Analysis
- max time kernel
150s - max time network
29s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
10/01/2023, 05:15
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 327KB
- Sample230110-fxkmesdb94
- SHA256 8bddb92e7ae1b3dbde808898029847029f1e1eea76a87e2f3c32ee8540a3bcff
- MD5 4738e357e2dad9b1a5c164cfc697cf21
- SHA1 31c1ffbddc3fba0057ba124d56caef9d864ff4bf
- SHA512 5ee4aff842ab316f3d1e42661c3539fee1478aae43d6563293a6fea8eba1d7d18c52f204465d06f9b31bb0c16b1e00948e5f46344f84cf17c90067ca269ad1c3
- SSDEEP 6144:K9AHbzJHdjUHK5m3JDW/Fu7dBA0XbMqJY:KC7V9jFuSG9
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/1228-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1228-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/948-58-0x00000000001C0000-0x00000000001C9000-memory.dmp family_smokeloader behavioral1/memory/1228-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1228-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 948 set thread context of 1228 948 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 1228 file.exe 1228 file.exe 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1244 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1228 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 948 wrote to memory of 1228 948 file.exe 28 PID 948 wrote to memory of 1228 948 file.exe 28 PID 948 wrote to memory of 1228 948 file.exe 28 PID 948 wrote to memory of 1228 948 file.exe 28 PID 948 wrote to memory of 1228 948 file.exe 28 PID 948 wrote to memory of 1228 948 file.exe 28 PID 948 wrote to memory of 1228 948 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:948 -
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:1228
-