Analysis
- max time kernel
150s - max time network
123s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
09/01/2023, 22:55
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 322KB
- Sample230109-2v4heagb35
- SHA256 ef50b2a5ac947e8b1bf0f8f55d97aa5dbdb4f058e950535ef0f478b4428993cc
- MD5 4e12ae1af4abdd32b273392ea17b69f8
- SHA1 61e71fd270f81e93dc91c6d8a4993f59559abb8d
- SHA512 d8feb7d7bac30d75fbad3efe421bffe041b75e48126229b947a594ac8bf2898b892bc5ad191ed181cce8489e4497a5b216f4d7a088e75e58e2c879e2fa3a6dd2
- SSDEEP 6144:unV/fO/du2MW7DUN/L+UXZJuRfRZzOwTHU0jVmf/y:uV2t5nUN/L+UXZglzNoq
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2976-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4344-135-0x0000000000520000-0x0000000000529000-memory.dmp family_smokeloader behavioral2/memory/2976-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2976-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4344 set thread context of 2976 4344 file.exe 79 - 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 2976 file.exe 2976 file.exe 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found 3076 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3076 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2976 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4344 wrote to memory of 2976 4344 file.exe 79 PID 4344 wrote to memory of 2976 4344 file.exe 79 PID 4344 wrote to memory of 2976 4344 file.exe 79 PID 4344 wrote to memory of 2976 4344 file.exe 79 PID 4344 wrote to memory of 2976 4344 file.exe 79 PID 4344 wrote to memory of 2976 4344 file.exe 79
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:4344 -
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:2976
-