Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
21/12/2022, 07:51
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
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 221KB
- Sample221221-jptrxaeh9y
- SHA256 e4fc468628b2118964e3abd7eb4288a43e44b3aca95ef4cb80515b2bafe44d78
- MD5 ac7126da4831d7ec3887bad4f1a53142
- SHA1 6f9c9fefa1ec64d7723d5491f22088ed0e9d1b03
- SHA512 e0670c040940b2f36e1b19517287b424e9658c283a3bf4b1ceee72774c09f466ffed469858e1460bc6ce23faee25f58f689a6f6b9edae2e8c935e531b95ea15b
- SSDEEP 3072:cTEAHLIarZt15j4gOdvRx1JKlW5E9G4GjgJG3Pi7b/dK7YbSNHCDml:YECLIwxmtSZG3KVMCa
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/904-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4884-135-0x00000000004B0000-0x00000000004B9000-memory.dmp family_smokeloader behavioral2/memory/904-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/904-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4884 set thread context of 904 4884 file.exe 82 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 904 file.exe 904 file.exe 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 764 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 904 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4884 wrote to memory of 904 4884 file.exe 82 PID 4884 wrote to memory of 904 4884 file.exe 82 PID 4884 wrote to memory of 904 4884 file.exe 82 PID 4884 wrote to memory of 904 4884 file.exe 82 PID 4884 wrote to memory of 904 4884 file.exe 82 PID 4884 wrote to memory of 904 4884 file.exe 82
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:4884 -
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:904
-