Analysis
- max time kernel
151s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
20/12/2022, 03:53
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 304KB
- Sample221220-efmj1sgf78
- SHA256 36a8ca3f2f677c6150378e425ded931fc35aaacfa1ffdb14f6cf4609a3984285
- MD5 65aef6a5b45e2fff0192e1ef8442d36e
- SHA1 c9234f00ae445ddd19eb81ee247316d9258cece6
- SHA512 2521537f54738497c35599b884d1f041106b2731b651bad2a5e67101dad59fbd6b91813db5a9c99dbf5ec6334bf45687e562b422468d56614e9dad40e2e6e585
- SSDEEP 3072:y9zULe+YLEEO550/WYXIxWzCnqtMp4AdKfsCqVoRHDX7Vy65/1E3ZJyyjXgKG0xk:SULGIEp7XImwGZmmT7063QZImQKG0
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1240-134-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2500-135-0x0000000002050000-0x0000000002059000-memory.dmp family_smokeloader behavioral2/memory/1240-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1240-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2500 set thread context of 1240 2500 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 1240 file.exe 1240 file.exe 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found 2480 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2480 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1240 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2500 wrote to memory of 1240 2500 file.exe 83 PID 2500 wrote to memory of 1240 2500 file.exe 83 PID 2500 wrote to memory of 1240 2500 file.exe 83 PID 2500 wrote to memory of 1240 2500 file.exe 83 PID 2500 wrote to memory of 1240 2500 file.exe 83 PID 2500 wrote to memory of 1240 2500 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:2500 -
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:1240
-