Analysis
- max time kernel
150s - max time network
114s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
25/01/2023, 00:41
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
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 200KB
- Sample230125-a1rx1sed37
- SHA256 9cd1ae6e301120154f99d7e20c235f2e07a56d7b9102474c1bcffe610f3a3cc5
- MD5 9fb6cf3c6b150052f272319937a42dd5
- SHA1 7ca8492a30dfed1bd860dcad855f9474f7a9ad14
- SHA512 ac4c8f16d09c0f2a3f38bbfca717eb485d08ae18f85461f5da369746c3e1f02f6341f7046b0579e68ad17158c7aae93f2624d5bfd41a1824607b1a9cf6889472
- SSDEEP 3072:7LBN2kgE7/O9L3Y1nxZ52Pq0AHTxAWtkDE6ejT/zX+DZ3Tj:71N9ML2nxQqRGYkDH8/zk5v
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/620-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/476-135-0x0000000002CD0000-0x0000000002CD9000-memory.dmp family_smokeloader behavioral2/memory/620-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/620-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 476 set thread context of 620 476 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 620 file.exe 620 file.exe 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found 3056 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3056 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 620 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 476 wrote to memory of 620 476 file.exe 79 PID 476 wrote to memory of 620 476 file.exe 79 PID 476 wrote to memory of 620 476 file.exe 79 PID 476 wrote to memory of 620 476 file.exe 79 PID 476 wrote to memory of 620 476 file.exe 79 PID 476 wrote to memory of 620 476 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:476 -
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:620
-