Malware Analysis Report

2024-11-16 12:58

Sample ID 240818-pca2xswdpq
Target b2efebdd3fa287b4b4af62798c8871d0N.exe
SHA256 39909848cec82953263eca035063ea42b2aa73bd49cc8d0117f1281817d712a0
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

39909848cec82953263eca035063ea42b2aa73bd49cc8d0117f1281817d712a0

Threat Level: Known bad

The file b2efebdd3fa287b4b4af62798c8871d0N.exe was found to be: Known bad.

Malicious Activity Summary

neconyd discovery trojan

Neconyd family

Neconyd

Executes dropped EXE

Loads dropped DLL

Drops file in System32 directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-18 12:10

Signatures

Neconyd family

neconyd

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-18 12:10

Reported

2024-08-18 12:13

Platform

win7-20240708-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe"

Signatures

Neconyd

trojan neconyd

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\omsecor.exe N/A
N/A N/A C:\Windows\SysWOW64\omsecor.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\omsecor.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\omsecor.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\omsecor.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\omsecor.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2956 wrote to memory of 3024 N/A C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2956 wrote to memory of 3024 N/A C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2956 wrote to memory of 3024 N/A C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2956 wrote to memory of 3024 N/A C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 3024 wrote to memory of 1548 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 3024 wrote to memory of 1548 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 3024 wrote to memory of 1548 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 3024 wrote to memory of 1548 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 1548 wrote to memory of 1076 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1548 wrote to memory of 1076 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1548 wrote to memory of 1076 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1548 wrote to memory of 1076 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe

"C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe"

C:\Users\Admin\AppData\Roaming\omsecor.exe

C:\Users\Admin\AppData\Roaming\omsecor.exe

C:\Windows\SysWOW64\omsecor.exe

C:\Windows\System32\omsecor.exe

C:\Users\Admin\AppData\Roaming\omsecor.exe

C:\Users\Admin\AppData\Roaming\omsecor.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 lousta.net udp
FI 193.166.255.171:80 lousta.net tcp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 mkkuei4kdsz.com udp
US 64.225.91.73:80 mkkuei4kdsz.com tcp
US 8.8.8.8:53 ow5dirasuek.com udp
US 52.34.198.229:80 ow5dirasuek.com tcp
FI 193.166.255.171:80 lousta.net tcp
FI 193.166.255.171:80 lousta.net tcp
US 64.225.91.73:80 mkkuei4kdsz.com tcp

Files

C:\Users\Admin\AppData\Roaming\omsecor.exe

MD5 73cf383a4b12cce57cb925cf0aeb13d9
SHA1 9a65ea5d1dbe859bfa5bc7bb6fc40be048453abf
SHA256 a02226331110406f482f591ba82177cf3e6fae33dcaf0b118d122fbab8a57b33
SHA512 5cdab2006a7d55f3b35e8dff431be8a37b5469f12c095a78e573d87944f42af674ad60435c4f0a53913e7634eee3bb835866d901cf6c74c11cf5431e49447c52

\Windows\SysWOW64\omsecor.exe

MD5 2bd71f2d530e51a7f5dc229bdf3cfbac
SHA1 d55c0e311dce9fa27c2a95bff4ed571a8f63fccc
SHA256 73f7b9d624ec7ac3292ff9a18ccf59c6a27ba2c803b57180eff0ec81989c4461
SHA512 bc2fc956a0c0c2db14ec6d91a19d1451bee13b97cee485cbd53a51f887ccbe709d82ef7dbc3b880bdd7048ed748d3de2b79782a5131c59325e9ba6182dd81446

\Users\Admin\AppData\Roaming\omsecor.exe

MD5 20d9206acb8bdb73c5d438d82ea95d79
SHA1 e22a0f2096419760d1419db15f0288010e3b6783
SHA256 e30d36f0fb5b88096847bbf8b49db861b76555e9151f793b21596bf29f977414
SHA512 1f628c24b561832763a87fe52b7cce11dc753a1f4c1f37fe5184be1762859d64d2fab041ff700ebfc88ed509b03694c0cef038bada630676dd1b98c3d2f2a905

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-18 12:10

Reported

2024-08-18 12:13

Platform

win10v2004-20240802-en

Max time kernel

146s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe"

Signatures

Neconyd

trojan neconyd

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\omsecor.exe N/A
N/A N/A C:\Windows\SysWOW64\omsecor.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe N/A
File opened for modification C:\Windows\SysWOW64\merocz.xc6 C:\Windows\SysWOW64\omsecor.exe N/A

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\b2efebdd3fa287b4b4af62798c8871d0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\omsecor.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\omsecor.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe

"C:\Users\Admin\AppData\Local\Temp\b2efebdd3fa287b4b4af62798c8871d0N.exe"

C:\Users\Admin\AppData\Roaming\omsecor.exe

C:\Users\Admin\AppData\Roaming\omsecor.exe

C:\Windows\SysWOW64\omsecor.exe

C:\Windows\System32\omsecor.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 lousta.net udp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 mkkuei4kdsz.com udp
US 64.225.91.73:80 mkkuei4kdsz.com tcp
US 8.8.8.8:53 73.91.225.64.in-addr.arpa udp
US 8.8.8.8:53 ow5dirasuek.com udp
US 52.34.198.229:80 ow5dirasuek.com tcp
US 8.8.8.8:53 229.198.34.52.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 14.227.111.52.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
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 64.225.91.73:80 mkkuei4kdsz.com tcp

Files

C:\Users\Admin\AppData\Roaming\omsecor.exe

MD5 73cf383a4b12cce57cb925cf0aeb13d9
SHA1 9a65ea5d1dbe859bfa5bc7bb6fc40be048453abf
SHA256 a02226331110406f482f591ba82177cf3e6fae33dcaf0b118d122fbab8a57b33
SHA512 5cdab2006a7d55f3b35e8dff431be8a37b5469f12c095a78e573d87944f42af674ad60435c4f0a53913e7634eee3bb835866d901cf6c74c11cf5431e49447c52

C:\Windows\SysWOW64\omsecor.exe

MD5 2dc0cac89f448271895ccadeaccd3ea5
SHA1 0987e89e26282a0a114a2dd692731cd2301c3eb9
SHA256 bd9a3f5790545ee4945f5eb53ab22b023720b669660f0fe07ded7dc7108827a2
SHA512 0b7e2570aa77213fa9f0616c749821af6200badba103e6bd9b0a3904f4c5e507dcafa74f41d4eb5d183b2c2ecc0c4bfd06d09a74830d2f0c3577979be5e0b658