Malware Analysis Report

2025-06-16 02:13

Sample ID 240125-3ljx3safgn
Target 75cde21e312b2027780644fff8bd18f0
SHA256 e36ea88c9197fd42bd890b24de532afca1debe4d7a9867afcc83b04f09db6860
Tags
smokeloader pub1 backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e36ea88c9197fd42bd890b24de532afca1debe4d7a9867afcc83b04f09db6860

Threat Level: Known bad

The file 75cde21e312b2027780644fff8bd18f0 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Loads dropped DLL

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of UnmapMainImage

Checks SCSI registry key(s)

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-25 23:36

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-01-25 23:36

Reported

2024-01-25 23:38

Platform

win7-20231215-en

Max time kernel

150s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
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Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe

"C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 x-100new.com udp
US 8.8.8.8:53 goo0g2.xyz udp
US 8.8.8.8:53 j-20.best udp
US 8.8.8.8:53 japan-semui.xyz udp

Files

memory/2656-6-0x0000000000400000-0x0000000000C48000-memory.dmp

\Users\Admin\AppData\Local\Temp\CC4F.tmp

MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

memory/2656-2-0x0000000000020000-0x000000000002A000-memory.dmp

memory/2656-1-0x0000000000DF0000-0x0000000000EF0000-memory.dmp

memory/2656-8-0x0000000000400000-0x0000000000C48000-memory.dmp

memory/1192-7-0x0000000002AD0000-0x0000000002AE6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-25 23:36

Reported

2024-01-25 23:38

Platform

win10v2004-20231215-en

Max time kernel

156s

Max time network

163s

Command Line

"C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A N/A N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe

"C:\Users\Admin\AppData\Local\Temp\75cde21e312b2027780644fff8bd18f0.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 x-100new.com udp
US 8.8.8.8:53 goo0g2.xyz udp
US 8.8.8.8:53 j-20.best udp
US 8.8.8.8:53 japan-semui.xyz udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 24.73.42.20.in-addr.arpa udp

Files

memory/1976-1-0x0000000000DF0000-0x0000000000EF0000-memory.dmp

memory/1976-2-0x00000000001C0000-0x00000000001CA000-memory.dmp

memory/1976-3-0x0000000000400000-0x0000000000C48000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\CC4F.tmp

MD5 4f3387277ccbd6d1f21ac5c07fe4ca68
SHA1 e16506f662dc92023bf82def1d621497c8ab5890
SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA512 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

memory/3524-9-0x0000000003440000-0x0000000003456000-memory.dmp

memory/1976-10-0x0000000000400000-0x0000000000C48000-memory.dmp

memory/1976-13-0x00000000001C0000-0x00000000001CA000-memory.dmp