Malware Analysis Report

2024-10-19 07:06

Sample ID 231224-dpckqsebfr
Target bd424a7fd1d0dbb18047473d25acf79d.bin
SHA256 589305885aaab6c93b35fa797316b063a6f4ee3c86a5151a6cb19f2c875c830c
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

589305885aaab6c93b35fa797316b063a6f4ee3c86a5151a6cb19f2c875c830c

Threat Level: Known bad

The file bd424a7fd1d0dbb18047473d25acf79d.bin was found to be: Known bad.

Malicious Activity Summary

marsstealer default spyware stealer

Mars Stealer

Executes dropped EXE

Loads dropped DLL

Reads user/profile data of web browsers

Enumerates physical storage devices

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-24 03:10

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-24 03:10

Reported

2023-12-24 03:13

Platform

win7-20231215-en

Max time kernel

123s

Max time network

133s

Command Line

"C:\Users\Admin\AppData\Local\Temp\76db9e74e9f0384c822b933a464cbc1f63b4c9a0a0b064774f09d8ee946d800c.exe"

Signatures

Mars Stealer

stealer marsstealer

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Identities\EB.exe N/A

Reads user/profile data of web browsers

spyware stealer

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Roaming\Identities\EB.exe

Processes

C:\Users\Admin\AppData\Local\Temp\76db9e74e9f0384c822b933a464cbc1f63b4c9a0a0b064774f09d8ee946d800c.exe

"C:\Users\Admin\AppData\Local\Temp\76db9e74e9f0384c822b933a464cbc1f63b4c9a0a0b064774f09d8ee946d800c.exe"

C:\Users\Admin\AppData\Roaming\Identities\EB.exe

"C:\Users\Admin\AppData\Roaming\Identities\EB.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2864 -s 812

Network

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

Files

memory/2672-0-0x0000000000160000-0x00000000001D2000-memory.dmp

memory/2672-1-0x0000000074B50000-0x000000007523E000-memory.dmp

\Users\Admin\AppData\Roaming\Identities\EB.exe

MD5 b1d6d66282771bdaee20f0295991140a
SHA1 f65c534725a4aa947285ecbb2acf3f5083803152
SHA256 9697901177242e9a450aae820687ddbbd13196b5876ec77cdcb663cfbadb0053
SHA512 af0bd80c0fdb1c336268c1bcdb8b0a05a588a1ded511669f6974b10e19752bed5305fda870a9a1e61be30db14228194f84ec8da74e9836eec3506d0629fe0900

memory/2672-6-0x00000000048C0000-0x00000000048FD000-memory.dmp

memory/2864-13-0x0000000000400000-0x000000000043D000-memory.dmp

memory/2672-11-0x00000000048C0000-0x00000000048FD000-memory.dmp

memory/2672-14-0x0000000074B50000-0x000000007523E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-24 03:10

Reported

2023-12-24 03:13

Platform

win10v2004-20231215-en

Max time kernel

152s

Max time network

159s

Command Line

"C:\Users\Admin\AppData\Local\Temp\76db9e74e9f0384c822b933a464cbc1f63b4c9a0a0b064774f09d8ee946d800c.exe"

Signatures

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\76db9e74e9f0384c822b933a464cbc1f63b4c9a0a0b064774f09d8ee946d800c.exe

"C:\Users\Admin\AppData\Local\Temp\76db9e74e9f0384c822b933a464cbc1f63b4c9a0a0b064774f09d8ee946d800c.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 0.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.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 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 15.173.189.20.in-addr.arpa udp

Files

memory/1272-0-0x0000000000480000-0x00000000004F2000-memory.dmp

memory/1272-1-0x0000000074D40000-0x00000000754F0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Low\GTK3QW.exe

MD5 b1d6d66282771bdaee20f0295991140a
SHA1 f65c534725a4aa947285ecbb2acf3f5083803152
SHA256 9697901177242e9a450aae820687ddbbd13196b5876ec77cdcb663cfbadb0053
SHA512 af0bd80c0fdb1c336268c1bcdb8b0a05a588a1ded511669f6974b10e19752bed5305fda870a9a1e61be30db14228194f84ec8da74e9836eec3506d0629fe0900

memory/1272-7-0x0000000074D40000-0x00000000754F0000-memory.dmp