Malware Analysis Report

2025-04-13 10:57

Sample ID 231224-yl4j9sgbg6
Target 0f03eab5505bb4a4df99ccead0fc28f4
SHA256 aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88
Tags
xloader ushb 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

aaa40ee2b509dc2b3a2f12f62d70565c85eb9aa13a7efd43bb86cfba0a3e1a88

Threat Level: Known bad

The file 0f03eab5505bb4a4df99ccead0fc28f4 was found to be: Known bad.

Malicious Activity Summary

xloader ushb loader rat

Xloader

CustAttr .NET packer

Xloader payload

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-24 19:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-24 19:53

Reported

2023-12-25 12:31

Platform

win7-20231215-en

Max time kernel

119s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.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
N/A N/A N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2072 set thread context of 2652 N/A C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe

"C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe"

C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe

"C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe"

Network

N/A

Files

memory/2072-0-0x00000000013B0000-0x00000000014BE000-memory.dmp

memory/2072-1-0x0000000073EB0000-0x000000007459E000-memory.dmp

memory/2072-2-0x0000000000D00000-0x0000000000D40000-memory.dmp

memory/2072-3-0x0000000000190000-0x00000000001A2000-memory.dmp

memory/2072-4-0x0000000073EB0000-0x000000007459E000-memory.dmp

memory/2072-5-0x0000000000D00000-0x0000000000D40000-memory.dmp

memory/2072-6-0x00000000058F0000-0x0000000005966000-memory.dmp

memory/2072-7-0x0000000000410000-0x0000000000440000-memory.dmp

memory/2652-8-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2652-14-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2652-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2072-15-0x0000000073EB0000-0x000000007459E000-memory.dmp

memory/2652-10-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2652-16-0x0000000000A80000-0x0000000000D83000-memory.dmp

memory/2652-17-0x0000000000A80000-0x0000000000D83000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-24 19:53

Reported

2023-12-25 12:30

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.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 1568 set thread context of 1256 N/A C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe

"C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe"

C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe

"C:\Users\Admin\AppData\Local\Temp\0f03eab5505bb4a4df99ccead0fc28f4.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.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 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 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 udp
N/A 20.54.110.119:443 tcp
US 8.8.8.8:53 udp
GB 87.248.205.0:80 tcp
US 8.8.8.8:53 udp
GB 87.248.205.0:80 tcp
US 8.8.8.8:53 udp
GB 88.221.135.217:80 tcp
US 8.8.8.8:53 210.135.221.88.in-addr.arpa udp
GB 88.221.135.210:80 tcp
US 8.8.8.8:53 udp
GB 88.221.135.88:80 tcp
GB 88.221.135.217:80 tcp
GB 88.221.135.217:80 tcp
GB 88.221.135.210:80 tcp
GB 88.221.135.210:80 tcp
US 8.8.8.8:53 udp
GB 88.221.135.88:80 tcp
GB 88.221.135.217:80 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 55.179.17.96.in-addr.arpa udp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
US 8.8.8.8:53 udp
N/A 20.189.173.9:443 tcp
GB 96.17.179.55:80 tcp
US 192.229.221.95:80 tcp
US 8.8.8.8:53 udp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 udp
US 138.91.171.81:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp

Files

memory/1568-1-0x0000000074D40000-0x00000000754F0000-memory.dmp

memory/1568-2-0x0000000005190000-0x000000000522C000-memory.dmp

memory/1568-3-0x00000000057E0000-0x0000000005D84000-memory.dmp

memory/1568-0-0x00000000006F0000-0x00000000007FE000-memory.dmp

memory/1568-4-0x00000000052D0000-0x0000000005362000-memory.dmp

memory/1568-5-0x00000000054F0000-0x0000000005500000-memory.dmp

memory/1568-7-0x0000000005500000-0x0000000005556000-memory.dmp

memory/1568-6-0x0000000005290000-0x000000000529A000-memory.dmp

memory/1568-8-0x0000000004B90000-0x0000000004BA2000-memory.dmp

memory/1568-9-0x0000000074D40000-0x00000000754F0000-memory.dmp

memory/1568-10-0x00000000054F0000-0x0000000005500000-memory.dmp

memory/1568-11-0x0000000006B00000-0x0000000006B76000-memory.dmp

memory/1256-13-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1568-12-0x00000000068E0000-0x0000000006910000-memory.dmp

memory/1568-15-0x0000000074D40000-0x00000000754F0000-memory.dmp

memory/1256-16-0x0000000001250000-0x000000000159A000-memory.dmp