Malware Analysis Report

2025-04-13 10:56

Sample ID 231224-wvml1agcd4
Target 0afe819fb6bd54d591e7b5b368920793
SHA256 68a5258c5c468efc0102b57b21cf9b641032d37746f510b2876d93a3271b10f2
Tags
xloader wufn 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

68a5258c5c468efc0102b57b21cf9b641032d37746f510b2876d93a3271b10f2

Threat Level: Known bad

The file 0afe819fb6bd54d591e7b5b368920793 was found to be: Known bad.

Malicious Activity Summary

xloader wufn loader rat

Xloader

CustAttr .NET packer

Xloader payload

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-24 18:14

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-24 18:14

Reported

2023-12-25 06:43

Platform

win7-20231129-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe"

Signatures

CustAttr .NET packer

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2724 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe
PID 2724 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe

"C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe"

C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe

"C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe"

C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe

"C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe"

C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe

"C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe"

C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe

"C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe"

C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe

"C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe"

Network

N/A

Files

memory/2724-1-0x0000000074BA0000-0x000000007528E000-memory.dmp

memory/2724-0-0x0000000000360000-0x0000000000492000-memory.dmp

memory/2724-2-0x0000000004E90000-0x0000000004ED0000-memory.dmp

memory/2724-3-0x0000000000350000-0x0000000000362000-memory.dmp

memory/2724-4-0x0000000074BA0000-0x000000007528E000-memory.dmp

memory/2724-5-0x0000000004E90000-0x0000000004ED0000-memory.dmp

memory/2724-6-0x0000000004820000-0x0000000004898000-memory.dmp

memory/2724-7-0x0000000000870000-0x00000000008A0000-memory.dmp

memory/2724-8-0x0000000074BA0000-0x000000007528E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-24 18:14

Reported

2023-12-25 06:44

Platform

win10v2004-20231215-en

Max time kernel

142s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe"

Signatures

Xloader

loader xloader

CustAttr .NET packer

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

Xloader payload

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2064 set thread context of 4200 N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe

"C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe"

C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe

"C:\Users\Admin\AppData\Local\Temp\0afe819fb6bd54d591e7b5b368920793.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 90.16.208.104.in-addr.arpa udp

Files

memory/2064-0-0x00000000008B0000-0x00000000009E2000-memory.dmp

memory/2064-1-0x00000000752E0000-0x0000000075A90000-memory.dmp

memory/2064-2-0x0000000005380000-0x000000000541C000-memory.dmp

memory/2064-3-0x00000000059D0000-0x0000000005F74000-memory.dmp

memory/2064-4-0x00000000054C0000-0x0000000005552000-memory.dmp

memory/2064-5-0x00000000056F0000-0x0000000005700000-memory.dmp

memory/2064-6-0x0000000005490000-0x000000000549A000-memory.dmp

memory/2064-7-0x0000000005700000-0x0000000005756000-memory.dmp

memory/2064-8-0x0000000002C90000-0x0000000002CA2000-memory.dmp

memory/2064-9-0x00000000752E0000-0x0000000075A90000-memory.dmp

memory/2064-10-0x00000000056F0000-0x0000000005700000-memory.dmp

memory/2064-11-0x0000000006DE0000-0x0000000006E58000-memory.dmp

memory/2064-12-0x0000000006E50000-0x0000000006E80000-memory.dmp

memory/4200-13-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2064-15-0x00000000752E0000-0x0000000075A90000-memory.dmp

memory/4200-16-0x0000000001A60000-0x0000000001DAA000-memory.dmp