Analysis
- max time kernel
150s - max time network
88s - platform
windows10-2004_x64 - resource
win10v2004-20230221-en - resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system - submitted
22/02/2023, 11:20
Static task
static1
Behavioral task
behavioral1
Sample
2f7b2c10938ab9ca1776812cc7a78cd7.exe
Resource
win7-20230220-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2f7b2c10938ab9ca1776812cc7a78cd7.exe
Resource
win10v2004-20230221-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 2f7b2c10938ab9ca1776812cc7a78cd7.exe
- Size 195KB
- Sample230222-nffadabb33
- SHA256 99214eef940ee226b982bd31ffa9a9fc6cfea3c3e79d0902a1e1ba726eb7b9bd
- MD5 2f7b2c10938ab9ca1776812cc7a78cd7
- SHA1 563a3671c6fce20fe3967fbf201ecf07f97dc572
- SHA512 36a1f2877cc880100de469e5d65f8958cfd426fbe31ee4ffeb03cc8b63d003a75dc423e8b9f588a1c228e21184c8d75abde06170cc3e047e02fe5d7cd1dca080
- SSDEEP 3072:CZ4fTRLBdvl8xkfHkFiUmWZ5bmcXswd3eK2Sy7AxBVZiVa9wVA:+4fTRLNwDAUmAaasCOKRNiVwC
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1992-134-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5080-135-0x00000000006F0000-0x00000000006F9000-memory.dmp family_smokeloader behavioral2/memory/1992-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1992-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5080 set thread context of 1992 5080 2f7b2c10938ab9ca1776812cc7a78cd7.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 2f7b2c10938ab9ca1776812cc7a78cd7.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 2f7b2c10938ab9ca1776812cc7a78cd7.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 2f7b2c10938ab9ca1776812cc7a78cd7.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1992 2f7b2c10938ab9ca1776812cc7a78cd7.exe 1992 2f7b2c10938ab9ca1776812cc7a78cd7.exe 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3148 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1992 2f7b2c10938ab9ca1776812cc7a78cd7.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 5080 wrote to memory of 1992 5080 2f7b2c10938ab9ca1776812cc7a78cd7.exe 81 PID 5080 wrote to memory of 1992 5080 2f7b2c10938ab9ca1776812cc7a78cd7.exe 81 PID 5080 wrote to memory of 1992 5080 2f7b2c10938ab9ca1776812cc7a78cd7.exe 81 PID 5080 wrote to memory of 1992 5080 2f7b2c10938ab9ca1776812cc7a78cd7.exe 81 PID 5080 wrote to memory of 1992 5080 2f7b2c10938ab9ca1776812cc7a78cd7.exe 81 PID 5080 wrote to memory of 1992 5080 2f7b2c10938ab9ca1776812cc7a78cd7.exe 81 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2f7b2c10938ab9ca1776812cc7a78cd7.exe"C:\Users\Admin\AppData\Local\Temp\2f7b2c10938ab9ca1776812cc7a78cd7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5080 -
C:\Users\Admin\AppData\Local\Temp\2f7b2c10938ab9ca1776812cc7a78cd7.exe"C:\Users\Admin\AppData\Local\Temp\2f7b2c10938ab9ca1776812cc7a78cd7.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1992
-