Malware Analysis Report

2024-08-06 18:13

Sample ID 240701-myfhesxdjf
Target sigma.exe
SHA256 1396bfabd8e337f2f2349d0c3fd6f4fdb925adeb2ead8357b61bb0896d9d618a
Tags
xenorat rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1396bfabd8e337f2f2349d0c3fd6f4fdb925adeb2ead8357b61bb0896d9d618a

Threat Level: Known bad

The file sigma.exe was found to be: Known bad.

Malicious Activity Summary

xenorat rat trojan

Xenorat family

XenorRat

Checks computer location settings

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Scheduled Task/Job: Scheduled Task

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Persistence
TA0003
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Privilege Escalation
TA0004
Scheduled Task/Job
T1053
Scheduled Task
T1053.005
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-07-01 10:52

Signatures

Xenorat family

xenorat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-01 10:52

Reported

2024-07-01 10:57

Platform

win10v2004-20240508-en

Max time kernel

299s

Max time network

53s

Command Line

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

Signatures

XenorRat

trojan rat xenorat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\sigma.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Scheduled Task/Job: Scheduled Task

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1832 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\sigma.exe C:\Users\Admin\AppData\Roaming\XenoManager\sigma.exe
PID 1832 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\sigma.exe C:\Users\Admin\AppData\Roaming\XenoManager\sigma.exe
PID 1832 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\sigma.exe C:\Users\Admin\AppData\Roaming\XenoManager\sigma.exe
PID 1712 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Roaming\XenoManager\sigma.exe C:\Windows\SysWOW64\schtasks.exe
PID 1712 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Roaming\XenoManager\sigma.exe C:\Windows\SysWOW64\schtasks.exe
PID 1712 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Roaming\XenoManager\sigma.exe C:\Windows\SysWOW64\schtasks.exe

Processes

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

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

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

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

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /Create /TN "WIindows Security" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6571.tmp" /F

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

memory/1832-0-0x000000007482E000-0x000000007482F000-memory.dmp

memory/1832-1-0x0000000000F70000-0x0000000000F82000-memory.dmp

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

MD5 04ebe5e1cd3f1f4ac07ccba6c357d5c7
SHA1 71ae4ea691a78283180f2a8a3c44d1f413fa44de
SHA256 1396bfabd8e337f2f2349d0c3fd6f4fdb925adeb2ead8357b61bb0896d9d618a
SHA512 d8f93cdc0c0d19bcf714640f71eb568e93c30b196815002edc719436ad7bddc81b57ec52de2b89109614e049334d445fb11ad564821d9c0bd500bc4535da39ed

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

MD5 916851e072fbabc4796d8916c5131092
SHA1 d48a602229a690c512d5fdaf4c8d77547a88e7a2
SHA256 7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d
SHA512 07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

memory/1712-15-0x0000000074820000-0x0000000074FD0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp6571.tmp

MD5 66032aa5781de4895154a2b93e15815d
SHA1 3afdb800efb8896b3647de47265c0fb5819eb6ce
SHA256 86cbcaac391b2315640f5205e9787c91d1333fd9ca951e1562f87697563e1979
SHA512 2013c67df8656ac1166378fc210be99a479fb171e059e87653692a66d828bce105e245cf4f317b2b4e9bbc9592956b4290bef82b32030f8dcd55db56fe14de25

memory/1712-18-0x0000000074820000-0x0000000074FD0000-memory.dmp

memory/1712-19-0x0000000074820000-0x0000000074FD0000-memory.dmp