Analysis
- max time kernel
152s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
11/03/2023, 15:31
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 193KB
- Sample230311-sx2bdsaa84
- SHA256 eb4a6242ff57c4bd6b94e27ed4d6fd3e912b0c56a91ae557ee5bfe084cfc379d
- MD5 c00985e0211d954fe396c66ab1e8d44b
- SHA1 99a7d2b6d21298350a2364be9f9231c8acce667b
- SHA512 fcbc1962619c9b397342c89ebec3a1646f1af8056bc5bd2161f06a7ca22b28447edbfa6e2a1c82d007a72226b6f8cdc5fcffb7b3358d381a51d01c618561f381
- SSDEEP 3072:R8veoq/d3z8VqDH3zngvIOKdSn/P4mrAPCdQesQVLoS69FYYJiX6M+TJ:wql3z8VkGIOKsnHDAP6sEYF1i
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
lab
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 372 set thread context of 1468 372 file.exe 85 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1468 file.exe 1468 file.exe 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found 3192 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3192 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1468 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 372 wrote to memory of 1468 372 file.exe 85 PID 372 wrote to memory of 1468 372 file.exe 85 PID 372 wrote to memory of 1468 372 file.exe 85 PID 372 wrote to memory of 1468 372 file.exe 85 PID 372 wrote to memory of 1468 372 file.exe 85 PID 372 wrote to memory of 1468 372 file.exe 85 - 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
-
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:372 -
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:1468
-