smokeloader | e8eb92ee61cb522b027ce4cfe2b77b7b44afda59c24ac938a4ee9cbbd4ced04f

Analysis

max time kernel
189s
max time network
193s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2022 06:28

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General

Target

file.exe
Size

321KB
MD5

d654ca89e14f19e82f2cb517fa5ab735
SHA1

9faa599f332a0d31c9a9bbf938048f287f56d25c
SHA256

e8eb92ee61cb522b027ce4cfe2b77b7b44afda59c24ac938a4ee9cbbd4ced04f
SHA512

024c934ff402a1e7fe0eb428cbbdf8296110516b4f32073ec04267f86018765d3a1ebb4e3def647b03f48f2a709c231ed1c2036b58daf6ce0d7cc882b600516b
SSDEEP

6144:le1Eyz+Lz7eodyeKd5xeDFSicY5Niu2sZeF:leCyynaodybw9fiuXeF

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/216-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/1764-135-0x0000000000030000-0x0000000000039000-memory.dmp	family_smokeloader
behavioral2/memory/216-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/216-137-0x0000000000400000-0x0000000000409000-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 1764 set thread context of 216 1764 file.exe file.exe

description	pid	process	target process
PID 1764 set thread context of 216	1764	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
216	file.exe
216	file.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

740
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

file.exe

pid process

216 file.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

pid process

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pid	process
740

pid	process
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Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.exe

description	pid	process	target process
PID 1764 wrote to memory of 216	1764	file.exe	file.exe
PID 1764 wrote to memory of 216	1764	file.exe	file.exe
PID 1764 wrote to memory of 216	1764	file.exe	file.exe
PID 1764 wrote to memory of 216	1764	file.exe	file.exe
PID 1764 wrote to memory of 216	1764	file.exe	file.exe
PID 1764 wrote to memory of 216	1764	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:1764

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:216

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/216-132-0x0000000000000000-mapping.dmp

Download
memory/216-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/216-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/216-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1764-134-0x0000000000593000-0x00000000005A9000-memory.dmp

Filesize
88KB

Download
memory/1764-135-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download