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
06/02/2023, 16:24
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 321KB
- Sample230206-twdpdaeg98
- SHA256 b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508
- MD5 283ca6b9729a764872c84df0203e87f2
- SHA1 e45f93053ee0d1d58caca373a0701f2ad7e04485
- SHA512 f5ca0cab39ec5ea66e4640347e425daf2636efafbb2c66819c221711be7fd47302e06eae665343dbb0de02196a99d41108580b37e45340024ec2188d21c3cecc
- SSDEEP 6144:G5Lrgy0YVu5/A1s/4o6fd8m2guQj9w4JgPaMc:G5PgYuG2AoSd8Slj6Ta
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/1496-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1496-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/1876-58-0x00000000001B0000-0x00000000001B9000-memory.dmp family_smokeloader behavioral1/memory/1496-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1496-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1876 set thread context of 1496 1876 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 1496 file.exe 1496 file.exe 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1248 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1496 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1876 wrote to memory of 1496 1876 file.exe 28 PID 1876 wrote to memory of 1496 1876 file.exe 28 PID 1876 wrote to memory of 1496 1876 file.exe 28 PID 1876 wrote to memory of 1496 1876 file.exe 28 PID 1876 wrote to memory of 1496 1876 file.exe 28 PID 1876 wrote to memory of 1496 1876 file.exe 28 PID 1876 wrote to memory of 1496 1876 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:1876 -
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:1496
-