Analysis
- max time kernel
150s - max time network
33s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
05/02/2023, 00:56
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 192KB
- Sample230205-back3sag41
- SHA256 fd49a87f4d5043940575bc9774dc492ab71f58661e697bbf788e87b4a895365f
- MD5 b572ca69399c341a96de4f224093090e
- SHA1 36c5ba1a405a0fde22e89578cb90d49394a4b4c8
- SHA512 1d1ee4bc157573c63867bf8c8ca57e4a47e944ccc9eaea09b7825abb34ca5cec58f9fb4e312059138219d1a8ae9fd5412e21992c3cec50bdd233a3620d19fbef
- SSDEEP 3072:4M/ONCwr5/LLWgwXWI75HmhKevHQWOIri4wRo411OaxzR2aU:4M/s9LLQXvmQevQqwSOr
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/2040-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/2040-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/2020-58-0x0000000000220000-0x0000000000229000-memory.dmp family_smokeloader behavioral1/memory/2040-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/2040-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2020 set thread context of 2040 2020 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 2040 file.exe 2040 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 2040 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2020 wrote to memory of 2040 2020 file.exe 28 PID 2020 wrote to memory of 2040 2020 file.exe 28 PID 2020 wrote to memory of 2040 2020 file.exe 28 PID 2020 wrote to memory of 2040 2020 file.exe 28 PID 2020 wrote to memory of 2040 2020 file.exe 28 PID 2020 wrote to memory of 2040 2020 file.exe 28 PID 2020 wrote to memory of 2040 2020 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:2020 -
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:2040
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