smokeloader | ce7f1fd3bcfdfe96b582d45f3d0451f93bae19d09d2511e6c28b8657ca7b6368

Analysis

max time kernel
150s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06-02-2023 16:21

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General

Target

file.exe
Size

321KB
MD5

8eabcd1564c644305dfdc32015931b78
SHA1

aafc5659b67a58bfeb5397923b47882995adf589
SHA256

ce7f1fd3bcfdfe96b582d45f3d0451f93bae19d09d2511e6c28b8657ca7b6368
SHA512

7a24587192b9353f90ab77637108df9c8df902da7682e3ad0a428f4c7a7a545c339d4af0b70b176903ca416de3594e035c91924f7d599951c3407a49b50b3d5d
SSDEEP

6144:5D1LVPr0YdhPEJa7j31jJEoRuQj90CaM5:5Z5PLXZJEoRlj+CD

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5040-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/2136-135-0x00000000005C0000-0x00000000005C9000-memory.dmp	family_smokeloader
behavioral2/memory/5040-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/5040-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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 2136 set thread context of 5040 2136 file.exe file.exe

description	pid	process	target process
PID 2136 set thread context of 5040	2136	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 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

Processes:

file.exe

pid	process
5040	file.exe
5040	file.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2984
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

file.exe

pid process

5040 file.exe

pid	process
2984

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.exe

description	pid	process	target process
PID 2136 wrote to memory of 5040	2136	file.exe	file.exe
PID 2136 wrote to memory of 5040	2136	file.exe	file.exe
PID 2136 wrote to memory of 5040	2136	file.exe	file.exe
PID 2136 wrote to memory of 5040	2136	file.exe	file.exe
PID 2136 wrote to memory of 5040	2136	file.exe	file.exe
PID 2136 wrote to memory of 5040	2136	file.exe	file.exe

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:2136

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:5040

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/2136-134-0x000000000064F000-0x0000000000665000-memory.dmp

Filesize
88KB

Download
memory/2136-135-0x00000000005C0000-0x00000000005C9000-memory.dmp

Filesize
36KB

Download
memory/5040-132-0x0000000000000000-mapping.dmp

Download
memory/5040-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5040-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5040-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download