Analysis
- max time kernel
150s - max time network
34s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
03/01/2023, 03:14
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 187KB
- Sample230103-drbffshe79
- SHA256 f4438ed05971a15d70c9683dc9e1a55c583ea8c61039e9e85eb391ca6e3fa0ae
- MD5 8e34d5cf7e39f355cdaa0a9ba0533901
- SHA1 896a0ef46306262742dc5631f225252e37266c86
- SHA512 50b0cb12315e97636ec9de08f3d49b4ddb7ef02377936a4bf0a44c47df4a85b3fe1284a20b23c86e52e1c916be61b757afb7fe00abc028d30b38fb9ff0151d3c
- SSDEEP 3072:jRpXLpUoV/WKK5SngdaQbWbUvM9gLrDB3u3ZhIU:7LJ/WKKtqITLfB3urI
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/1964-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1964-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/1708-58-0x00000000001B0000-0x00000000001B9000-memory.dmp family_smokeloader behavioral1/memory/1964-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1964-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1708 set thread context of 1964 1708 file.exe 28 - 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 1964 file.exe 1964 file.exe 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found 1228 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1228 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1964 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1708 wrote to memory of 1964 1708 file.exe 28 PID 1708 wrote to memory of 1964 1708 file.exe 28 PID 1708 wrote to memory of 1964 1708 file.exe 28 PID 1708 wrote to memory of 1964 1708 file.exe 28 PID 1708 wrote to memory of 1964 1708 file.exe 28 PID 1708 wrote to memory of 1964 1708 file.exe 28 PID 1708 wrote to memory of 1964 1708 file.exe 28
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:1708 -
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:1964
-