Analysis
- max time kernel
151s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
13/12/2022, 01:30
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
10 signatures
150 seconds
General
- Target file.exe
- Size 234KB
- Sample221213-bwtfqagb5x
- SHA256 0f3c99c8660671a617eafc777974343e67fdcbe5e8ccca6528384e19704e2e3c
- MD5 7d4e8a4f9b0a435c8b62b26d861ea39d
- SHA1 a73bef656dae5d35206d5936979731f87cb34ee9
- SHA512 ce476c97b99183414370fba2102e91f6a85436387d56609ba8224e9f6f91251f201dd6fd8bf35692ec669b53c4d094d6e30a7fd4e256eba324e75e3000a970cf
- SSDEEP 6144:GSpLrfbd/0yD2z7qbuNKD4Ndvv9T2lhe6:Gefp0yE7quLb8
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/5052-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/448-135-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader behavioral2/memory/5052-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5052-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 448 set thread context of 5052 448 file.exe 87 - 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 - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5052 file.exe 5052 file.exe 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found 2096 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2096 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 5052 file.exe - Suspicious use of AdjustPrivilegeToken 16 IoCs
description pid Process Token: SeShutdownPrivilege 2096 Process not Found Token: SeCreatePagefilePrivilege 2096 Process not Found Token: SeShutdownPrivilege 2096 Process not Found Token: SeCreatePagefilePrivilege 2096 Process not Found Token: SeShutdownPrivilege 2096 Process not Found Token: SeCreatePagefilePrivilege 2096 Process not Found Token: SeShutdownPrivilege 2096 Process not Found Token: SeCreatePagefilePrivilege 2096 Process not Found Token: SeShutdownPrivilege 2096 Process not Found Token: SeCreatePagefilePrivilege 2096 Process not Found Token: SeShutdownPrivilege 2096 Process not Found Token: SeCreatePagefilePrivilege 2096 Process not Found Token: SeShutdownPrivilege 2096 Process not Found Token: SeCreatePagefilePrivilege 2096 Process not Found Token: SeShutdownPrivilege 2096 Process not Found Token: SeCreatePagefilePrivilege 2096 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 448 wrote to memory of 5052 448 file.exe 87 PID 448 wrote to memory of 5052 448 file.exe 87 PID 448 wrote to memory of 5052 448 file.exe 87 PID 448 wrote to memory of 5052 448 file.exe 87 PID 448 wrote to memory of 5052 448 file.exe 87 PID 448 wrote to memory of 5052 448 file.exe 87
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:448 -
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:5052
-