Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
24/01/2023, 10:42
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 178KB
- Sample230124-mrnkfsca8t
- SHA256 4c5d87c5b314b5842c68e200f8b7cffb4f1dc90f4be0dc19f366ddaf75946d48
- MD5 050874c82a3582dd9b63ba39eccf3665
- SHA1 432f06d51a739b412fb774c7d6a63a0c52e4fed6
- SHA512 be5006e3badf1a870f550321793d86d9082ea05c0c40b999082739da4f6e41b97eb8e7d4fcbaa23262f33e29dec056b8bddc5313929fcbaf0562467233ae7576
- SSDEEP 3072:CBN2A5NoALHWsQQZ5rdstX/9pzeDgLFvbkJGovTRKWg:2HrLHWsJqzU8JzkJG2K
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3780-133-0x0000000002E30000-0x0000000002E39000-memory.dmp family_smokeloader behavioral2/memory/1092-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1092-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1092-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3780 set thread context of 1092 3780 file.exe 82 - 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 - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1092 file.exe 1092 file.exe 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 372 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1092 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3780 wrote to memory of 1092 3780 file.exe 82 PID 3780 wrote to memory of 1092 3780 file.exe 82 PID 3780 wrote to memory of 1092 3780 file.exe 82 PID 3780 wrote to memory of 1092 3780 file.exe 82 PID 3780 wrote to memory of 1092 3780 file.exe 82 PID 3780 wrote to memory of 1092 3780 file.exe 82
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:3780 -
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:1092
-