Malware Analysis Report

2025-04-13 10:57

Sample ID 231225-heslesfdaq
Target 0c38fc3c0a2465e3a15e1bac02f6b4bb
SHA256 b84be8911946bbe709de08dcaa4c04efc8640d92889dd5603c8afaad142a79af
Tags
xloader pagi 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

b84be8911946bbe709de08dcaa4c04efc8640d92889dd5603c8afaad142a79af

Threat Level: Known bad

The file 0c38fc3c0a2465e3a15e1bac02f6b4bb was found to be: Known bad.

Malicious Activity Summary

xloader pagi loader rat

Xloader

Xloader payload

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-25 06:39

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-25 06:39

Reported

2023-12-25 18:16

Platform

win7-20231215-en

Max time kernel

120s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.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 2248 set thread context of 1988 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2248 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe
PID 2248 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe
PID 2248 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe
PID 2248 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe
PID 2248 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe
PID 1988 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Windows\SysWOW64\WerFault.exe
PID 1988 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Windows\SysWOW64\WerFault.exe
PID 1988 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Windows\SysWOW64\WerFault.exe
PID 1988 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe

"C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe"

C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe

"C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 36

Network

N/A

Files

memory/2248-1-0x00000000000A0000-0x00000000001A0000-memory.dmp

memory/2248-2-0x0000000000080000-0x0000000000082000-memory.dmp

memory/1988-3-0x0000000000080000-0x00000000000A8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-25 06:39

Reported

2023-12-25 18:17

Platform

win10v2004-20231215-en

Max time kernel

173s

Max time network

226s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.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 1392 set thread context of 1908 N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe

"C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe"

C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe

"C:\Users\Admin\AppData\Local\Temp\0c38fc3c0a2465e3a15e1bac02f6b4bb.exe"

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 219.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 21.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 75.118.77.104.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.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 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 201.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 88.16.208.104.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.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

Files

memory/1392-1-0x0000000000400000-0x0000000000500000-memory.dmp

memory/1392-2-0x00000000005B0000-0x00000000005B2000-memory.dmp

memory/1908-3-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1908-4-0x0000000001720000-0x0000000001A6A000-memory.dmp