Analysis
- max time kernel
152s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
29/08/2022, 04:04
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 155KB
- Sample220829-emxzbsbbbr
- SHA256 b1085b633acf81d46d79ce289a74fa70043e82833008aff7e1968f3b5e93c670
- MD5 39ca7010fbee49f2ce4f371669b967b3
- SHA1 0e793615727e3cc1dc79b5322216a1d49a9f7b52
- SHA512 175a11d6fec6f293dad94653d5e41c596106d4ae4c65d7d11bec793e1796f366ea2d5f8d7fe76e1d5d57b69a901ba980ed1f51aba6c5030079cdba952e4e019c
- SSDEEP 3072:0UwNVMH4mD0pgurB/n487O8U/2CoMUaRycX3iD0siG:v6MH4mDk/4uOv2CvPRyaMliG
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1400-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1324-135-0x0000000000500000-0x0000000000509000-memory.dmp family_smokeloader behavioral2/memory/1400-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1400-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1324 set thread context of 1400 1324 file.exe 87 - 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 1400 file.exe 1400 file.exe 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found 8 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 8 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1400 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1324 wrote to memory of 1400 1324 file.exe 87 PID 1324 wrote to memory of 1400 1324 file.exe 87 PID 1324 wrote to memory of 1400 1324 file.exe 87 PID 1324 wrote to memory of 1400 1324 file.exe 87 PID 1324 wrote to memory of 1400 1324 file.exe 87 PID 1324 wrote to memory of 1400 1324 file.exe 87
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:1324 -
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:1400
-