Malware Analysis Report

2025-04-13 10:56

Sample ID 231224-w9yb2shdbl
Target 0c737a6befc4bba6c1ddba35d396f9d6
SHA256 f6bd2853a8346c75b10f30184adf3a12ddcc7b25dac4a1b0a5e281179b1e1322
Tags
xloader b6a4 loader rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

f6bd2853a8346c75b10f30184adf3a12ddcc7b25dac4a1b0a5e281179b1e1322

Threat Level: Known bad

The file 0c737a6befc4bba6c1ddba35d396f9d6 was found to be: Known bad.

Malicious Activity Summary

xloader b6a4 loader rat

Xloader

Xloader payload

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-24 18:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-24 18:37

Reported

2023-12-24 22:29

Platform

win7-20231215-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.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 2140 set thread context of 292 N/A C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe

"C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe"

C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe

"C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe"

Network

N/A

Files

memory/2140-2-0x0000000000080000-0x0000000000082000-memory.dmp

memory/292-4-0x0000000000910000-0x0000000000C13000-memory.dmp

memory/292-3-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2140-1-0x00000000001D0000-0x00000000002D0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-24 18:37

Reported

2023-12-24 22:30

Platform

win10v2004-20231222-en

Max time kernel

96s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.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 4840 set thread context of 1352 N/A C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe

"C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe"

C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe

"C:\Users\Admin\AppData\Local\Temp\0c737a6befc4bba6c1ddba35d396f9d6.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4840 -ip 4840

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4840 -s 312

Network

Country Destination Domain Proto
US 8.8.8.8:53 20.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/1352-6-0x0000000000EE0000-0x000000000122A000-memory.dmp

memory/1352-3-0x0000000000700000-0x0000000000728000-memory.dmp

memory/4840-2-0x0000000000FE0000-0x0000000000FE2000-memory.dmp

memory/4840-1-0x0000000000840000-0x0000000000940000-memory.dmp

memory/1352-7-0x0000000000EE0000-0x000000000122A000-memory.dmp