Malware Analysis Report

2025-04-13 10:56

Sample ID 231224-wc51mabcgr
Target 0951e0d47ebe1b1800d5328d31d27277
SHA256 a9281b082b6a93be2a647fe04c54af6d3cf3bab6673d19ad6354bb3b60404fea
Tags
xloader ajs8 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

a9281b082b6a93be2a647fe04c54af6d3cf3bab6673d19ad6354bb3b60404fea

Threat Level: Known bad

The file 0951e0d47ebe1b1800d5328d31d27277 was found to be: Known bad.

Malicious Activity Summary

xloader ajs8 loader rat

Xloader

CustAttr .NET packer

Xloader payload

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-24 17:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-24 17:47

Reported

2023-12-24 20:41

Platform

win7-20231215-en

Max time kernel

117s

Max time network

132s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.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 2056 set thread context of 2744 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2056 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe
PID 2056 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe
PID 2056 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe
PID 2056 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe
PID 2056 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe
PID 2056 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe
PID 2056 wrote to memory of 2744 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe
PID 2744 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Windows\SysWOW64\WerFault.exe
PID 2744 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Windows\SysWOW64\WerFault.exe
PID 2744 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Windows\SysWOW64\WerFault.exe
PID 2744 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe

"C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe"

C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe

"C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2744 -s 36

Network

N/A

Files

memory/2056-0-0x00000000008A0000-0x00000000009A8000-memory.dmp

memory/2056-1-0x00000000745B0000-0x0000000074C9E000-memory.dmp

memory/2056-2-0x0000000004D80000-0x0000000004DC0000-memory.dmp

memory/2056-3-0x0000000000410000-0x0000000000422000-memory.dmp

memory/2056-4-0x00000000745B0000-0x0000000074C9E000-memory.dmp

memory/2056-5-0x0000000004D80000-0x0000000004DC0000-memory.dmp

memory/2056-6-0x00000000058E0000-0x000000000597E000-memory.dmp

memory/2056-7-0x0000000002170000-0x000000000219E000-memory.dmp

memory/2744-8-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2744-10-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2744-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2744-13-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2056-14-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-24 17:47

Reported

2023-12-24 20:40

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.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 2640 set thread context of 3448 N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe

"C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe"

C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe

"C:\Users\Admin\AppData\Local\Temp\0951e0d47ebe1b1800d5328d31d27277.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa 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 23.177.190.20.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
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
GB 96.17.178.176:80 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp
GB 96.16.110.114:80 tcp
GB 96.17.178.176:80 tcp
US 138.91.171.81:80 tcp
GB 96.17.178.176:80 tcp
GB 96.17.178.176:80 tcp

Files

memory/2640-1-0x0000000000C90000-0x0000000000D98000-memory.dmp

memory/2640-0-0x0000000074E00000-0x00000000755B0000-memory.dmp

memory/2640-3-0x0000000005770000-0x0000000005802000-memory.dmp

memory/2640-4-0x00000000058E0000-0x000000000597C000-memory.dmp

memory/2640-2-0x0000000005DF0000-0x0000000006394000-memory.dmp

memory/2640-5-0x0000000005B60000-0x0000000005B70000-memory.dmp

memory/2640-6-0x0000000005840000-0x000000000584A000-memory.dmp

memory/2640-7-0x0000000005AF0000-0x0000000005B02000-memory.dmp

memory/2640-8-0x0000000074E00000-0x00000000755B0000-memory.dmp

memory/2640-9-0x0000000005B60000-0x0000000005B70000-memory.dmp

memory/2640-10-0x0000000007120000-0x00000000071BE000-memory.dmp

memory/2640-11-0x0000000006DF0000-0x0000000006E1E000-memory.dmp

memory/3448-12-0x0000000000400000-0x0000000000429000-memory.dmp

memory/2640-14-0x0000000074E00000-0x00000000755B0000-memory.dmp

memory/3448-15-0x0000000001740000-0x0000000001A8A000-memory.dmp

memory/3448-16-0x0000000001740000-0x0000000001A8A000-memory.dmp