Analysis
- max time kernel
150s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
03/12/2022, 15:51
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
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 351KB
- Sample221203-tagh5sdf44
- SHA256 ebf34a737ea9ff75ab367a8809d0e59fee5d55db6dd983f76c3e3961aeef7589
- MD5 e88afcf5b70f3b1591c2aa82064ab253
- SHA1 db198e6c573f2a64196b9887c180bfa02c4be9e1
- SHA512 2bb07df5dfa312b315472248a1cc1cd4253e0b11e9058d6218c5b602d07e3e34df094cef602bf5217cfb4a8bef74e25df9b6c46350fc305b858c68f3f5f80150
- SSDEEP 6144:1UYr4dwAfKrO09E8CJtPzoKuOnMW2RqnrE8LY:1UYmwAfuO09E8C3Pz/MW3AOY
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4820-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2776-135-0x0000000000030000-0x0000000000039000-memory.dmp family_smokeloader behavioral2/memory/4820-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4820-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2776 set thread context of 4820 2776 file.exe 80 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4820 file.exe 4820 file.exe 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3048 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4820 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2776 wrote to memory of 4820 2776 file.exe 80 PID 2776 wrote to memory of 4820 2776 file.exe 80 PID 2776 wrote to memory of 4820 2776 file.exe 80 PID 2776 wrote to memory of 4820 2776 file.exe 80 PID 2776 wrote to memory of 4820 2776 file.exe 80 PID 2776 wrote to memory of 4820 2776 file.exe 80
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:2776 -
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:4820
-