Malware Analysis Report

2025-08-10 18:30

Sample ID 231105-eg85eaae71
Target NEAS.125c022525105cdd1d8b79a60ae37260_JC.exe
SHA256 7be118f59d7f5f325bc62b79bbb0df17b2f90d89e2cc32835d89d5f5cff0f2da
Tags
tofsee
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

7be118f59d7f5f325bc62b79bbb0df17b2f90d89e2cc32835d89d5f5cff0f2da

Threat Level: Known bad

The file NEAS.125c022525105cdd1d8b79a60ae37260_JC.exe was found to be: Known bad.

Malicious Activity Summary

tofsee

Tofsee family

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-11-05 03:55

Signatures

Tofsee family

tofsee

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-05 03:55

Reported

2023-11-05 03:58

Platform

win7-20231020-en

Max time kernel

118s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.125c022525105cdd1d8b79a60ae37260_JC.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.125c022525105cdd1d8b79a60ae37260_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.125c022525105cdd1d8b79a60ae37260_JC.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1200 -s 36

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-05 03:55

Reported

2023-11-05 03:58

Platform

win10v2004-20231023-en

Max time kernel

133s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.125c022525105cdd1d8b79a60ae37260_JC.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.125c022525105cdd1d8b79a60ae37260_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.125c022525105cdd1d8b79a60ae37260_JC.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3740 -ip 3740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 216

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3740 -ip 3740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 220

Network

Country Destination Domain Proto
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 121.252.72.23.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 39.142.81.104.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 1.202.248.87.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.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 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 123.10.44.20.in-addr.arpa udp

Files

N/A