Malware Analysis Report

2024-08-06 14:52

Sample ID 240417-b9lb9sbh7s
Target 8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe
SHA256 8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3
Tags
marsstealer default stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3

Threat Level: Known bad

The file 8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe was found to be: Known bad.

Malicious Activity Summary

marsstealer default stealer

Mars Stealer

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

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
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

2024-04-17 01:50

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-17 01:50

Reported

2024-04-17 01:53

Platform

win10v2004-20240412-en

Max time kernel

148s

Max time network

153s

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-1-5-21-4092317236-2027488869-1227795436-1000\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\{9E15EC5C-A48F-4E70-8C04-E1AFD246D177}\IV0F5NVM.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2356 wrote to memory of 1284 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Local\Temp\{9E15EC5C-A48F-4E70-8C04-E1AFD246D177}\IV0F5NVM.exe
PID 2356 wrote to memory of 1284 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Local\Temp\{9E15EC5C-A48F-4E70-8C04-E1AFD246D177}\IV0F5NVM.exe
PID 2356 wrote to memory of 1284 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Local\Temp\{9E15EC5C-A48F-4E70-8C04-E1AFD246D177}\IV0F5NVM.exe

Processes

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

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

C:\Users\Admin\AppData\Local\Temp\{9E15EC5C-A48F-4E70-8C04-E1AFD246D177}\IV0F5NVM.exe

"C:\Users\Admin\AppData\Local\Temp\{9E15EC5C-A48F-4E70-8C04-E1AFD246D177}\IV0F5NVM.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.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 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 kenesrakishev.net udp
US 173.201.180.75:80 kenesrakishev.net tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 28.143.109.104.in-addr.arpa udp
US 173.201.180.75:80 kenesrakishev.net tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 173.201.180.75:80 kenesrakishev.net tcp
US 8.8.8.8:53 14.179.89.13.in-addr.arpa udp

Files

memory/2356-0-0x0000000000B40000-0x0000000000BB6000-memory.dmp

memory/2356-1-0x00000000748C0000-0x0000000075070000-memory.dmp

memory/2356-2-0x0000000005A40000-0x0000000005FE4000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\{9E15EC5C-A48F-4E70-8C04-E1AFD246D177}\IV0F5NVM.exe

MD5 e4cb1bcdc60f4f2fcdaa6a68c8493a5f
SHA1 bfd7d3a86c2c99c0954f9091efc406d11c98131b
SHA256 757398277a44e255c9fc26eb7ebb77aa4b3997a4894ac785e74bea591c053979
SHA512 86581c1886d555350241a7cdd30a726700f1d8d65a852a3cc4fde332aad3f33361dbb93e570f7ae724501ff46fd5c8447852ba4bb707a74993025e1cfabf6219

memory/1284-11-0x0000000000400000-0x000000000043D000-memory.dmp

memory/2356-12-0x0000000006530000-0x00000000065C2000-memory.dmp

memory/2356-14-0x00000000748C0000-0x0000000075070000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-17 01:50

Reported

2024-04-17 01:53

Platform

win7-20240221-en

Max time kernel

144s

Max time network

147s

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\Roaming\Media Center Programs\VTIHUC5V.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 2000 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Roaming\Media Center Programs\VTIHUC5V.exe
PID 2000 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Roaming\Media Center Programs\VTIHUC5V.exe
PID 2000 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Roaming\Media Center Programs\VTIHUC5V.exe
PID 2000 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\8996579058ec9c3a04bd2496bd1807da60fb38c2ed8408c626c5686119cdc8e3.exe C:\Users\Admin\AppData\Roaming\Media Center Programs\VTIHUC5V.exe

Processes

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

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

C:\Users\Admin\AppData\Roaming\Media Center Programs\VTIHUC5V.exe

"C:\Users\Admin\AppData\Roaming\Media Center Programs\VTIHUC5V.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/2000-1-0x0000000074BA0000-0x000000007528E000-memory.dmp

memory/2000-0-0x0000000000C80000-0x0000000000CF6000-memory.dmp

\Users\Admin\AppData\Roaming\Media Center Programs\VTIHUC5V.exe

MD5 e4cb1bcdc60f4f2fcdaa6a68c8493a5f
SHA1 bfd7d3a86c2c99c0954f9091efc406d11c98131b
SHA256 757398277a44e255c9fc26eb7ebb77aa4b3997a4894ac785e74bea591c053979
SHA512 86581c1886d555350241a7cdd30a726700f1d8d65a852a3cc4fde332aad3f33361dbb93e570f7ae724501ff46fd5c8447852ba4bb707a74993025e1cfabf6219

memory/2000-10-0x0000000000AE0000-0x0000000000B1D000-memory.dmp

memory/2532-12-0x0000000000400000-0x000000000043D000-memory.dmp

memory/2000-13-0x0000000074BA0000-0x000000007528E000-memory.dmp