smokeloader | 3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b

Analysis

max time kernel
90s
max time network
96s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
07-05-2024 23:19

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General

Target

3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b.exe
Size

233KB
MD5

16a96f83c23921ce072901296a9a590a
SHA1

affc4370367d2e656d2cc5877e02a490d923dbf8
SHA256

3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b
SHA512

28bf728b320bbd5dac64ed35cdb344a0cd59f208190ad4d067ee1806df0d413783340df51465a951dd5ac353b3ac6b07f056c4927158e47fedf050c45e21724b
SSDEEP

1536:r6WC+qgd11r4p68tP59lFUo8kuiax540TvZzIo4uf2c3COOS46ia5yCWgIAKHFxf:8MyPFUycTvJT4ufV3OS4Na5XfIA/3Gh

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

720 2924 WerFault.exe 3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b.exe

pid	pid_target	process	target process
720	2924	WerFault.exe	3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b.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:

3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b.exe

C:\Users\Admin\AppData\Local\Temp\3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b.exe
"C:\Users\Admin\AppData\Local\Temp\3a2862fb7ee7d8a5686ac2bdbb8f9f6a8e64f7020fbc77c8743b452ba0192c2b.exe"
1⤵
- Checks SCSI registry key(s)
PID:2924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2924 -s 384
  2⤵
  - Program crash
  PID:720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2924 -ip 2924
1⤵
PID:4408

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

Replay Monitor

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Downloads

memory/2924-1-0x0000000002E10000-0x0000000002F10000-memory.dmp

Filesize
1024KB

Download
memory/2924-2-0x0000000004810000-0x000000000481B000-memory.dmp

Filesize
44KB

Download
memory/2924-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2924-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2924-5-0x0000000004810000-0x000000000481B000-memory.dmp

Filesize
44KB

Download
memory/2924-4-0x0000000000400000-0x0000000002AF7000-memory.dmp

Filesize
39.0MB

Download