Malware Analysis Report

2024-08-06 14:51

Sample ID 240418-bref1agc7z
Target 588fe99f2631db84a27bbfceca342f8c.bin
SHA256 724d6bc716544962bc5a964381e3ba5689c50e28ebd4fb3fb59a3b8ae1111952
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

724d6bc716544962bc5a964381e3ba5689c50e28ebd4fb3fb59a3b8ae1111952

Threat Level: Known bad

The file 588fe99f2631db84a27bbfceca342f8c.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 01:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-18 01:22

Reported

2024-04-18 01:25

Platform

win7-20240220-en

Max time kernel

142s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe"

Signatures

Mars Stealer

stealer marsstealer

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Adobe\SJ89U4U1.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2184 wrote to memory of 2352 N/A C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe C:\Users\Admin\AppData\Roaming\Adobe\SJ89U4U1.exe
PID 2184 wrote to memory of 2352 N/A C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe C:\Users\Admin\AppData\Roaming\Adobe\SJ89U4U1.exe
PID 2184 wrote to memory of 2352 N/A C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe C:\Users\Admin\AppData\Roaming\Adobe\SJ89U4U1.exe
PID 2184 wrote to memory of 2352 N/A C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe C:\Users\Admin\AppData\Roaming\Adobe\SJ89U4U1.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe

"C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe"

C:\Users\Admin\AppData\Roaming\Adobe\SJ89U4U1.exe

"C:\Users\Admin\AppData\Roaming\Adobe\SJ89U4U1.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/2184-0-0x0000000000FB0000-0x0000000001026000-memory.dmp

memory/2184-1-0x0000000074D50000-0x000000007543E000-memory.dmp

\Users\Admin\AppData\Roaming\Adobe\SJ89U4U1.exe

MD5 3f2f75660ddca3660f254222ec2e54d9
SHA1 9e5710c00fc26b4d26d95c644040f56b652708b0
SHA256 ffe8a2116f63f9d5cdb408f3d1e8f476ea595b7323bc95808e33b45084f2e14f
SHA512 fee657800f455a2026a5ba4fb7e424bf52e77d1922c91fadd2f5a4284269eaa93c860065da13a439ea6c79ea855ecc58b99b9a293b6e64e91cc2dffd5ef92bbd

memory/2184-11-0x00000000006B0000-0x00000000006ED000-memory.dmp

memory/2184-12-0x00000000006B0000-0x00000000006ED000-memory.dmp

memory/2352-13-0x0000000000400000-0x000000000043D000-memory.dmp

memory/2184-14-0x0000000074D50000-0x000000007543E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-18 01:22

Reported

2024-04-18 01:25

Platform

win10v2004-20240412-en

Max time kernel

119s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe"

Signatures

Mars Stealer

stealer marsstealer

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.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\HQUU7B0V.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3640 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\HQUU7B0V.exe
PID 3640 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\HQUU7B0V.exe
PID 3640 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\HQUU7B0V.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe

"C:\Users\Admin\AppData\Local\Temp\5452dc39044f0d4fc32236dda5c4ce986ae5aa33e6e1b653b3ed53fdf1ca745a.exe"

C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\HQUU7B0V.exe

"C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\HQUU7B0V.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 69.31.126.40.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 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 156.33.209.4.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 kenesrakishev.net udp
US 173.201.180.75:80 kenesrakishev.net tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 21.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 173.201.180.75:80 kenesrakishev.net tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 173.201.180.75:80 kenesrakishev.net tcp

Files

memory/3640-1-0x0000000075120000-0x00000000758D0000-memory.dmp

memory/3640-0-0x0000000000750000-0x00000000007C6000-memory.dmp

memory/3640-2-0x0000000005680000-0x0000000005C24000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_10.0.40219\HQUU7B0V.exe

MD5 3f2f75660ddca3660f254222ec2e54d9
SHA1 9e5710c00fc26b4d26d95c644040f56b652708b0
SHA256 ffe8a2116f63f9d5cdb408f3d1e8f476ea595b7323bc95808e33b45084f2e14f
SHA512 fee657800f455a2026a5ba4fb7e424bf52e77d1922c91fadd2f5a4284269eaa93c860065da13a439ea6c79ea855ecc58b99b9a293b6e64e91cc2dffd5ef92bbd

memory/2664-11-0x0000000000400000-0x000000000043D000-memory.dmp

memory/3640-12-0x0000000005190000-0x0000000005222000-memory.dmp

memory/3640-14-0x0000000075120000-0x00000000758D0000-memory.dmp