Malware Analysis Report

2024-11-16 12:58

Sample ID 240818-k4zr5swfne
Target 759b81d87e3790c1e1a5eb0e8ca191c0N.exe
SHA256 d53e63679f7902887c20b9587c6ac16fbce6f22b4b3d918027644217908fdabe
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

d53e63679f7902887c20b9587c6ac16fbce6f22b4b3d918027644217908fdabe

Threat Level: Known bad

The file 759b81d87e3790c1e1a5eb0e8ca191c0N.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 09:09

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 09:09

Reported

2024-08-18 09:12

Platform

win7-20240704-en

Max time kernel

114s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\759b81d87e3790c1e1a5eb0e8ca191c0N.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\759b81d87e3790c1e1a5eb0e8ca191c0N.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\759b81d87e3790c1e1a5eb0e8ca191c0N.exe

"C:\Users\Admin\AppData\Local\Temp\759b81d87e3790c1e1a5eb0e8ca191c0N.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
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

Files

memory/2468-0-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2468-11-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 b2eff1323a1ffb0533429e2da8a9642d
SHA1 9aa55585d58ce023f3e47922f82f8febd775de29
SHA256 b964fcd6f67c044c652090cf821b8f1fd1cc7956d38f5feccaf62e773d61b68d
SHA512 d5ede1b0aaef977c79e16ec5e7401a241e53471d7ce8d4efb0c6453560e7dadbb766da36d4d546b7657b282804374da9052c869756e94dd01e1f765b6a5b50b7

memory/2468-9-0x00000000001B0000-0x00000000001DB000-memory.dmp

memory/2468-4-0x00000000001B0000-0x00000000001DB000-memory.dmp

memory/2872-13-0x0000000000400000-0x000000000042B000-memory.dmp

\Windows\SysWOW64\omsecor.exe

MD5 78daca9d26d576398a39d113ec1b58a2
SHA1 4c77d30b7037eb3da513f96c549e9c8aff5d7705
SHA256 cbbff1931e290c5d1f1b731de2a396a7a5c842279d6c59a13fe2f203e1413999
SHA512 8fa3c27137ae57e70b203618c303329d0b71edbfce3263dc9844bd29e79c1b0e691d484fe5b4c5a2ff527f055020a407db9e1b9fc7e73d91e8a263a4f1e180ec

memory/2872-19-0x00000000002A0000-0x00000000002CB000-memory.dmp

memory/2872-25-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2872-24-0x00000000002A0000-0x00000000002CB000-memory.dmp

memory/2972-28-0x0000000000400000-0x000000000042B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-18 09:09

Reported

2024-08-18 09:12

Platform

win10v2004-20240802-en

Max time kernel

115s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\759b81d87e3790c1e1a5eb0e8ca191c0N.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:\Users\Admin\AppData\Local\Temp\759b81d87e3790c1e1a5eb0e8ca191c0N.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\759b81d87e3790c1e1a5eb0e8ca191c0N.exe

"C:\Users\Admin\AppData\Local\Temp\759b81d87e3790c1e1a5eb0e8ca191c0N.exe"

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4448,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4412 /prefetch:8

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
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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 45.19.74.20.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 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

Files

memory/3924-0-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 b2eff1323a1ffb0533429e2da8a9642d
SHA1 9aa55585d58ce023f3e47922f82f8febd775de29
SHA256 b964fcd6f67c044c652090cf821b8f1fd1cc7956d38f5feccaf62e773d61b68d
SHA512 d5ede1b0aaef977c79e16ec5e7401a241e53471d7ce8d4efb0c6453560e7dadbb766da36d4d546b7657b282804374da9052c869756e94dd01e1f765b6a5b50b7

memory/3924-6-0x0000000000400000-0x000000000042B000-memory.dmp

memory/4720-5-0x0000000000400000-0x000000000042B000-memory.dmp

memory/4720-7-0x0000000000400000-0x000000000042B000-memory.dmp

C:\Windows\SysWOW64\omsecor.exe

MD5 31c6957d8312e2057c6e0a72c9a47c78
SHA1 6d9f529475d2a434f9419c913dd205e4d04cddfd
SHA256 109bfd75427bb5720960d0ea204186b0eb93440da83ca1985cf24ef63322fa2f
SHA512 e14be9f6355beb4dbcb9f4fa14fa3ed01eb86bcddef115fc7999e1bfc50ce5641313f36b7813ff45888149b2aaa80538461d54481fd8e4c9ac98597f46e4cb76

memory/448-11-0x0000000000400000-0x000000000042B000-memory.dmp

memory/4720-12-0x0000000000400000-0x000000000042B000-memory.dmp

memory/448-17-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 cb326e1b4a9fa3d997349b174f99131c
SHA1 86b522fbeff8c3f761e2370a95d40c7af22903aa
SHA256 4f11dc9bbee10a12cf044922b2062045cf78ddc4a50a9eec8d528474ff227b24
SHA512 2fe9df11f516069b7e49090489d2b4919cb9963d0b1b6bd0132532131cbabe9199ba236746640a168781d2a7f19bee3198e3f43d175b91bb505698def5027b88

memory/4524-18-0x0000000000400000-0x000000000042B000-memory.dmp

memory/4524-20-0x0000000000400000-0x000000000042B000-memory.dmp