Malware Analysis Report

2024-08-06 14:51

Sample ID 240418-bxb8tsge7x
Target 82132dee9a07a607146d757091782517.bin
SHA256 7c8a3fee6af3b2addadd83c7fa2a12fb47df73b9b54de07c4c56835edf74e344
Tags
marsstealer default stealer
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

7c8a3fee6af3b2addadd83c7fa2a12fb47df73b9b54de07c4c56835edf74e344

Threat Level: Known bad

The file 82132dee9a07a607146d757091782517.bin was found to be: Known bad.

Malicious Activity Summary

marsstealer default stealer

Mars Stealer

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

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

Analysis: static1

Detonation Overview

Reported

2024-04-18 01:31

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-18 01:30

Reported

2024-04-18 01:33

Platform

win7-20231129-en

Max time kernel

142s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe"

Signatures

Mars Stealer

stealer marsstealer

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\OQYFBH56.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1372 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\OQYFBH56.exe
PID 1372 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\OQYFBH56.exe
PID 1372 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\OQYFBH56.exe
PID 1372 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\OQYFBH56.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe

"C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe"

C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\OQYFBH56.exe

"C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\OQYFBH56.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 kenesrakishev.net udp
US 173.201.180.75:80 kenesrakishev.net tcp
US 173.201.180.75:80 kenesrakishev.net tcp
US 173.201.180.75:80 kenesrakishev.net tcp

Files

memory/1372-0-0x0000000001130000-0x00000000011A6000-memory.dmp

memory/1372-1-0x0000000074810000-0x0000000074EFE000-memory.dmp

\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\OQYFBH56.exe

MD5 e4cb1bcdc60f4f2fcdaa6a68c8493a5f
SHA1 bfd7d3a86c2c99c0954f9091efc406d11c98131b
SHA256 757398277a44e255c9fc26eb7ebb77aa4b3997a4894ac785e74bea591c053979
SHA512 86581c1886d555350241a7cdd30a726700f1d8d65a852a3cc4fde332aad3f33361dbb93e570f7ae724501ff46fd5c8447852ba4bb707a74993025e1cfabf6219

memory/1372-11-0x0000000000AC0000-0x0000000000AFD000-memory.dmp

memory/3012-13-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1372-12-0x0000000000AC0000-0x0000000000AFD000-memory.dmp

memory/1372-14-0x0000000074810000-0x0000000074EFE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-18 01:30

Reported

2024-04-18 01:33

Platform

win10v2004-20240412-en

Max time kernel

123s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe"

Signatures

Mars Stealer

stealer marsstealer

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\3BWRID4E.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5112 wrote to memory of 1208 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\3BWRID4E.exe
PID 5112 wrote to memory of 1208 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\3BWRID4E.exe
PID 5112 wrote to memory of 1208 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\3BWRID4E.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe

"C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe"

C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\3BWRID4E.exe

"C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\3BWRID4E.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 105.104.123.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 kenesrakishev.net udp
US 173.201.180.75:80 kenesrakishev.net tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 21.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 173.201.180.75:80 kenesrakishev.net tcp
US 173.201.180.75:80 kenesrakishev.net tcp
US 8.8.8.8:53 131.72.42.20.in-addr.arpa udp

Files

memory/5112-0-0x0000000000530000-0x00000000005A6000-memory.dmp

memory/5112-1-0x0000000074930000-0x00000000750E0000-memory.dmp

memory/5112-2-0x00000000054F0000-0x0000000005A94000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\3BWRID4E.exe

MD5 e4cb1bcdc60f4f2fcdaa6a68c8493a5f
SHA1 bfd7d3a86c2c99c0954f9091efc406d11c98131b
SHA256 757398277a44e255c9fc26eb7ebb77aa4b3997a4894ac785e74bea591c053979
SHA512 86581c1886d555350241a7cdd30a726700f1d8d65a852a3cc4fde332aad3f33361dbb93e570f7ae724501ff46fd5c8447852ba4bb707a74993025e1cfabf6219

memory/1208-11-0x0000000000400000-0x000000000043D000-memory.dmp

memory/5112-12-0x0000000005EE0000-0x0000000005F72000-memory.dmp

memory/5112-14-0x0000000074930000-0x00000000750E0000-memory.dmp