Malware Analysis Report

2025-04-13 10:43

Sample ID 231230-hkdz8aeegn
Target 116824e0971300e9e2efe0f1c2d3f8c6
SHA256 9f019f0bf99f5d64605c844792ed965f8be65b9378404c8792311ba56edd83cc
Tags
xloader fznn loader rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9f019f0bf99f5d64605c844792ed965f8be65b9378404c8792311ba56edd83cc

Threat Level: Known bad

The file 116824e0971300e9e2efe0f1c2d3f8c6 was found to be: Known bad.

Malicious Activity Summary

xloader fznn loader rat

Xloader

Xloader payload

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-30 06:47

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-30 06:47

Reported

2023-12-31 04:15

Platform

win10v2004-20231215-en

Max time kernel

145s

Max time network

161s

Command Line

"C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe"

Signatures

Xloader

loader xloader

Xloader payload

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1448 set thread context of 2992 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe

"C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe"

C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe

"C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe"

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 4.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 104.193.132.51.in-addr.arpa udp

Files

memory/1448-1-0x0000000003130000-0x0000000003132000-memory.dmp

memory/1448-0-0x00000000000F0000-0x0000000000144000-memory.dmp

memory/2992-2-0x0000000000360000-0x0000000000388000-memory.dmp

memory/1448-5-0x00000000000F0000-0x0000000000144000-memory.dmp

memory/2992-6-0x0000000000DE0000-0x000000000112A000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-30 06:47

Reported

2023-12-31 04:15

Platform

win7-20231215-en

Max time kernel

118s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe"

Signatures

Xloader

loader xloader

Xloader payload

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2536 set thread context of 2800 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2536 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe
PID 2536 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe
PID 2536 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe
PID 2536 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe
PID 2536 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe
PID 2800 wrote to memory of 2168 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Windows\SysWOW64\WerFault.exe
PID 2800 wrote to memory of 2168 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Windows\SysWOW64\WerFault.exe
PID 2800 wrote to memory of 2168 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Windows\SysWOW64\WerFault.exe
PID 2800 wrote to memory of 2168 N/A C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe

"C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe"

C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe

"C:\Users\Admin\AppData\Local\Temp\116824e0971300e9e2efe0f1c2d3f8c6.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2800 -s 36

Network

N/A

Files

memory/2536-0-0x00000000011A0000-0x00000000011F4000-memory.dmp

memory/2536-1-0x00000000000F0000-0x00000000000F2000-memory.dmp

memory/2800-2-0x0000000000080000-0x00000000000A8000-memory.dmp

memory/2536-4-0x00000000011A0000-0x00000000011F4000-memory.dmp