Analysis
- max time kernel
151s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
31/12/2022, 00:20
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 288KB
- Sample221231-amrp4acb2x
- SHA256 597c80d652bd2faa4f62b5747eb3e4d92ef7745682f6a362e15c0c96486e088b
- MD5 1934f1cbe76246d87b6ce6ee7b850f22
- SHA1 b7361f2b697d863d306017a2e3f4b70aec8c5d33
- SHA512 32df53d47aa997a3a3265a13a59880a3065a6d52ee0fab51480bf5f34b62d5ed690598648cf12287c3da5829b331df31732b68b1b3478d1afecdc5abc7d623c6
- SSDEEP 3072:yLY6Wv96HLLrXBOobQlRq65HViygWjlM4v3h5/i/8gLgCol+8U9SkEqwi:tzvErL1OobQW651ioju450kDE8UIkEq
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3536-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4756-135-0x0000000000680000-0x0000000000689000-memory.dmp family_smokeloader behavioral2/memory/3536-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3536-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4756 set thread context of 3536 4756 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 3536 file.exe 3536 file.exe 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found 2632 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2632 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3536 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4756 wrote to memory of 3536 4756 file.exe 83 PID 4756 wrote to memory of 3536 4756 file.exe 83 PID 4756 wrote to memory of 3536 4756 file.exe 83 PID 4756 wrote to memory of 3536 4756 file.exe 83 PID 4756 wrote to memory of 3536 4756 file.exe 83 PID 4756 wrote to memory of 3536 4756 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:4756 -
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:3536
-