Malware Analysis Report

2025-04-14 05:15

Sample ID 210216-ys4nvxy7sa
Target e79a4eb2_extracted
SHA256 e9a5126c1aa2b05a1e6244a08284689dfff56fbb12a94eb05d8bf563ee3cad62
Tags
masslogger ransomware spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

e9a5126c1aa2b05a1e6244a08284689dfff56fbb12a94eb05d8bf563ee3cad62

Threat Level: Known bad

The file e79a4eb2_extracted was found to be: Known bad.

Malicious Activity Summary

masslogger ransomware spyware stealer

MassLogger Main Payload

MassLogger

MassLogger log file

Masslogger family

Checks computer location settings

Reads user/profile data of web browsers

Looks up external IP address via web service

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-02-16 17:41

Signatures

MassLogger Main Payload

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

Masslogger family

masslogger

Analysis: behavioral1

Detonation Overview

Submitted

2021-02-16 17:41

Reported

2021-02-16 17:44

Platform

win7v20201028

Max time kernel

22s

Max time network

29s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe"

Signatures

MassLogger

stealer spyware masslogger

MassLogger log file

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe N/A

Reads user/profile data of web browsers

spyware

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe

"C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe"

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 api.ipify.org udp
N/A 23.21.140.41:80 api.ipify.org tcp
N/A 8.8.8.8:53 smtp.yandex.com udp
N/A 77.88.21.158:587 smtp.yandex.com tcp
N/A 8.8.8.8:53 repository.certum.pl udp
N/A 2.19.195.17:80 repository.certum.pl tcp
N/A 8.8.8.8:53 www.download.windowsupdate.com udp

Files

memory/1784-2-0x0000000073E00000-0x00000000744EE000-memory.dmp

memory/1784-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

memory/1784-5-0x0000000000300000-0x000000000033E000-memory.dmp

memory/1784-6-0x0000000004300000-0x0000000004301000-memory.dmp

memory/1784-7-0x0000000004305000-0x0000000004316000-memory.dmp

memory/1784-8-0x0000000001F50000-0x0000000001F5F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2021-02-16 17:41

Reported

2021-02-16 17:44

Platform

win10v20201028

Max time kernel

24s

Max time network

112s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe

"C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe"

C:\Windows\SysWOW64\cmd.exe

"cmd" /c start /b powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe' & exit

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\e79a4eb2_extracted.exe'

Network

N/A

Files

memory/636-2-0x0000000073190000-0x000000007387E000-memory.dmp

memory/636-3-0x00000000002B0000-0x00000000002B1000-memory.dmp

memory/636-5-0x0000000005200000-0x0000000005201000-memory.dmp

memory/636-6-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

memory/636-7-0x0000000004D00000-0x0000000004D3E000-memory.dmp

memory/636-8-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

memory/636-9-0x0000000005700000-0x0000000005701000-memory.dmp

memory/636-10-0x0000000005770000-0x0000000005771000-memory.dmp

memory/2316-11-0x0000000000000000-mapping.dmp

memory/1480-12-0x0000000000000000-mapping.dmp