Analysis
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max time kernel
152s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
10/10/2023, 21:08
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230915-en
General
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Target
file.exe
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Size
239KB
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MD5
cdc140bc9946b0e1e13596b6e4f7b7d2
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SHA1
84e23346c0e7501ce0b47ff83307c5468ae613a5
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SHA256
9d8e733fe6e1f661b785cdd11606761fad9ba21527c9dc4eba984ff3b86449f4
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SHA512
0b7f337e85f363ce122c61326409f3f341c5541c3db62885e62394f0cb9cf76973d7531416353e29dae05d66d1db42f5e35c113c37ef2d75399563c31d7436ef
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SSDEEP
3072:uXj+eE5Bc6zOPUMCcl6oK/5w1KerJsyMqb4Cp0/zgtA4p5Vz20J:28nOPTl7KBw1HrMqcutAiz2
Malware Config
Extracted
smokeloader
2022
http://potunulit.org/
http://hutnilior.net/
http://bulimu55t.net/
http://soryytlic4.net/
http://novanosa5org.org/
http://nuljjjnuli.org/
http://tolilolihul.net/
http://somatoka51hub.net/
http://hujukui3.net/
http://bukubuka1.net/
http://golilopaster.org/
http://newzelannd66.org/
http://otriluyttn.org/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Deletes itself 1 IoCs
pid Process 1224 Process not Found -
Executes dropped EXE 1 IoCs
pid Process 2540 wevstff -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wevstff Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wevstff Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wevstff 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 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2412 file.exe 2412 file.exe 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found 1224 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1224 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2412 file.exe 2540 wevstff -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2816 wrote to memory of 2540 2816 taskeng.exe 31 PID 2816 wrote to memory of 2540 2816 taskeng.exe 31 PID 2816 wrote to memory of 2540 2816 taskeng.exe 31 PID 2816 wrote to memory of 2540 2816 taskeng.exe 31 -
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:2412
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C:\Windows\system32\taskeng.exetaskeng.exe {A8EC3D24-9BC7-489B-A0C1-6CC031781C3B} S-1-5-21-3185155662-718608226-894467740-1000:YETUIZPU\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2816 -
C:\Users\Admin\AppData\Roaming\wevstffC:\Users\Admin\AppData\Roaming\wevstff2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2540
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
239KB
MD5cdc140bc9946b0e1e13596b6e4f7b7d2
SHA184e23346c0e7501ce0b47ff83307c5468ae613a5
SHA2569d8e733fe6e1f661b785cdd11606761fad9ba21527c9dc4eba984ff3b86449f4
SHA5120b7f337e85f363ce122c61326409f3f341c5541c3db62885e62394f0cb9cf76973d7531416353e29dae05d66d1db42f5e35c113c37ef2d75399563c31d7436ef
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Filesize
239KB
MD5cdc140bc9946b0e1e13596b6e4f7b7d2
SHA184e23346c0e7501ce0b47ff83307c5468ae613a5
SHA2569d8e733fe6e1f661b785cdd11606761fad9ba21527c9dc4eba984ff3b86449f4
SHA5120b7f337e85f363ce122c61326409f3f341c5541c3db62885e62394f0cb9cf76973d7531416353e29dae05d66d1db42f5e35c113c37ef2d75399563c31d7436ef