Malware Analysis Report

2024-11-16 13:00

Sample ID 240519-xp84gsda7t
Target 16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd
SHA256 16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd
Tags
neconyd 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

16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd

Threat Level: Known bad

The file 16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd was found to be: Known bad.

Malicious Activity Summary

neconyd trojan

Neconyd

Neconyd family

Executes dropped EXE

Loads dropped DLL

Drops file in System32 directory

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-19 19:02

Signatures

Neconyd family

neconyd

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-19 19:02

Reported

2024-05-19 19:05

Platform

win7-20240508-en

Max time kernel

145s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1936 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1936 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1936 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1936 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2092 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2092 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2092 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2092 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2964 wrote to memory of 2368 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2964 wrote to memory of 2368 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2964 wrote to memory of 2368 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2964 wrote to memory of 2368 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe

Processes

C:\Users\Admin\AppData\Local\Temp\16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd.exe

"C:\Users\Admin\AppData\Local\Temp\16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd.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 35.91.124.102:80 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

memory/1936-1-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 ddbaeb99c7021758c48b682e11b598af
SHA1 533ca988026b16b6317e31cd2c5f763ee5d52259
SHA256 d53287ccca304154bca58948dfa803304359531f552ff15c02923e63a12acc74
SHA512 0a2e0194f6584471c3dca67cb7eb6b90564e375e623dc6d90e450dde43b8a96d747424c4706ddf079401aa66a3809e9f92c43cf72295a12568f07d8ca818a8c4

memory/2092-9-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2092-11-0x0000000000400000-0x000000000042B000-memory.dmp

\Windows\SysWOW64\omsecor.exe

MD5 85971e20f54074fd519712b62ba889c4
SHA1 f143d1e8d73dc3614348bef24bacd1d5f3312b8e
SHA256 502c94c742faed269d83fd0091ab1aaf81de3a99afcaafb4391a0861b88fbdaa
SHA512 08153da7d1d5a442355863a8e9cfffc22b4beb953b7f48d675b2269c34bd24cd72c224e298c1df73bb2488fdb4f63354f2c03364abd3333930a3262374a6f12c

memory/2092-16-0x0000000000530000-0x000000000055B000-memory.dmp

memory/2092-22-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 c9cb798465e20aba072d6dfb7387104f
SHA1 a0fab0477695fc2e9caa6302e33144f3aed1216e
SHA256 4c24877ef306b934e93af990132554947ca6548718bd32b84ee59a29d4baf6fa
SHA512 dd013b345750d492aa4d4b4233bb3dd55c52f923aadf70440784736fa87876bef72e219dc22a9dd8be77ced2d4dc6bb82709ead8ab714797e4c51bbae9aa7854

memory/2368-36-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2964-33-0x00000000001B0000-0x00000000001DB000-memory.dmp

memory/2964-32-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2368-37-0x0000000000400000-0x000000000042B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-19 19:02

Reported

2024-05-19 19:05

Platform

win10v2004-20240426-en

Max time kernel

145s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd.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 opened for modification C:\Windows\SysWOW64\merocz.xc6 C:\Windows\SysWOW64\omsecor.exe N/A
File created C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd.exe

"C:\Users\Admin\AppData\Local\Temp\16cd8fc0620e6eb5a8d341d0ce8b3bc8d7a6861e3eda2e4492bd6d5bc9645cdd.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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 88.221.83.211:443 www.bing.com tcp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 211.83.221.88.in-addr.arpa udp
BE 88.221.83.211:443 www.bing.com tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 56.126.166.20.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 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 ow5dirasuek.com udp
US 35.91.124.102:80 ow5dirasuek.com tcp
US 8.8.8.8:53 102.124.91.35.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 91.90.14.23.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
FI 193.166.255.171:80 lousta.net tcp
US 64.225.91.73:80 mkkuei4kdsz.com tcp

Files

memory/1688-0-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 ddbaeb99c7021758c48b682e11b598af
SHA1 533ca988026b16b6317e31cd2c5f763ee5d52259
SHA256 d53287ccca304154bca58948dfa803304359531f552ff15c02923e63a12acc74
SHA512 0a2e0194f6584471c3dca67cb7eb6b90564e375e623dc6d90e450dde43b8a96d747424c4706ddf079401aa66a3809e9f92c43cf72295a12568f07d8ca818a8c4

memory/1688-4-0x0000000000400000-0x000000000042B000-memory.dmp

memory/1528-6-0x0000000000400000-0x000000000042B000-memory.dmp

memory/1528-7-0x0000000000400000-0x000000000042B000-memory.dmp

C:\Windows\SysWOW64\omsecor.exe

MD5 a34345b5f45a6888424bddc3dd4762fb
SHA1 0b6ac8ee6a826e41cfc1b249bae76d7670a0b22f
SHA256 ea0142b84cb0fb339196b37be2c51b9c770391eca2e8a754abc33c3ab8037a1f
SHA512 5ed7f0fd1afb5e60b27b4233ab389bcac3115a28abfd776693d53b83d8c5babdc213db72bd2be3aef7685daed67997ed2a429205c66054634a7bd2ba167d52b0

memory/2344-13-0x0000000000400000-0x000000000042B000-memory.dmp

memory/1528-12-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2344-14-0x0000000000400000-0x000000000042B000-memory.dmp