Malware Analysis Report

2024-10-23 20:26

Sample ID 240901-kq3a4swenq
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: behavioral2

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

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Scheduled Task/Job: Scheduled Task

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-01 08:49

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 08:49

Reported

2024-09-02 01:41

Platform

win7-20240704-en

Max time kernel

589s

Max time network

360s

Command Line

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

Signatures

XenorRat

trojan rat xenorat

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fixer\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:\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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.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\tmpADEB.tmp" /F

Network

Country Destination Domain Proto
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
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
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/2240-0-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

memory/2240-1-0x00000000002E0000-0x00000000002F2000-memory.dmp

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

MD5 5ef7344600895b2f13d5d8e44537d946
SHA1 bdf05e86b0c923a0c1edead40cc50819b185d4c0
SHA256 50866224673bc35d89ba701eaf3e794f452fecf308e9fab36be21fe8c486a9d0
SHA512 9563e4b2c98e3ccc8b47c9739a9a74680c9782f1bd18d67c80fb5f85e6bc667df72978b3d7858ddb30ba522d574215b720a2792b7e9e6d34759d0cdc2eb43c69

memory/1652-9-0x0000000000050000-0x0000000000062000-memory.dmp

memory/1652-11-0x0000000074D80000-0x000000007546E000-memory.dmp

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

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

memory/1652-13-0x0000000074D80000-0x000000007546E000-memory.dmp

memory/1652-14-0x0000000074D80000-0x000000007546E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-01 08:49

Reported

2024-09-02 01:42

Platform

win10v2004-20240802-en

Max time kernel

594s

Max time network

439s

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-1-5-21-523280732-2327480845-3730041215-1000\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:\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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.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\tmp7196.tmp" /F

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
N/A 127.0.0.1:69 tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 37.56.20.217.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
N/A 127.0.0.1:69 tcp
N/A 127.0.0.1:69 tcp
US 8.8.8.8:53 29.243.111.52.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 95.16.208.104.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/4044-0-0x0000000074E0E000-0x0000000074E0F000-memory.dmp

memory/4044-1-0x0000000000730000-0x0000000000742000-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/4936-16-0x0000000074E00000-0x00000000755B0000-memory.dmp

memory/4936-17-0x0000000074E00000-0x00000000755B0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp7196.tmp

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

memory/4936-19-0x0000000074E00000-0x00000000755B0000-memory.dmp