Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
09/02/2023, 05:42
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 197KB
- Sample230209-gd1d7sef72
- SHA256 c9f9fc7cde01abdb6a47d6bb89c70a66e63ee5a0b0eb319dd397adac4eefe274
- MD5 72acb68a94a3b5dfbc720e67e1215aab
- SHA1 61c4bf705b66ad7ddf948095e967ca707d6b8b77
- SHA512 999cc2bba7b21fdf9277c0716300b61df2cafc0853ff8a317b1305985ebee3b0ba45bce615d82309326e34ae1eb978c318652b7110d8adcffffb3302e11183cb
- SSDEEP 3072:+GsO7cZUS5qUw1LmblWuzd5eY3qLHbedqDVGaZrurRem3Wms/beQQrWZ7:+Gs7hoL2l9aLHiYDVGUqPsbeQQY
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4704-134-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1740-136-0x00000000022A0000-0x00000000022A9000-memory.dmp family_smokeloader behavioral2/memory/4704-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4704-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1740 set thread context of 4704 1740 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 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 4704 file.exe 4704 file.exe 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 380 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4704 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1740 wrote to memory of 4704 1740 file.exe 80 PID 1740 wrote to memory of 4704 1740 file.exe 80 PID 1740 wrote to memory of 4704 1740 file.exe 80 PID 1740 wrote to memory of 4704 1740 file.exe 80 PID 1740 wrote to memory of 4704 1740 file.exe 80 PID 1740 wrote to memory of 4704 1740 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:1740 -
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:4704
-