exe 4832 file.exe 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found 3240 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3240 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4832 file.exe -
Suspicious use of AdjustPrivilegeToken 15 IoCs
description pid Process Token: SeManageVolumePrivilege 2044 svchost.exe Token: SeShutdownPrivilege 3240 Process not Found Token: SeCreatePagefilePrivilege 3240 Process not Found Token: SeShutdownPrivilege 3240 Process not Found Token: SeCreatePagefilePrivilege 3240 Process not Found Token: SeShutdownPrivilege 3240 Process not Found Token: SeCreatePagefilePrivilege 3240 Process not Found Token: SeShutdownPrivilege 3240 Process not Found Token: SeCreatePagefilePrivilege 3240 Process not Found Token: SeShutdownPrivilege 3240 Process not Found Token: SeCreatePagefilePrivilege 3240 Process not Found Token: SeShutdownPrivilege 3240 Process not Found Token: SeCreatePagefilePrivilege 3240 Process not Found Token: SeShutdownPrivilege 3240 Process not Found Token: SeCreatePagefilePrivilege 3240 Process not Found -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3240 Process not Found 3240 Process not Found -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3240 wrote to memory of 4676 3240 Process not Found 106 PID 3240 wrote to memory of 4676 3240 Process not Found 106 PID 3240 wrote to memory of 4676 3240 Process not Found 106 PID 4676 wrote to memory of 1488 4676 3A74.exe 112 PID 4676 wrote to memory of 1488 4676 3A74.exe 112 PID 4676 wrote to memory of 1488 4676 3A74.exe 112 PID 4676 wrote to memory of 1488 4676 3A74.exe 112 PID 4676 wrote to memory of 1488 4676 3A74.exe 112 PID 4676 wrote to memory of 1488 4676 3A74.exe 112 PID 4676 wrote to memory of 1488 4676 3A74.exe 112 PID 4676 wrote to memory of 1488 4676 3A74.exe 112 PID 4676 wrote to memory of 1488 4676 3A74.exe 112 -
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\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4832
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C:\Users\Admin\AppData\Local\Temp\3A74.exeC:\Users\Admin\AppData\Local\Temp\3A74.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4676 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe2⤵PID:1488
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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:4780
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2044
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.8MB
MD590c99127993e7d99197eb88ea2e82806
SHA17ff88701a269f8e4eb122cbc48e0ff515764a43d
SHA256c3ab62bb1d1ae51c68f9ab5bab2fb7bcf6eed8755ed543e23424375f0329f6f5
SHA512f9a7f6233eb7d44bd8c470a07e224ca44290635d7e8d0cd78df0801fb510ebd09e648fb5340a73cbb57f2395ae4b92e496627a4c5b23c5845a531662f81ae825
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Filesize
2.8MB
MD590c99127993e7d99197eb88ea2e82806
SHA17ff88701a269f8e4eb122cbc48e0ff515764a43d
SHA256c3ab62bb1d1ae51c68f9ab5bab2fb7bcf6eed8755ed543e23424375f0329f6f5
SHA512f9a7f6233eb7d44bd8c470a07e224ca44290635d7e8d0cd78df0801fb510ebd09e648fb5340a73cbb57f2395ae4b92e496627a4c5b23c5845a531662f81ae825