smokeloader | 3c27269f2de144740bb95d830753dc7c641398b2885ce92864df6600978bd889

Analysis

max time kernel
145s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
03-07-2022 08:26

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General

Target

frss3003cr41.exe
Size

392KB
MD5

13386d8d3d7fd0348522df0704d3c4cb
SHA1

dddd2bd201429c3d3bc8e08fdfc16003814f8cbc
SHA256

3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b
SHA512

c30e2c14573ae8222981cb39809c63d1f8b948c09e5ff45859478f4c6593df7b6ca15724e25f52c403dda1bedecc3cfd90ed18a374cfebb10e9e403ed5556f5b

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2018

http://159.89.109.130/

http://cdvfrt5.com/

http://43trfdsds.com/

http://2344t554ddfr.com/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

frss3003cr41.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	frss3003cr41.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	frss3003cr41.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

frss3003cr41.exe

pid process

3188 frss3003cr41.exe
3188 frss3003cr41.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

frss3003cr41.exe

pid process

3188 frss3003cr41.exe

pid	process
3188	frss3003cr41.exe
3188	frss3003cr41.exe

pid	process
3188	frss3003cr41.exe

C:\Users\Admin\AppData\Local\Temp\frss3003cr41.exe
"C:\Users\Admin\AppData\Local\Temp\frss3003cr41.exe"
1⤵
- Maps connected drives based on registry
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
PID:3188

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/372-133-0x00000000013F0000-0x0000000001405000-memory.dmp

Filesize
84KB

Download
memory/3188-130-0x00000000026B0000-0x000000000270B000-memory.dmp

Filesize
364KB

Download
memory/3188-131-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/3188-132-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download