Analysis
- max time kernel
151s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
05/09/2022, 15:02
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
windows7-x64
8 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 331KB
- Sample220905-sefa7saghp
- SHA256 e58a0a2de90f1d7fb8c5c5afc4484680510ff0a70400e1823c81cbd08bca0bae
- MD5 439a179223845817c1027ead50abe7bf
- SHA1 624346b1e1fec4deafa23497af80d9a36e528f86
- SHA512 12704e97f285cc0463a133e0ec0bb07a5083a96170c922674789f842478f5b8f4e110fce6c81935e14eaf122c2e544ba9956e0426c1c1adada468425e35c5ef5
- SSDEEP 3072:5KXD9Mj0371MLzr76dFGiMcjfap2E07BNRSlOJgopOEc11TxpJgc:Ef71MLn76/uE37DcOxJ41Tlv
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2740-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3124-135-0x0000000002C10000-0x0000000002C19000-memory.dmp family_smokeloader behavioral2/memory/2740-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2740-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3124 set thread context of 2740 3124 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 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 2740 file.exe 2740 file.exe 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found 3092 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3092 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2740 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3124 wrote to memory of 2740 3124 file.exe 83 PID 3124 wrote to memory of 2740 3124 file.exe 83 PID 3124 wrote to memory of 2740 3124 file.exe 83 PID 3124 wrote to memory of 2740 3124 file.exe 83 PID 3124 wrote to memory of 2740 3124 file.exe 83 PID 3124 wrote to memory of 2740 3124 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:3124 -
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:2740
-