Malware Analysis Report

2024-08-06 14:52

Sample ID 240417-blwhbshe64
Target 32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe
SHA256 32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775
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

32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775

Threat Level: Known bad

The file 32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe 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

2024-04-17 01:14

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-17 01:14

Reported

2024-04-17 01:17

Platform

win7-20240221-en

Max time kernel

144s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe"

Signatures

Mars Stealer

stealer marsstealer

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\W4UST12C5I.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2912 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\W4UST12C5I.exe
PID 2912 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\W4UST12C5I.exe
PID 2912 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\W4UST12C5I.exe
PID 2912 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\W4UST12C5I.exe

Processes

C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe

"C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe"

C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\W4UST12C5I.exe

"C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\W4UST12C5I.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/2912-0-0x0000000000B10000-0x0000000000BB0000-memory.dmp

memory/2912-1-0x0000000074690000-0x0000000074D7E000-memory.dmp

memory/2912-2-0x0000000004C60000-0x0000000004CA0000-memory.dmp

\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\W4UST12C5I.exe

MD5 6c919bd1a5cf9a961aabade412f587cb
SHA1 5faaf4f33cb37eae2dc909d9b01c46bd9c7eb198
SHA256 dcfd1325f755080466602c7dcf44588b2e57ba7e59c47ba561d750c0f28a4be1
SHA512 de5a6e11b85ed4c5b13492f0b679f00c419a2d0f2ff06547cd385af34ae0ca3d0de614f082b2b03095e8c10bed2c304e123a2ad4ee56d687aeb5ebbab5399967

memory/2912-11-0x0000000001FC0000-0x0000000001FFD000-memory.dmp

memory/2912-13-0x0000000001FC0000-0x0000000001FFD000-memory.dmp

memory/2888-14-0x0000000000400000-0x000000000043D000-memory.dmp

memory/2912-15-0x0000000074690000-0x0000000074D7E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-17 01:14

Reported

2024-04-17 01:17

Platform

win10v2004-20240412-en

Max time kernel

119s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe"

Signatures

Mars Stealer

stealer marsstealer

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4328 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe C:\Users\Admin\AppData\Roaming\Adobe\L.exe
PID 4328 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe C:\Users\Admin\AppData\Roaming\Adobe\L.exe
PID 4328 wrote to memory of 4064 N/A C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe C:\Users\Admin\AppData\Roaming\Adobe\L.exe

Processes

C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe

"C:\Users\Admin\AppData\Local\Temp\32429b9055e49788020d2baccfd472075a26cbdd1c70d0693150cdf963975775.exe"

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

"C:\Users\Admin\AppData\Roaming\Adobe\L.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.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 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.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 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 173.201.180.75:80 kenesrakishev.net tcp
US 173.201.180.75:80 kenesrakishev.net tcp

Files

memory/4328-0-0x0000000000EB0000-0x0000000000F50000-memory.dmp

memory/4328-1-0x0000000074FE0000-0x0000000075790000-memory.dmp

memory/4328-2-0x0000000005A60000-0x0000000005A70000-memory.dmp

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

MD5 6c919bd1a5cf9a961aabade412f587cb
SHA1 5faaf4f33cb37eae2dc909d9b01c46bd9c7eb198
SHA256 dcfd1325f755080466602c7dcf44588b2e57ba7e59c47ba561d750c0f28a4be1
SHA512 de5a6e11b85ed4c5b13492f0b679f00c419a2d0f2ff06547cd385af34ae0ca3d0de614f082b2b03095e8c10bed2c304e123a2ad4ee56d687aeb5ebbab5399967

memory/4064-12-0x0000000000400000-0x000000000043D000-memory.dmp

memory/4328-13-0x0000000074FE0000-0x0000000075790000-memory.dmp