Analysis
- max time kernel
150s - max time network
49s - platform
windows7_x64 - resource
win7-20220901-en - resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system - submitted
06/02/2023, 04:01
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-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 284KB
- Sample230206-ek8caaca45
- SHA256 15e4df0f272dc1835febd56679746aacdad8ee8f65ba22c680eacd66d8571ae0
- MD5 57c00683e8b7b5b778bd520bfb86ab01
- SHA1 a484617b67017456617416eaaf3cd049b2bfe304
- SHA512 fd5aacea2fbd56ef440e633eb3b8c5fed035979b160964007cdb3dc72055cd91d8df9150d8a2390e1186aea985b06bc919c443b1ee64a62993baf33a1901920c
- SSDEEP 3072:KWaaOfu3pwMo+UkbLz0gopWCu+n50oc2bHcCZ/mGU1UHynS0p1o64yP5Bs:baaMvRsLzOpLrbHFtUyHbM1o64yP5
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/1732-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/828-58-0x00000000001B0000-0x00000000001B9000-memory.dmp family_smokeloader behavioral1/memory/1732-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/1732-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1732-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 828 set thread context of 1732 828 file.exe 27 - 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 1732 file.exe 1732 file.exe 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found 1360 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1360 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1732 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 828 wrote to memory of 1732 828 file.exe 27 PID 828 wrote to memory of 1732 828 file.exe 27 PID 828 wrote to memory of 1732 828 file.exe 27 PID 828 wrote to memory of 1732 828 file.exe 27 PID 828 wrote to memory of 1732 828 file.exe 27 PID 828 wrote to memory of 1732 828 file.exe 27 PID 828 wrote to memory of 1732 828 file.exe 27
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:828 -
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:1732
-