Malware Analysis Report

2025-01-02 04:54

Sample ID 240426-n6kb1sbh6x
Target 37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.zip
SHA256 ea33703fd5a3fc1a12294091703ebbdce05405818ac839d7800063782e494119
Tags
smokeloader backdoor trojan evasion
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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

ea33703fd5a3fc1a12294091703ebbdce05405818ac839d7800063782e494119

Threat Level: Known bad

The file 37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.zip was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor trojan evasion

SmokeLoader

Resource Forking

Program crash

Unsigned PE

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-26 12:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-26 12:00

Reported

2024-04-26 12:03

Platform

win7-20240419-en

Max time kernel

120s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Processes

C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe

"C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe"

Network

N/A

Files

memory/2284-2-0x0000000000970000-0x0000000000A70000-memory.dmp

memory/2284-1-0x0000000000400000-0x0000000000826000-memory.dmp

memory/2284-4-0x0000000000400000-0x0000000000826000-memory.dmp

memory/2284-3-0x0000000000220000-0x0000000000229000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-26 12:00

Reported

2024-04-26 12:03

Platform

win10v2004-20240419-en

Max time kernel

62s

Max time network

53s

Command Line

"C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe

"C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1912 -ip 1912

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1912 -s 360

Network

Files

memory/1912-2-0x0000000000950000-0x0000000000959000-memory.dmp

memory/1912-1-0x0000000000990000-0x0000000000A90000-memory.dmp

memory/1912-3-0x0000000000400000-0x0000000000826000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-04-26 12:00

Reported

2024-04-26 12:01

Platform

android-x86-arm-20240221-en

Max time network

8s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-04-26 12:00

Reported

2024-04-26 12:01

Platform

android-x64-20240221-en

Max time network

10s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp

Files

N/A

Analysis: behavioral5

Detonation Overview

Submitted

2024-04-26 12:00

Reported

2024-04-26 12:01

Platform

android-x64-arm64-20240221-en

Max time network

11s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 172.217.169.74:443 udp
GB 216.58.213.14:443 udp

Files

N/A

Analysis: behavioral6

Detonation Overview

Submitted

2024-04-26 12:00

Reported

2024-04-26 12:03

Platform

macos-20240410-en

Max time kernel

92s

Max time network

119s

Command Line

[xpcproxy com.oracle.java.Java-Updater]

Signatures

Resource Forking

evasion
Description Indicator Process Target
N/A "/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Resources/Java Updater.app/Contents/MacOS/Java Updater" -bgcheck N/A N/A

Processes

/usr/libexec/xpcproxy

[xpcproxy com.oracle.java.Java-Updater]

/bin/sh

[sh -c sudo /bin/zsh -c "/Users/run/37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe"]

/bin/bash

[sh -c sudo /bin/zsh -c "/Users/run/37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe"]

/usr/bin/sudo

[sudo /bin/zsh -c /Users/run/37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe]

/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Resources/Java Updater.app/Contents/MacOS/Java Updater

[/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Resources/Java Updater.app/Contents/MacOS/Java Updater -bgcheck]

/bin/zsh

[/bin/zsh -c /Users/run/37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe]

/Users/run/37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe

[/Users/run/37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe]

Network

Country Destination Domain Proto
US 8.8.8.8:53 bag-cdn-lb.itunes-apple.com.akadns.net udp
N/A 224.0.0.251:5353 udp

Files

N/A