Malware Analysis Report

2025-08-06 03:00

Sample ID 240304-etfzdshe4x
Target b1319199a0b2ffbce63d2733f9e1553a
SHA256 703cd697f305a6d7568d3cdc517fede7c6a8947c9304cf812a133ed53753dff4
Tags
smokeloader 0108 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

703cd697f305a6d7568d3cdc517fede7c6a8947c9304cf812a133ed53753dff4

Threat Level: Known bad

The file b1319199a0b2ffbce63d2733f9e1553a was found to be: Known bad.

Malicious Activity Summary

smokeloader 0108 backdoor trojan

SmokeLoader

Deletes itself

Suspicious use of SetThreadContext

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-04 04:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-04 04:13

Reported

2024-03-04 04:16

Platform

win7-20240221-en

Max time kernel

150s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1280 set thread context of 2700 N/A C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe

"C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe"

C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe

"C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 readinglistforjuly1.xyz udp
US 8.8.8.8:53 readinglistforjuly2.xyz udp
US 8.8.8.8:53 readinglistforjuly3.xyz udp
US 8.8.8.8:53 readinglistforjuly4.xyz udp
US 8.8.8.8:53 readinglistforjuly5.xyz udp
SG 34.143.166.163:80 readinglistforjuly5.xyz tcp
US 8.8.8.8:53 readinglistforjuly6.xyz udp
US 104.198.2.251:80 readinglistforjuly6.xyz tcp
US 8.8.8.8:53 readinglistforjuly7.xyz udp
US 34.94.245.237:80 readinglistforjuly7.xyz tcp
US 8.8.8.8:53 readinglistforjuly8.xyz udp
US 8.8.8.8:53 readinglistforjuly9.xyz udp
US 8.8.8.8:53 readinglistforjuly10.xyz udp
US 8.8.8.8:53 readinglistforjuly1.site udp
US 8.8.8.8:53 readinglistforjuly2.site udp
US 8.8.8.8:53 readinglistforjuly3.site udp
US 8.8.8.8:53 readinglistforjuly4.site udp
US 8.8.8.8:53 readinglistforjuly5.site udp
US 8.8.8.8:53 readinglistforjuly6.site udp
US 8.8.8.8:53 readinglistforjuly7.site udp
SG 34.143.166.163:80 readinglistforjuly7.site tcp
US 8.8.8.8:53 readinglistforjuly8.site udp
US 8.8.8.8:53 readinglistforjuly9.site udp
US 34.174.206.7:80 readinglistforjuly9.site tcp
US 8.8.8.8:53 readinglistforjuly10.site udp
US 34.94.160.21:80 readinglistforjuly10.site tcp
US 8.8.8.8:53 readinglistforjuly1.club udp
US 8.8.8.8:53 readinglistforjuly2.club udp
US 8.8.8.8:53 readinglistforjuly3.club udp
US 8.8.8.8:53 readinglistforjuly4.club udp
US 8.8.8.8:53 readinglistforjuly5.club udp
US 8.8.8.8:53 readinglistforjuly6.club udp
US 8.8.8.8:53 readinglistforjuly7.club udp
US 8.8.8.8:53 readinglistforjuly8.club udp
US 8.8.8.8:53 readinglistforjuly9.club udp
US 8.8.8.8:53 readinglistforjuly10.club udp

Files

memory/2700-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1280-2-0x0000000000600000-0x0000000000700000-memory.dmp

memory/2700-5-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1280-4-0x0000000000220000-0x000000000022A000-memory.dmp

memory/2700-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2700-8-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1272-7-0x0000000001DA0000-0x0000000001DB6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-04 04:13

Reported

2024-03-04 04:16

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4928 set thread context of 4760 N/A C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe

Checks SCSI registry key(s)

Description Indicator Process Target
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe

"C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe"

C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe

"C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 readinglistforjuly1.xyz udp
US 8.8.8.8:53 readinglistforjuly2.xyz udp
US 8.8.8.8:53 readinglistforjuly3.xyz udp
US 8.8.8.8:53 readinglistforjuly4.xyz udp
US 8.8.8.8:53 readinglistforjuly5.xyz udp
SG 34.143.166.163:80 readinglistforjuly5.xyz tcp
US 8.8.8.8:53 readinglistforjuly6.xyz udp
US 104.198.2.251:80 readinglistforjuly6.xyz tcp
US 8.8.8.8:53 readinglistforjuly7.xyz udp
US 34.94.245.237:80 readinglistforjuly7.xyz tcp
US 8.8.8.8:53 163.166.143.34.in-addr.arpa udp
US 8.8.8.8:53 readinglistforjuly8.xyz udp
US 8.8.8.8:53 readinglistforjuly9.xyz udp
US 8.8.8.8:53 readinglistforjuly10.xyz udp
US 8.8.8.8:53 readinglistforjuly1.site udp
US 8.8.8.8:53 readinglistforjuly2.site udp
US 8.8.8.8:53 readinglistforjuly3.site udp
US 8.8.8.8:53 readinglistforjuly4.site udp
US 8.8.8.8:53 readinglistforjuly5.site udp
US 8.8.8.8:53 readinglistforjuly6.site udp
US 8.8.8.8:53 readinglistforjuly7.site udp
SG 34.143.166.163:80 readinglistforjuly7.site tcp
US 8.8.8.8:53 251.2.198.104.in-addr.arpa udp
US 8.8.8.8:53 237.245.94.34.in-addr.arpa udp
US 8.8.8.8:53 readinglistforjuly8.site udp
US 8.8.8.8:53 readinglistforjuly9.site udp
US 34.174.206.7:80 readinglistforjuly9.site tcp
US 8.8.8.8:53 readinglistforjuly10.site udp
US 34.94.160.21:80 readinglistforjuly10.site tcp
US 8.8.8.8:53 readinglistforjuly1.club udp
US 8.8.8.8:53 readinglistforjuly2.club udp
US 8.8.8.8:53 readinglistforjuly3.club udp
US 8.8.8.8:53 readinglistforjuly4.club udp
US 8.8.8.8:53 readinglistforjuly5.club udp
US 8.8.8.8:53 readinglistforjuly6.club udp
US 8.8.8.8:53 readinglistforjuly7.club udp
US 8.8.8.8:53 readinglistforjuly8.club udp
US 8.8.8.8:53 readinglistforjuly9.club udp
US 8.8.8.8:53 readinglistforjuly10.club udp
US 8.8.8.8:53 7.206.174.34.in-addr.arpa udp
US 8.8.8.8:53 21.160.94.34.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 91.16.208.104.in-addr.arpa udp

Files

memory/4928-1-0x0000000000790000-0x0000000000890000-memory.dmp

memory/4928-2-0x00000000005C0000-0x00000000005CA000-memory.dmp

memory/4760-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4760-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4760-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3552-5-0x0000000002740000-0x0000000002756000-memory.dmp