Malware Analysis Report

2025-01-18 18:17

Sample ID 201108-q6qhnl6f9j
Target 57430d1f5d3b5d233e75ade174a56dc50812f9137af575bcf882c3ce3b39b5a5
SHA256 57430d1f5d3b5d233e75ade174a56dc50812f9137af575bcf882c3ce3b39b5a5
Tags
yunsip banker trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

57430d1f5d3b5d233e75ade174a56dc50812f9137af575bcf882c3ce3b39b5a5

Threat Level: Known bad

The file 57430d1f5d3b5d233e75ade174a56dc50812f9137af575bcf882c3ce3b39b5a5 was found to be: Known bad.

Malicious Activity Summary

yunsip banker trojan

Yunsip

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2020-11-08 18:01

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2020-11-08 18:01

Reported

2020-11-09 02:02

Platform

win7v20201028

Max time network

54s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2020-11-08 18:01

Reported

2020-11-09 02:02

Platform

win10v20201028

Max time kernel

11s

Max time network

112s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\57430d1f5d3b5d233e75ade174a56dc50812f9137af575bcf882c3ce3b39b5a5.dll,#1

Signatures

Yunsip

trojan banker yunsip

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 744 wrote to memory of 3628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 744 wrote to memory of 3628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 744 wrote to memory of 3628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\57430d1f5d3b5d233e75ade174a56dc50812f9137af575bcf882c3ce3b39b5a5.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\57430d1f5d3b5d233e75ade174a56dc50812f9137af575bcf882c3ce3b39b5a5.dll,#1

Network

Country Destination Domain Proto
N/A 52.109.12.18:443 tcp

Files

memory/3628-0-0x0000000000000000-mapping.dmp