Malware Analysis Report

2025-04-13 10:47

Sample ID 231228-bb4e7afgbq
Target bd4acec724764aff79889c171a7fa327
SHA256 f922e5ed74050041bbdad3ab177c8c14d18c9147827b58e4bce90631c513cb6e
Tags
xloader h388 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

f922e5ed74050041bbdad3ab177c8c14d18c9147827b58e4bce90631c513cb6e

Threat Level: Known bad

The file bd4acec724764aff79889c171a7fa327 was found to be: Known bad.

Malicious Activity Summary

xloader h388 loader rat

Xloader

CustAttr .NET packer

Xloader payload

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-28 00:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-28 00:59

Reported

2023-12-29 13:03

Platform

win7-20231129-en

Max time kernel

120s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.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 1680 set thread context of 2608 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1680 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe
PID 1680 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe
PID 1680 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe
PID 1680 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe
PID 1680 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe
PID 1680 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe
PID 1680 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe
PID 1680 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe
PID 1680 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe
PID 1680 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe
PID 1680 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe

Processes

C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe

"C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe"

C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe

"C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe"

C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe

"C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe"

Network

N/A

Files

memory/1680-1-0x0000000073FD0000-0x00000000746BE000-memory.dmp

memory/1680-0-0x0000000000150000-0x0000000000290000-memory.dmp

memory/1680-2-0x0000000004D70000-0x0000000004DB0000-memory.dmp

memory/1680-3-0x0000000000460000-0x0000000000472000-memory.dmp

memory/1680-4-0x0000000073FD0000-0x00000000746BE000-memory.dmp

memory/1680-5-0x0000000004D70000-0x0000000004DB0000-memory.dmp

memory/1680-6-0x00000000054B0000-0x000000000552C000-memory.dmp

memory/1680-7-0x0000000000510000-0x0000000000544000-memory.dmp

memory/2608-14-0x00000000009E0000-0x0000000000CE3000-memory.dmp

memory/1680-13-0x0000000073FD0000-0x00000000746BE000-memory.dmp

memory/2608-12-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2608-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2608-9-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2608-8-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2608-15-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-28 00:59

Reported

2023-12-29 13:02

Platform

win10v2004-20231215-en

Max time kernel

148s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.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 1196 set thread context of 4300 N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe

"C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe"

C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe

"C:\Users\Admin\AppData\Local\Temp\bd4acec724764aff79889c171a7fa327.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 206.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 20.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 204.178.17.96.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 179.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 udp
N/A 20.223.35.26:443 tcp
US 8.8.8.8:53 udp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 udp
US 138.91.171.81:80 tcp
GB 96.17.178.209:80 tcp
US 8.8.8.8:53 udp
N/A 52.111.227.14:443 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
GB 96.17.178.209:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.181:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
US 8.8.8.8:53 udp
N/A 20.199.58.43:443 tcp
N/A 20.199.58.43:443 tcp
N/A 20.199.58.43:443 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
US 8.8.8.8:53 udp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
US 204.79.197.200:443 g.bing.com tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.16.110.114:80 tcp
US 8.8.8.8:53 udp
US 138.91.171.81:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
GB 96.17.178.181:80 tcp
US 8.8.8.8:53 udp
NL 13.95.31.18:443 tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.192:80 tcp
US 8.8.8.8:53 192.178.17.96.in-addr.arpa udp
GB 96.17.178.192:80 tcp
US 93.184.221.240:80 tcp
GB 96.17.178.192:80 tcp
GB 96.17.178.192:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.192:80 tcp
GB 96.17.178.192:80 tcp
NL 13.95.31.18:443 tcp
US 8.8.8.8:53 udp
N/A 96.17.178.178:80 tcp
N/A 96.17.178.178:80 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 udp
US 93.184.221.240:80 tcp
N/A 96.17.178.178:80 tcp
N/A 96.17.178.178:80 tcp

Files

memory/1196-3-0x00000000051C0000-0x0000000005764000-memory.dmp

memory/1196-4-0x0000000004CB0000-0x0000000004D42000-memory.dmp

memory/1196-5-0x0000000004E20000-0x0000000004E30000-memory.dmp

memory/1196-7-0x0000000004DB0000-0x0000000004E06000-memory.dmp

memory/1196-6-0x0000000004C40000-0x0000000004C4A000-memory.dmp

memory/1196-2-0x0000000004B20000-0x0000000004BBC000-memory.dmp

memory/1196-0-0x0000000000070000-0x00000000001B0000-memory.dmp

memory/1196-1-0x00000000744A0000-0x0000000074C50000-memory.dmp

memory/1196-8-0x0000000004E10000-0x0000000004E22000-memory.dmp

memory/1196-9-0x00000000744A0000-0x0000000074C50000-memory.dmp

memory/4300-12-0x0000000000400000-0x0000000000429000-memory.dmp

memory/1196-14-0x00000000744A0000-0x0000000074C50000-memory.dmp

memory/4300-15-0x0000000001B80000-0x0000000001ECA000-memory.dmp

memory/1196-11-0x0000000005C50000-0x0000000005C84000-memory.dmp

memory/1196-10-0x00000000066F0000-0x000000000676C000-memory.dmp

memory/4300-16-0x0000000001B80000-0x0000000001ECA000-memory.dmp