Analysis
- max time kernel
150s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
25/09/2022, 14:56
Static task
static1
Behavioral task
behavioral1
Sample
a4e3953b97ab5469ce1271c81eec1def.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a4e3953b97ab5469ce1271c81eec1def.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target a4e3953b97ab5469ce1271c81eec1def.exe
- Size 202KB
- Sample220925-sa1rcafba7
- SHA256 a86288c9fde68312414059a271d020f99a17a5d54bae3ac2b5d090e8a25a4c6c
- MD5 a4e3953b97ab5469ce1271c81eec1def
- SHA1 2676318bc1b0e13c218a98d8bfb230d48c63f32b
- SHA512 f0fe2edb32d93ccaff4d30978bce83c0d21bb4efee4dce5490a6ee97c0af07b77174dcfa7085d5af476a253024511cf783019d8df50777e68487afadcfa2b52d
- SSDEEP 3072:4WXyFmhc70j5CDwcEsvMl8YpCpaTxC/JCUuEBCbSX+/PkzXx:ctZREPlpCps+J/c
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4636-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4556-135-0x0000000000820000-0x0000000000829000-memory.dmp family_smokeloader behavioral2/memory/4636-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4636-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4556 set thread context of 4636 4556 a4e3953b97ab5469ce1271c81eec1def.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 a4e3953b97ab5469ce1271c81eec1def.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a4e3953b97ab5469ce1271c81eec1def.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a4e3953b97ab5469ce1271c81eec1def.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4636 a4e3953b97ab5469ce1271c81eec1def.exe 4636 a4e3953b97ab5469ce1271c81eec1def.exe 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found 676 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 676 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4636 a4e3953b97ab5469ce1271c81eec1def.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4556 wrote to memory of 4636 4556 a4e3953b97ab5469ce1271c81eec1def.exe 81 PID 4556 wrote to memory of 4636 4556 a4e3953b97ab5469ce1271c81eec1def.exe 81 PID 4556 wrote to memory of 4636 4556 a4e3953b97ab5469ce1271c81eec1def.exe 81 PID 4556 wrote to memory of 4636 4556 a4e3953b97ab5469ce1271c81eec1def.exe 81 PID 4556 wrote to memory of 4636 4556 a4e3953b97ab5469ce1271c81eec1def.exe 81 PID 4556 wrote to memory of 4636 4556 a4e3953b97ab5469ce1271c81eec1def.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\a4e3953b97ab5469ce1271c81eec1def.exe"C:\Users\Admin\AppData\Local\Temp\a4e3953b97ab5469ce1271c81eec1def.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4556 -
C:\Users\Admin\AppData\Local\Temp\a4e3953b97ab5469ce1271c81eec1def.exe"C:\Users\Admin\AppData\Local\Temp\a4e3953b97ab5469ce1271c81eec1def.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4636
-