smokeloader | b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57

Analysis

max time kernel
145s
max time network
154s
platform
windows11-21h2_x64
resource
win11-20240709-en
resource tags

arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
submitted
21-07-2024 11:57

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General

Target

b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57.exe
Size

291KB
MD5

f89f99695ae8c294b185de6263f3541e
SHA1

915f353694c733ede5bd895df91a89258c98e4e5
SHA256

b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57
SHA512

35d394dacbe799b7f7e9d3c19683c69834ba794a544dd8f4b3b9c70eb17ea88d857f077591904f0c9ca974538504b044a73b496274cdaeeed189e457540a0519
SSDEEP

6144:3BkIW6Ra2XkSqOUOwuceakeDb9/VSyjA:612XkxO1wukttO

Score

10^/10

smokeloader pub1 backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4360 1360 WerFault.exe b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57.exe

pid	pid_target	process	target process
4360	1360	WerFault.exe	b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57.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:

b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57.exe

C:\Users\Admin\AppData\Local\Temp\b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57.exe
"C:\Users\Admin\AppData\Local\Temp\b81e56bc74b0965ece946cf0e9bde0e1c75388726612ad49627559c1731a9a57.exe"
1⤵
- Checks SCSI registry key(s)
PID:1360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 384
2⤵
- Program crash
PID:4360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1360 -ip 1360
1⤵
PID:5080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1360-1-0x0000000002730000-0x0000000002830000-memory.dmp

Filesize
1024KB

Download
memory/1360-2-0x00000000026D0000-0x00000000026DB000-memory.dmp

Filesize
44KB

Download
memory/1360-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1360-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1360-4-0x0000000000400000-0x0000000002462000-memory.dmp

Filesize
32.4MB

Download