Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
16/09/2023, 00:13
Static task
static1
Behavioral task
behavioral1
Sample
a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
Resource
win10v2004-20230915-en
General
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Target
a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
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Size
272KB
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MD5
5ee48fa6fdc554fbacbbc9b66da4f2aa
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SHA1
006f3580e833bc5e965ddc5cf4593396c96031dc
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SHA256
a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50
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SHA512
21f184ab5a541611f7342c6823addcd37a28aef72956b87874e3ee1631b9212fe5afac9f2b8d744b6d04170c8381a79d5c0500a31a454f08cdd1469f904e07fe
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SSDEEP
3072:AQvRg2YvVcjtvEKny84ccbqvPZg7UCmiMiG6Cb/V0KNMGNDn:dvwvVcjt8KnyXbqvPZg7gIJ8VBL
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 764 set thread context of 3372 764 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe 83 -
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 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3372 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe 3372 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found 3168 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3168 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3372 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 764 wrote to memory of 3372 764 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe 83 PID 764 wrote to memory of 3372 764 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe 83 PID 764 wrote to memory of 3372 764 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe 83 PID 764 wrote to memory of 3372 764 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe 83 PID 764 wrote to memory of 3372 764 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe 83 PID 764 wrote to memory of 3372 764 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe 83 -
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\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe"C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:764 -
C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe"C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3372
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