smokeloader | 530f5d616351de3f5081638700fa9efb35ef3b73c671c02aa0c185c6aaed42ac

Analysis

max time kernel
152s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2023 07:27

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General

Target

file.exe
Size

270KB
MD5

d4f8b7ae1c91d292bb175f6a977f648b
SHA1

639bb2d5322785e4b2e2c6cf54fd2a2a50b4ae6a
SHA256

530f5d616351de3f5081638700fa9efb35ef3b73c671c02aa0c185c6aaed42ac
SHA512

9200a9e67453cd576d28f4a50ca46e344a8e4e26c2a44199a3f913ef92a965cfbf9e4283c4399a28877a265ffe789c3784b8136247c27a39fa4e00ca6a821f5d
SSDEEP

3072:MzBQZu2+UOWJoxjpBTAhzt8vfvC/4Ka2SYoDdXb0j34o5lmhZ:uhWCjpBUhz3xJyJ0j3A

Score

10^/10

smokeloader lab backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

lab

Extracted

Family

smokeloader

Version

2020

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Suspicious use of SetThreadContext 1 IoCs

Processes:

file.exe

description pid process target process

PID 3224 set thread context of 2252 3224 file.exe file.exe

description	pid	process	target process
PID 3224 set thread context of 2252	3224	file.exe	file.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

file.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

file.exe

pid	process
2252	file.exe
2252	file.exe
3260
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

3260
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

file.exe

pid process

2252 file.exe

pid	process
3260

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.exe

description	pid	process	target process
PID 3224 wrote to memory of 2252	3224	file.exe	file.exe
PID 3224 wrote to memory of 2252	3224	file.exe	file.exe
PID 3224 wrote to memory of 2252	3224	file.exe	file.exe
PID 3224 wrote to memory of 2252	3224	file.exe	file.exe
PID 3224 wrote to memory of 2252	3224	file.exe	file.exe
PID 3224 wrote to memory of 2252	3224	file.exe	file.exe

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.
persistence

Query Registry
T1012

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:3224

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:2252

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/2252-134-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2252-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2252-138-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3224-135-0x0000000002CD0000-0x0000000002CD9000-memory.dmp

Filesize
36KB

Download
memory/3260-137-0x0000000002B40000-0x0000000002B56000-memory.dmp

Filesize
88KB

Download