Malware Analysis Report

2024-11-16 12:58

Sample ID 240819-kcp4maxbjq
Target 81b3427626d45890e6a48f0d0dca7f00N.exe
SHA256 a6218f35db24a51e02e0e8e431002ff8f4a89466ec66624dd0f9876db63730fe
Tags
neconyd discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

a6218f35db24a51e02e0e8e431002ff8f4a89466ec66624dd0f9876db63730fe

Threat Level: Known bad

The file 81b3427626d45890e6a48f0d0dca7f00N.exe was found to be: Known bad.

Malicious Activity Summary

neconyd discovery trojan

Neconyd

Neconyd family

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-19 08:27

Signatures

Neconyd family

neconyd

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-19 08:27

Reported

2024-08-19 08:29

Platform

win7-20240704-en

Max time kernel

26s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81b3427626d45890e6a48f0d0dca7f00N.exe"

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\81b3427626d45890e6a48f0d0dca7f00N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\81b3427626d45890e6a48f0d0dca7f00N.exe

"C:\Users\Admin\AppData\Local\Temp\81b3427626d45890e6a48f0d0dca7f00N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 36

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-19 08:27

Reported

2024-08-19 08:29

Platform

win10v2004-20240802-en

Max time kernel

102s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81b3427626d45890e6a48f0d0dca7f00N.exe"

Signatures

Neconyd

trojan neconyd

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\81b3427626d45890e6a48f0d0dca7f00N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\81b3427626d45890e6a48f0d0dca7f00N.exe

"C:\Users\Admin\AppData\Local\Temp\81b3427626d45890e6a48f0d0dca7f00N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2380 -ip 2380

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 224

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/2380-1-0x0000000000400000-0x0000000000437000-memory.dmp