Analysis
- max time kernel
150s - max time network
30s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
01/01/2023, 08:51
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
9 signatures
150 seconds
General
- Target file.exe
- Size 239KB
- Sample230101-kr54dsbd52
- SHA256 a4c641f9dedb2b33068e998f77f89cc7ada0dd7b386ac1d8fd2d7155ba9f2850
- MD5 cc37ca5c51c78d638114ace299e2d083
- SHA1 bb1388a6ff5bd88ad070dd04876626ac5ffb962b
- SHA512 167a8a8fa772dc3bee3373890b53c29676bdfc656127cbc4b5416ab0e6c20d23e5f4b5b7bbb65ba92e893011fb08c2fb48955526d6c3e97b76031aa749cf5610
- SSDEEP 3072:RXuy829LnYigBaWw5iCszMHA9EAlWXwLgWZmqWYCn27hZY:1r9LYtaWy09tgbdY/ZY
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/1704-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1704-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/1148-58-0x00000000001B0000-0x00000000001B9000-memory.dmp family_smokeloader behavioral1/memory/1704-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1704-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1148 set thread context of 1704 1148 file.exe 28 - 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 1704 file.exe 1704 file.exe 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1272 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1704 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1148 wrote to memory of 1704 1148 file.exe 28 PID 1148 wrote to memory of 1704 1148 file.exe 28 PID 1148 wrote to memory of 1704 1148 file.exe 28 PID 1148 wrote to memory of 1704 1148 file.exe 28 PID 1148 wrote to memory of 1704 1148 file.exe 28 PID 1148 wrote to memory of 1704 1148 file.exe 28 PID 1148 wrote to memory of 1704 1148 file.exe 28
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:1148 -
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:1704
-