Analysis
- max time kernel
150s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
12/12/2022, 12:02
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 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
- Sample221212-n7fp8abc64
- SHA256 7d7efc6f96911e7d35a3aca119ffcf40642937ed88e524a86ba816931dbd24fe
- MD5 037bd60786ef5d679331578825e950e0
- SHA1 6abce219c189c4c62813c14c94155cd2db565a05
- SHA512 a381154814990e2609d4b1582d2f4141eaeaf13c372d4ca21163cc6038c137cf1e53fbdd21947e06a052ee0325edaffed26bd2114b5554cae8cfc4b3be284382
- SSDEEP 6144:6dR4CYLXzlyOCXpZWi2SM+UGoyftx8VGqcpgX:8RlYbpyOSp72Sb+Ap
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4356-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2136-135-0x00000000005A0000-0x00000000005A9000-memory.dmp family_smokeloader behavioral2/memory/4356-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4356-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2136 set thread context of 4356 2136 file.exe 77 - 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 4356 file.exe 4356 file.exe 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found 2984 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2984 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4356 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2136 wrote to memory of 4356 2136 file.exe 77 PID 2136 wrote to memory of 4356 2136 file.exe 77 PID 2136 wrote to memory of 4356 2136 file.exe 77 PID 2136 wrote to memory of 4356 2136 file.exe 77 PID 2136 wrote to memory of 4356 2136 file.exe 77 PID 2136 wrote to memory of 4356 2136 file.exe 77
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:2136 -
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:4356
-