Analysis
- max time kernel
150s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
14/12/2022, 03:01
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 259KB
- Sample221214-dhwp2aca2s
- SHA256 a0b2eb754e754a40e1cafcb1e63d9ebcc354a34cde949e781f8fa551888f669a
- MD5 38b1c7d6b116082ac583a44a5781fdfc
- SHA1 98878be07dc629a453dcec9e81c5712be5054176
- SHA512 37daccf7f871427a17f778e5dba3205c6d20b37201ecebdd97f6a757e0a4f790e00be28577e5e480dab59a7dd3805c53e4899181c04a2f9a3c3c6dff9ea8b3e8
- SSDEEP 3072:qR3ZDQL2eirvJi2qaswue1vx9WyHwQ3nggkAu/UGsT5bIzDalxNy8bGbQ/E1Puj9:gCLq5B8e1vyyHATAu/UZA78btow
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1920-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4664-135-0x0000000002180000-0x0000000002189000-memory.dmp family_smokeloader behavioral2/memory/1920-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1920-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4664 set thread context of 1920 4664 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 1920 file.exe 1920 file.exe 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found 684 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 684 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1920 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4664 wrote to memory of 1920 4664 file.exe 81 PID 4664 wrote to memory of 1920 4664 file.exe 81 PID 4664 wrote to memory of 1920 4664 file.exe 81 PID 4664 wrote to memory of 1920 4664 file.exe 81 PID 4664 wrote to memory of 1920 4664 file.exe 81 PID 4664 wrote to memory of 1920 4664 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:4664 -
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:1920
-