Malware Analysis Report

2024-10-23 20:26

Sample ID 240901-kr5smaxamb
Target Password a.rar
SHA256 fe334383fda5544da762cfdf0e63b67f8353697bd978954eab09c6edba951488
Tags
xenorat discovery rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

fe334383fda5544da762cfdf0e63b67f8353697bd978954eab09c6edba951488

Threat Level: Known bad

The file Password a.rar was found to be: Known bad.

Malicious Activity Summary

xenorat discovery rat trojan

Xenorat family

XenorRat

Checks computer location settings

Executes dropped EXE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Scheduled Task/Job: Scheduled Task

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-01 08:51

Signatures

Xenorat family

xenorat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-01 08:51

Reported

2024-09-01 23:04

Platform

win10v2004-20240802-en

Max time kernel

594s

Max time network

435s

Command Line

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

Signatures

XenorRat

trojan rat xenorat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Fixer\Fixer.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\XenoManager\Fixer.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Fixer\Fixer.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\XenoManager\Fixer.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Processes

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

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

C:\Users\Admin\AppData\Roaming\XenoManager\Fixer.exe

"C:\Users\Admin\AppData\Roaming\XenoManager\Fixer.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /Create /TN "System-33" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7D5E.tmp" /F

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 71.190.18.2.in-addr.arpa udp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
US 8.8.8.8:53 34.56.20.217.in-addr.arpa udp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
US 8.8.8.8:53 10.179.89.13.in-addr.arpa udp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp

Files

memory/4312-0-0x000000007534E000-0x000000007534F000-memory.dmp

memory/4312-1-0x0000000000800000-0x0000000000812000-memory.dmp

C:\Users\Admin\AppData\Roaming\XenoManager\Fixer.exe

MD5 5ef7344600895b2f13d5d8e44537d946
SHA1 bdf05e86b0c923a0c1edead40cc50819b185d4c0
SHA256 50866224673bc35d89ba701eaf3e794f452fecf308e9fab36be21fe8c486a9d0
SHA512 9563e4b2c98e3ccc8b47c9739a9a74680c9782f1bd18d67c80fb5f85e6bc667df72978b3d7858ddb30ba522d574215b720a2792b7e9e6d34759d0cdc2eb43c69

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Fixer.exe.log

MD5 916851e072fbabc4796d8916c5131092
SHA1 d48a602229a690c512d5fdaf4c8d77547a88e7a2
SHA256 7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d
SHA512 07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

memory/4292-16-0x0000000075340000-0x0000000075AF0000-memory.dmp

memory/4292-17-0x0000000075340000-0x0000000075AF0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp7D5E.tmp

MD5 2ab093f77a33e7004e362f78c87763a8
SHA1 2a4dcef9285dd583a33c1c5195cac7a37daee193
SHA256 4691f336ef4ce21e9f11416ab10393a8d4760db2025cfc0bd59acc25e018e234
SHA512 343b32e2048b259717e04dd98ef8900f3951ca79169947f1ed642b76965d95d517bd5a7878897aee21bd4350ac96aa1240e9d7e86e0fb53b05e28da716e95d3f

memory/4292-19-0x0000000075340000-0x0000000075AF0000-memory.dmp