Malware Analysis Report

2025-04-13 10:56

Sample ID 231225-a3afracggp
Target 1dce0fc0bcc3ed4f7af74bdaeef37a5f
SHA256 e8bb9e81ed75437b45f90b1c65e3100c618090d66d7fa37f5208fedc6972f142
Tags
xloader wten 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

e8bb9e81ed75437b45f90b1c65e3100c618090d66d7fa37f5208fedc6972f142

Threat Level: Known bad

The file 1dce0fc0bcc3ed4f7af74bdaeef37a5f was found to be: Known bad.

Malicious Activity Summary

xloader wten 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

2023-12-25 00:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-25 00:43

Reported

2023-12-25 09:08

Platform

win7-20231215-en

Max time kernel

117s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.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\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1924 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe
PID 1924 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe

"C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe"

C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe

"C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe"

C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe

"C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe"

C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe

"C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe"

C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe

"C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe"

C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe

"C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe"

Network

N/A

Files

memory/1924-1-0x0000000074270000-0x000000007495E000-memory.dmp

memory/1924-0-0x0000000000330000-0x000000000046C000-memory.dmp

memory/1924-2-0x0000000004E80000-0x0000000004EC0000-memory.dmp

memory/1924-3-0x0000000000260000-0x0000000000272000-memory.dmp

memory/1924-4-0x0000000074270000-0x000000007495E000-memory.dmp

memory/1924-5-0x0000000004E80000-0x0000000004EC0000-memory.dmp

memory/1924-6-0x00000000051A0000-0x000000000521C000-memory.dmp

memory/1924-8-0x0000000074270000-0x000000007495E000-memory.dmp

memory/1924-7-0x0000000000600000-0x0000000000634000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-25 00:43

Reported

2023-12-25 09:08

Platform

win10v2004-20231215-en

Max time kernel

146s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.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 3264 set thread context of 4408 N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe

"C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe"

C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe

"C:\Users\Admin\AppData\Local\Temp\1dce0fc0bcc3ed4f7af74bdaeef37a5f.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.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 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 3.173.189.20.in-addr.arpa udp

Files

memory/3264-0-0x0000000074D40000-0x00000000754F0000-memory.dmp

memory/3264-1-0x0000000000770000-0x00000000008AC000-memory.dmp

memory/3264-2-0x0000000005270000-0x000000000530C000-memory.dmp

memory/3264-3-0x00000000058C0000-0x0000000005E64000-memory.dmp

memory/3264-4-0x00000000053B0000-0x0000000005442000-memory.dmp

memory/3264-5-0x0000000005570000-0x0000000005580000-memory.dmp

memory/3264-6-0x0000000005340000-0x000000000534A000-memory.dmp

memory/3264-7-0x00000000055E0000-0x0000000005636000-memory.dmp

memory/3264-8-0x00000000062F0000-0x0000000006302000-memory.dmp

memory/3264-9-0x0000000074D40000-0x00000000754F0000-memory.dmp

memory/3264-10-0x0000000005570000-0x0000000005580000-memory.dmp

memory/3264-11-0x0000000006DD0000-0x0000000006E4C000-memory.dmp

memory/3264-12-0x0000000006E50000-0x0000000006E84000-memory.dmp

memory/4408-13-0x0000000000400000-0x0000000000428000-memory.dmp

memory/3264-15-0x0000000074D40000-0x00000000754F0000-memory.dmp

memory/4408-16-0x0000000001460000-0x00000000017AA000-memory.dmp