Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
09/01/2023, 04:42
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
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 260KB
- Sample230109-fbpdgsge7s
- SHA256 efd66b821ac6edc733be28acc109f36893e52067943efd4e9d4826c666ca7e04
- MD5 eab18e9925bdbffe7b69c647a5205796
- SHA1 396c3561b08f9d0e693a7b93f5e59fa1872c3502
- SHA512 97b46c2e5db212f6f8eab09d1f5d54f621178be6c74492b6182165ee499b7d61a3090e4bbee572abdc2e1f93329f766a09c0c342b493943a0c1b8c01eaab44c9
- SSDEEP 3072:mKXEXKi5LohetNtjV8157V0wUMpSUvj02zEIJLfn2AEgWoY9hZCRRzMuWZgd3n:nALBtNtjV2V4MAUbXJLfbIcqgd3
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4724-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4816-135-0x00000000047A0000-0x00000000047A9000-memory.dmp family_smokeloader behavioral2/memory/4724-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4724-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4816 set thread context of 4724 4816 file.exe 83 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4724 file.exe 4724 file.exe 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found 2744 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2744 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4724 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4816 wrote to memory of 4724 4816 file.exe 83 PID 4816 wrote to memory of 4724 4816 file.exe 83 PID 4816 wrote to memory of 4724 4816 file.exe 83 PID 4816 wrote to memory of 4724 4816 file.exe 83 PID 4816 wrote to memory of 4724 4816 file.exe 83 PID 4816 wrote to memory of 4724 4816 file.exe 83
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:4816 -
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:4724
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