Analysis
- max time kernel
151s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
30/08/2022, 14:36
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 291KB
- Sample220830-ryj8tsacdm
- SHA256 3cbeec2aac5a8fda41a097f3a6158b1193ad789950b4183deecff5becbe32bef
- MD5 bc9b89206bb6db271ac4a1e3ce995ea5
- SHA1 008438f32c43dddb5bd435d07f9639bbc327d88e
- SHA512 c5548ebc38787632b1b163bde6083f2ba16b410a17b5fd46984b56e8459c70d3c5842b313aaeb843b54668487e20412c6a9a7a114bcc1da0d440efca2c2fc955
- SSDEEP 6144:nBdZeDwlXyx6m2sAurvM/tT6AWDfgdMTG/LGBO02JH1Ft1FkvukXIyT:BdZBuIMfyyG/KBO0WFXCvux4
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3164-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5084-135-0x00000000009D0000-0x00000000009D9000-memory.dmp family_smokeloader behavioral2/memory/3164-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3164-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5084 set thread context of 3164 5084 file.exe 83 - 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 3164 file.exe 3164 file.exe 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found 2420 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2420 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3164 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5084 wrote to memory of 3164 5084 file.exe 83 PID 5084 wrote to memory of 3164 5084 file.exe 83 PID 5084 wrote to memory of 3164 5084 file.exe 83 PID 5084 wrote to memory of 3164 5084 file.exe 83 PID 5084 wrote to memory of 3164 5084 file.exe 83 PID 5084 wrote to memory of 3164 5084 file.exe 83
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:5084 -
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:3164
-