Analysis
- max time kernel
150s - max time network
108s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
26/01/2023, 03:33
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 324KB
- Sample230126-d37b9sdh2s
- SHA256 f2f27d74ef6d916e4523b4c8ec2d0cc7cf5ca534360c09f8da0e937ae38142a9
- MD5 b6354146b75adec1fae37297423303d9
- SHA1 35e271e7b739d298de89d5ea95dbbcf1aacc86ee
- SHA512 c593dea7c69ac51ba4ca8f1e3c6d630bfb2ad7e30b76c17b6ab63cfc17707ceeaad8eb1c77f0e647339225aac7aa5b046445986a7fe1e1574350b9e63e140646
- SSDEEP 6144:O6LjDXlRhy0RRA2sirshnqXhDY0+MOKXMPOUT:O6r1RhLAniz0WQ2UT
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4760-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3440-135-0x00000000021A0000-0x00000000021A9000-memory.dmp family_smokeloader behavioral2/memory/4760-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4760-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3440 set thread context of 4760 3440 file.exe 81 - 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 4760 file.exe 4760 file.exe 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1076 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4760 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3440 wrote to memory of 4760 3440 file.exe 81 PID 3440 wrote to memory of 4760 3440 file.exe 81 PID 3440 wrote to memory of 4760 3440 file.exe 81 PID 3440 wrote to memory of 4760 3440 file.exe 81 PID 3440 wrote to memory of 4760 3440 file.exe 81 PID 3440 wrote to memory of 4760 3440 file.exe 81
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:3440 -
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:4760
-