Malware Analysis Report

2024-11-13 18:36

Sample ID 240227-v4cygsfb26
Target a9bfb5f9fb5f0f3198961ed500f9a7bc
SHA256 c44a61a1925649996e0e2ed2cef31e688d74d191a99fd5a827fab6714d4c1b80
Tags
xtremerat persistence rat spyware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c44a61a1925649996e0e2ed2cef31e688d74d191a99fd5a827fab6714d4c1b80

Threat Level: Known bad

The file a9bfb5f9fb5f0f3198961ed500f9a7bc was found to be: Known bad.

Malicious Activity Summary

xtremerat persistence rat spyware

Detect XtremeRAT payload

XtremeRAT

Suspicious use of SetThreadContext

Enumerates physical storage devices

Program crash

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-27 17:32

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-27 17:32

Reported

2024-02-27 17:34

Platform

win10v2004-20240226-en

Max time kernel

148s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe

"C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1344 -ip 1344

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1344 -s 224

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 185.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 167.109.18.2.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 206.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 182.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 63.141.182.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-27 17:32

Reported

2024-02-27 17:35

Platform

win7-20240221-en

Max time kernel

162s

Max time network

131s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.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
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
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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2164 set thread context of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 2164 wrote to memory of 1712 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe
PID 1712 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Windows\SysWOW64\svchost.exe
PID 1712 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Windows\SysWOW64\svchost.exe
PID 1712 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Windows\SysWOW64\svchost.exe
PID 1712 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Windows\SysWOW64\svchost.exe
PID 1712 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Windows\SysWOW64\svchost.exe
PID 1712 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1712 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1712 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1712 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 1712 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe C:\Program Files\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe

"C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe"

C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.exe

"C:\Users\Admin\AppData\Local\Temp\a9bfb5f9fb5f0f3198961ed500f9a7bc.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/1712-2-0x0000000010000000-0x000000001004A000-memory.dmp

memory/1712-3-0x0000000010000000-0x000000001004A000-memory.dmp

memory/1712-4-0x0000000010000000-0x000000001004A000-memory.dmp

memory/1712-5-0x0000000010000000-0x000000001004A000-memory.dmp

memory/1712-6-0x0000000010000000-0x000000001004A000-memory.dmp

memory/1712-7-0x0000000010000000-0x000000001004A000-memory.dmp

memory/1712-8-0x0000000010000000-0x000000001004A000-memory.dmp

memory/1712-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1712-11-0x0000000010000000-0x000000001004A000-memory.dmp

memory/1712-12-0x0000000010000000-0x000000001004A000-memory.dmp

memory/1712-13-0x0000000010000000-0x000000001004A000-memory.dmp

memory/1712-15-0x0000000010000000-0x000000001004A000-memory.dmp

memory/2164-14-0x0000000000400000-0x0000000000464000-memory.dmp

memory/1712-19-0x0000000010000000-0x000000001004A000-memory.dmp

memory/2528-20-0x0000000010000000-0x000000001004A000-memory.dmp