smokeloader | fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c

Analysis

max time kernel
150s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06-02-2023 20:50

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General

Target

fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
Size

300KB
MD5

0f700e4b1a6487ac2aa66a4364fa1d49
SHA1

be348e7999158ed52fb5c01d601152930c28dbfc
SHA256

fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c
SHA512

6472512a879ca1a872f8181214ba0078fcf128a17cdc71e23d0b8c21fde5f9ef39d4383838aa06568e79a0258997fedc04edf8dafc2486eb5d80d03fd4365692
SSDEEP

3072:C5Ob6bxOkLsZDRGXDeRTHK3TSFK2adEPDGsuQjiMTE5i6ydk4qafZi:CM63LogTeRGDSUFOysuQj9Pjqah

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/672-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4936-135-0x0000000002200000-0x0000000002209000-memory.dmp	family_smokeloader
behavioral1/memory/672-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/672-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe

description	pid	process	target process
PID 4936 set thread context of 672	4936	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.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:

fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe

pid	process
672	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
672	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2716
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe

pid process

672 fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe

pid	process
2716

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe

description	pid	process	target process
PID 4936 wrote to memory of 672	4936	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
PID 4936 wrote to memory of 672	4936	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
PID 4936 wrote to memory of 672	4936	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
PID 4936 wrote to memory of 672	4936	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
PID 4936 wrote to memory of 672	4936	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
PID 4936 wrote to memory of 672	4936	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe	fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe

C:\Users\Admin\AppData\Local\Temp\fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
"C:\Users\Admin\AppData\Local\Temp\fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4936

C:\Users\Admin\AppData\Local\Temp\fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe
"C:\Users\Admin\AppData\Local\Temp\fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:672

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

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Downloads

memory/672-132-0x0000000000000000-mapping.dmp

Download
memory/672-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/672-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/672-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4936-134-0x000000000056E000-0x0000000000583000-memory.dmp

Filesize
84KB

Download
memory/4936-135-0x0000000002200000-0x0000000002209000-memory.dmp

Filesize
36KB

Download