Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
18/12/2022, 09:07
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 215KB
- Sample221218-k3a3dseb4y
- SHA256 a54fc39ad7dc21efd0d871a1e0bf99efa2ae9e77a00a468d636b6a99dc91bf6a
- MD5 47e00ae172d644cee5bb38380a99a47b
- SHA1 7cb7c0f52481542e92c7d06f839a0b37f2099fbc
- SHA512 53fcdc53eb32fda6b087457fe1c5a4a0dce7095cb23701c08000c50d057a4e48c7dac7317043f84f7231bb4050d38d5361094d86b20955fe6f07d3ae314127e5
- SSDEEP 3072:ZBYElFBLG6wRUiDsKE8rVSkLHzaa/yG1CRg3u6HPHOil3lk025PH:vYEDBLGlrVSuHfyG11+6HPjlVklPH
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2440-134-0x00000000007B0000-0x00000000007B9000-memory.dmp family_smokeloader behavioral2/memory/3580-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3580-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3580-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2440 set thread context of 3580 2440 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 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 3580 file.exe 3580 file.exe 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3052 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3580 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2440 wrote to memory of 3580 2440 file.exe 80 PID 2440 wrote to memory of 3580 2440 file.exe 80 PID 2440 wrote to memory of 3580 2440 file.exe 80 PID 2440 wrote to memory of 3580 2440 file.exe 80 PID 2440 wrote to memory of 3580 2440 file.exe 80 PID 2440 wrote to memory of 3580 2440 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:2440 -
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:3580
-