Analysis
- max time kernel
153s - max time network
181s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
11/02/2023, 14:10
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
9 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 239KB
- Sample230211-rgpf8aee8v
- SHA256 efedead4bb038abdba0dd233393cf11be42c359870e3cebb0f97d5eb6322c070
- MD5 b2071541a08d2c255d2b71e99daea9c4
- SHA1 77dfcf048917fba3b1bacd14a7d7982aa0566d15
- SHA512 2be38badd90b0c9aa283f0bb8ebd4abbe43937d68321f466c6c434f9b4ffbd37cf3391a1f19a9c5816a6e77d558c139409bc68eb716f4d55adf0bc692f87cf75
- SSDEEP 3072:3t5Mf01oh64u7S5BCTmC0NrbGKJP8IUStlwFYSSFRacP:9OceA7KCTmCMBJDUASF/SSc
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4740-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4844-135-0x00000000008F0000-0x00000000008F9000-memory.dmp family_smokeloader behavioral2/memory/4740-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4740-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4844 set thread context of 4740 4844 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 4740 file.exe 4740 file.exe 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found 2708 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2708 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4740 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4844 wrote to memory of 4740 4844 file.exe 80 PID 4844 wrote to memory of 4740 4844 file.exe 80 PID 4844 wrote to memory of 4740 4844 file.exe 80 PID 4844 wrote to memory of 4740 4844 file.exe 80 PID 4844 wrote to memory of 4740 4844 file.exe 80 PID 4844 wrote to memory of 4740 4844 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:4844 -
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:4740
-