Malware Analysis Report

2024-10-19 07:06

Sample ID 231225-lh7fjaghcl
Target ARK_Trainer_v0.9.9.9.exe
SHA256 21a174a42902e4e830e224ea8943c76f1a0730edafa280a99b09b5597c96af95
Tags
marsstealer default spyware stealer
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

21a174a42902e4e830e224ea8943c76f1a0730edafa280a99b09b5597c96af95

Threat Level: Known bad

The file ARK_Trainer_v0.9.9.9.exe was found to be: Known bad.

Malicious Activity Summary

marsstealer default spyware stealer

Mars Stealer

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Reads user/profile data of web browsers

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-25 09:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-25 09:33

Reported

2023-12-25 09:37

Platform

win7-20231215-en

Max time kernel

128s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe"

Signatures

Mars Stealer

stealer marsstealer

Reads user/profile data of web browsers

spyware stealer

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2596 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe
PID 2596 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe
PID 2596 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe
PID 2596 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe
PID 2592 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe C:\Windows\SysWOW64\WerFault.exe
PID 2592 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe C:\Windows\SysWOW64\WerFault.exe
PID 2592 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe C:\Windows\SysWOW64\WerFault.exe
PID 2592 wrote to memory of 812 N/A C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe

"C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe"

C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe

"C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2592 -s 816

Network

Country Destination Domain Proto
US 8.8.8.8:53 moscow-post.ru udp
RU 185.71.67.60:80 moscow-post.ru tcp
US 8.8.8.8:53 www.moscow-post.ru udp
RU 185.71.67.60:80 www.moscow-post.ru tcp
US 8.8.8.8:53 www.moscow-post.su udp
RU 185.71.67.60:80 www.moscow-post.su tcp

Files

memory/2596-0-0x0000000000880000-0x000000000090E000-memory.dmp

memory/2596-1-0x0000000074D70000-0x000000007545E000-memory.dmp

memory/2596-2-0x00000000049F0000-0x0000000004A30000-memory.dmp

\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\M4YI91.exe

MD5 80ffae827667bd2a86cc1d1b17745ba3
SHA1 dae012b46c61ce189319b7d04a7d405db3f733f2
SHA256 dd9285cabf5ff86f34600c4b947c5cb2d442fed6391b14b52c6f0c94c8fff276
SHA512 4ac4ecbd086bd340879676f2c7d3d83b684f0c3ba688dc9a289910c531b1d90ad67c34fc799c51a65c1339d52533aacaed117eedd847fa024232b882908c9442

memory/2596-11-0x00000000044E0000-0x000000000451D000-memory.dmp

memory/2596-13-0x00000000044E0000-0x000000000451D000-memory.dmp

memory/2592-14-0x0000000000400000-0x000000000043D000-memory.dmp

memory/2596-15-0x0000000074D70000-0x000000007545E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-25 09:33

Reported

2023-12-25 09:35

Platform

win10v2004-20231215-en

Max time kernel

17s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe"

Signatures

Mars Stealer

stealer marsstealer

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Start Menu\VNC13YMPA0D.exe N/A

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\ProgramData\Start Menu\VNC13YMPA0D.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe

"C:\Users\Admin\AppData\Local\Temp\ARK_Trainer_v0.9.9.9.exe"

C:\ProgramData\Start Menu\VNC13YMPA0D.exe

"C:\ProgramData\Start Menu\VNC13YMPA0D.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4916 -ip 4916

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 1432

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 2.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 moscow-post.ru udp
RU 185.71.67.60:80 moscow-post.ru tcp
US 8.8.8.8:53 www.moscow-post.ru udp
RU 185.71.67.60:80 www.moscow-post.ru tcp
US 8.8.8.8:53 60.67.71.185.in-addr.arpa udp
US 8.8.8.8:53 www.moscow-post.su udp
RU 185.71.67.60:80 www.moscow-post.su tcp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 178.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 20.231.121.79:80 tcp
US 52.111.229.43:443 tcp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
NL 20.103.156.88:443 tcp
NL 20.103.156.88:443 tcp
NL 20.103.156.88:443 tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp

Files

memory/2036-1-0x0000000075280000-0x0000000075A30000-memory.dmp

memory/2036-0-0x0000000000F50000-0x0000000000FDE000-memory.dmp

memory/2036-2-0x0000000005940000-0x0000000005950000-memory.dmp

memory/2036-14-0x0000000075280000-0x0000000075A30000-memory.dmp

memory/4916-13-0x0000000000400000-0x000000000043D000-memory.dmp

memory/4916-16-0x0000000000400000-0x000000000043D000-memory.dmp