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
03/01/2023, 17:50
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
10 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 320KB
- Sample230103-wek38scc28
- SHA256 36995811790459ca4fa58c26b47febebe3b2cc259389923b8cf64bfacf62c389
- MD5 7c35d58593606d2635840cbd3e63bab5
- SHA1 d0f338d24ea891220c97aea99cde1856b40d2f32
- SHA512 ea5a19c0ba8481607b9a0c517f2de99bc5779d5be3932a59b7e75bbb01b37ea2ce5164b283610d487cb717609562a117cada0fc82a426d0d3e53e28be44690bc
- SSDEEP 3072:6y7yLv95RC5/Y7YM2blNlt77sevM6f/5iXKAxDFRcAGtjkyGJ8arb24cNHYcQXHV:T+LXRz2xXRf/0XXD3cAyjEvJEMrb
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4880-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4596-135-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader behavioral2/memory/4880-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4880-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4596 set thread context of 4880 4596 file.exe 81 - 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 4880 file.exe 4880 file.exe 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found 1936 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1936 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4880 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4596 wrote to memory of 4880 4596 file.exe 81 PID 4596 wrote to memory of 4880 4596 file.exe 81 PID 4596 wrote to memory of 4880 4596 file.exe 81 PID 4596 wrote to memory of 4880 4596 file.exe 81 PID 4596 wrote to memory of 4880 4596 file.exe 81 PID 4596 wrote to memory of 4880 4596 file.exe 81
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:4596 -
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:4880
-