Analysis
- max time kernel
155s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
13/12/2022, 22:45
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 260KB
- Sample221213-2pc39sbb91
- SHA256 99fc1826fbeae71db0195dff9510f20409d2f2d120d14a2b08ac8a00e986857c
- MD5 fb06029fc75f9427d0edbc5a58896bd5
- SHA1 2ecfe316c5ddce1da22bab475ed620635701614b
- SHA512 b71d9bc7957c946206a4445b7c2bd6428f8b1a978d3ae61923c610642da0b0e2976c9bb3009822b8758d07c7fe89d768844f9f4c119e82c1b316722db0e473e3
- SSDEEP 3072:PMfkLH49e3QHI4JiELn5MIZavbq6AN8VgsqAnTyKaN5mRDalxNy8bGbQ/E1PujKq:ckLYI8LBcqbTAnTy018btow
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3736-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1732-138-0x0000000002180000-0x0000000002189000-memory.dmp family_smokeloader behavioral2/memory/3736-139-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3736-140-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1732 set thread context of 3736 1732 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 3736 file.exe 3736 file.exe 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2596 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3736 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1732 wrote to memory of 3736 1732 file.exe 80 PID 1732 wrote to memory of 3736 1732 file.exe 80 PID 1732 wrote to memory of 3736 1732 file.exe 80 PID 1732 wrote to memory of 3736 1732 file.exe 80 PID 1732 wrote to memory of 3736 1732 file.exe 80 PID 1732 wrote to memory of 3736 1732 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:1732 -
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:3736
-