Analysis
- max time kernel
150s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
08/01/2023, 22:30
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 260KB
- Sample230108-2es2qsfa44
- SHA256 862ad7b94a35c52c4bfe7e6ab06b4ae368e99b11dddcdd35dc5d1a59493e6c4d
- MD5 003fc51bfa63313f4123df8e820340d4
- SHA1 411486391136349d064c31ca9485904472cb5be3
- SHA512 381584062b6e3d952cd758cdd067cd8acb329d8bebcba1e2ca080ebf9ad9f6bd7a0a691d5e6a5afb303678cef130998ba73415123b376faa398a26e2874e2b8e
- SSDEEP 3072:n9XEmc2TCLC7z7diBb+15X3SH8Y1ma5CGZ8lMPZN8x87WAc9hZCRRzMuWZgd3n:5oLs7diBbPH8YokZ/Vscqgd3
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral2/memory/4744-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4224-135-0x0000000002D00000-0x0000000002D09000-memory.dmp family_smokeloader behavioral2/memory/4744-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4744-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4744-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4224 set thread context of 4744 4224 file.exe 79 - 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 4744 file.exe 4744 file.exe 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found 2712 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2712 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4744 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4224 wrote to memory of 4744 4224 file.exe 79 PID 4224 wrote to memory of 4744 4224 file.exe 79 PID 4224 wrote to memory of 4744 4224 file.exe 79 PID 4224 wrote to memory of 4744 4224 file.exe 79 PID 4224 wrote to memory of 4744 4224 file.exe 79 PID 4224 wrote to memory of 4744 4224 file.exe 79
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:4224 -
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:4744
-