Malware Analysis Report

2024-12-07 21:18

Sample ID 240204-qsewgsahc6
Target VirusShare_546dae0132f9dac504e612c9dc3c4163
SHA256 d3e050241bc051ef74ac9f29b00a6940e86b7d9a4e379f053af78c7158c7833d
Tags
xtremerat persistence rat spyware upx
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

d3e050241bc051ef74ac9f29b00a6940e86b7d9a4e379f053af78c7158c7833d

Threat Level: Known bad

The file VirusShare_546dae0132f9dac504e612c9dc3c4163 was found to be: Known bad.

Malicious Activity Summary

xtremerat persistence rat spyware upx

Detect XtremeRAT payload

XtremeRAT

Detects executables packed with SmartAssembly

UPX dump on OEP (original entry point)

Checks computer location settings

Executes dropped EXE

UPX packed file

Drops desktop.ini file(s)

Drops file in Windows directory

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-04 13:31

Signatures

Detects executables packed with SmartAssembly

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-04 13:31

Reported

2024-02-04 13:33

Platform

win7-20231215-en

Max time kernel

150s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe"

Signatures

Detect XtremeRAT payload

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

XtremeRAT

persistence spyware rat xtremerat

UPX dump on OEP (original entry point)

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

Executes dropped EXE

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

UPX packed file

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

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2916 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2916 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2916 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2916 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2768 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 2768 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 2768 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 2768 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 2768 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 2768 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2768 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2768 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2768 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2768 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe

"C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe"

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

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

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Program Files\Internet Explorer\iexplore.exe

"C:\Program Files\Internet Explorer\iexplore.exe"

Network

N/A

Files

memory/2916-0-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

memory/2916-2-0x0000000000A50000-0x0000000000AD0000-memory.dmp

memory/2916-1-0x0000000000680000-0x000000000068A000-memory.dmp

memory/2916-3-0x0000000000B60000-0x0000000000B70000-memory.dmp

memory/2916-5-0x0000000000A50000-0x0000000000AD0000-memory.dmp

memory/2916-4-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

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

MD5 17a25ac941c0c8120792bb261e9610de
SHA1 23edcf940b585ee7d8ff4d6ee3ab7e264f1a2ae2
SHA256 2aca490f5938f1db06e8e571f429b34bd61d39c3c0a62275ef8773f5ceba4c05
SHA512 23d94f02f206525eee55a9884a95b27eefcee1f139333adbf5cec55fbb64da8eecf3acd703859ee76413dfd28a95f18bc580cfd04cac4834b336625b916ca153

memory/2768-13-0x0000000010000000-0x000000001004B000-memory.dmp

memory/2672-14-0x0000000010000000-0x000000001004B000-memory.dmp

memory/2768-17-0x0000000010000000-0x000000001004B000-memory.dmp

memory/2916-18-0x000007FEF5BC0000-0x000007FEF655D000-memory.dmp

memory/2916-19-0x0000000000A50000-0x0000000000AD0000-memory.dmp

memory/2916-20-0x0000000000A50000-0x0000000000AD0000-memory.dmp

memory/2672-21-0x0000000010000000-0x000000001004B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-04 13:31

Reported

2024-02-04 13:33

Platform

win10v2004-20231215-en

Max time kernel

140s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe"

Signatures

Detect XtremeRAT payload

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

XtremeRAT

persistence spyware rat xtremerat

UPX dump on OEP (original entry point)

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe N/A

Executes dropped EXE

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

UPX packed file

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

Drops desktop.ini file(s)

Description Indicator Process Target
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\assembly C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe N/A
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe

"C:\Users\Admin\AppData\Local\Temp\VirusShare_546dae0132f9dac504e612c9dc3c4163.exe"

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

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

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4532 -ip 4532

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 480

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4532 -ip 4532

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 476

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 27.73.42.20.in-addr.arpa udp

Files

memory/228-0-0x00007FFD79960000-0x00007FFD7A301000-memory.dmp

memory/228-1-0x00007FFD79960000-0x00007FFD7A301000-memory.dmp

memory/228-2-0x0000000000C40000-0x0000000000C50000-memory.dmp

memory/228-3-0x000000001B860000-0x000000001BD2E000-memory.dmp

memory/228-4-0x0000000000BD0000-0x0000000000BDA000-memory.dmp

memory/228-7-0x000000001BD70000-0x000000001BD80000-memory.dmp

memory/228-8-0x000000001BFA0000-0x000000001C046000-memory.dmp

memory/228-9-0x000000001C0F0000-0x000000001C18C000-memory.dmp

memory/228-10-0x0000000000BC0000-0x0000000000BC8000-memory.dmp

memory/228-11-0x000000001C380000-0x000000001C3CC000-memory.dmp

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

MD5 17a25ac941c0c8120792bb261e9610de
SHA1 23edcf940b585ee7d8ff4d6ee3ab7e264f1a2ae2
SHA256 2aca490f5938f1db06e8e571f429b34bd61d39c3c0a62275ef8773f5ceba4c05
SHA512 23d94f02f206525eee55a9884a95b27eefcee1f139333adbf5cec55fbb64da8eecf3acd703859ee76413dfd28a95f18bc580cfd04cac4834b336625b916ca153

memory/2572-19-0x0000000010000000-0x000000001004B000-memory.dmp

memory/4532-21-0x0000000010000000-0x000000001004B000-memory.dmp

memory/2572-22-0x0000000010000000-0x000000001004B000-memory.dmp

memory/4532-23-0x0000000010000000-0x000000001004B000-memory.dmp

memory/228-24-0x00007FFD79960000-0x00007FFD7A301000-memory.dmp

memory/228-25-0x0000000000C40000-0x0000000000C50000-memory.dmp