Analysis
- max time kernel
150s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
22/01/2023, 09:50
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
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 194KB
- Sample230122-ltxepsfg52
- SHA256 2352cb6d12f4ce35ff933efdba53e77f051dda7d48c4d9ba31a90c618ab626bb
- MD5 d4df7306abbc38e2a4b8919a0ba80a92
- SHA1 66eb50526aae4bf395b2e7aff3e4ec1255e77764
- SHA512 64fc96dff4c7a5ece878e251c20b223c82b90da969065eba9258f7a23b163253c047307ed5e30b8a4dfba0e52543af41a858e79d53e035b8565912a0f0f54457
- SSDEEP 3072:wkUBN4X3uPk3uVSLmkluIOZJkr5elUFwb7hFr1P3vQkafj8D:wksmQQLmiuIOZJkqawbDrd
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4224-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4624-135-0x0000000002D50000-0x0000000002D59000-memory.dmp family_smokeloader behavioral2/memory/4224-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4224-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4624 set thread context of 4224 4624 file.exe 80 - 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 4224 file.exe 4224 file.exe 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found 2720 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2720 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4224 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4624 wrote to memory of 4224 4624 file.exe 80 PID 4624 wrote to memory of 4224 4624 file.exe 80 PID 4624 wrote to memory of 4224 4624 file.exe 80 PID 4624 wrote to memory of 4224 4624 file.exe 80 PID 4624 wrote to memory of 4224 4624 file.exe 80 PID 4624 wrote to memory of 4224 4624 file.exe 80
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:4624 -
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:4224
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