Malware Analysis Report

2024-11-16 13:01

Sample ID 240521-dkdl8sff35
Target b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f
SHA256 b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f
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

b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f

Threat Level: Known bad

The file b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f 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

2024-05-21 03:03

Signatures

Neconyd family

neconyd

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-21 03:03

Reported

2024-05-21 03:06

Platform

win7-20240508-en

Max time kernel

146s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f.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 2480 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2480 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2480 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2480 wrote to memory of 2408 N/A C:\Users\Admin\AppData\Local\Temp\b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2408 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2408 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2408 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2408 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2476 wrote to memory of 1280 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2476 wrote to memory of 1280 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2476 wrote to memory of 1280 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2476 wrote to memory of 1280 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f.exe

"C:\Users\Admin\AppData\Local\Temp\b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f.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/2480-0-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2480-4-0x00000000003C0000-0x00000000003EB000-memory.dmp

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

MD5 b9465624ae0a63a026a0aab268509886
SHA1 e1cfd987f99ac2e7bc8a75b0ff764c905c27e37b
SHA256 0a01ba73f0ffe5f3227fc892e06c32e544a49a4c8f3023c58960b08bac81e8f3
SHA512 2ad9ea527d412cc807fd9e1d8d392ddd9be40b7d82f8ed18bdf79b422294782749b8019a144e4e51d274d372bfb51aa9bd394566864ca3e2bec96571fdf6c5aa

memory/2480-10-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2480-9-0x00000000003C0000-0x00000000003EB000-memory.dmp

memory/2408-13-0x0000000000400000-0x000000000042B000-memory.dmp

\Windows\SysWOW64\omsecor.exe

MD5 7401363e64e082e45de6ddb0889414e3
SHA1 27ca6504df84791984342c0a8d583cbbf29abe42
SHA256 8c5a429e7a4fc3d566489b5f3dc2e294c03c17d37a9d154bcbca89c4fd0d3053
SHA512 7a4eaa005b720b1ce24e8c64918567c1432428a6144abb6138d13d9ca7f9abb1123f5e76a459d339ec307e00990efa90e3405e5d8f93f18a184915b70e33d54c

memory/2408-18-0x0000000001F70000-0x0000000001F9B000-memory.dmp

memory/2408-24-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 a007d7217cb8fc5b1cd4292f8ac22364
SHA1 dc36315b3e8556dbb9036d7877defad69f630c35
SHA256 53a826eb2316fbb7dd4126765a7a20487abc32268c29c1afea1b436f26b933f7
SHA512 ec42ccba18c8479c18452a227074959281a5eb824424fc76f1a59bbb4ff3e268717f3cf0c7984dfee626651448762fc832f2035f487a712fdbde9b512fa3a5f7

memory/2476-35-0x0000000000220000-0x000000000024B000-memory.dmp

memory/2476-34-0x0000000000400000-0x000000000042B000-memory.dmp

memory/1280-37-0x0000000000400000-0x000000000042B000-memory.dmp

memory/1280-39-0x0000000000400000-0x000000000042B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-21 03:03

Reported

2024-05-21 03:06

Platform

win10v2004-20240426-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f.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

Processes

C:\Users\Admin\AppData\Local\Temp\b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f.exe

"C:\Users\Admin\AppData\Local\Temp\b39d20b0656503012b314e26ffacf5305edff12903c375fcebb14ed80aab478f.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
US 8.8.8.8:53 8.8.8.8.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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.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 8.8.8.8:53 171.39.242.20.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 79.190.18.2.in-addr.arpa udp
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 11.227.111.52.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
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 64.225.91.73:80 mkkuei4kdsz.com tcp
US 8.8.8.8:53 udp

Files

memory/4476-0-0x0000000000400000-0x000000000042B000-memory.dmp

memory/4476-4-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 b9465624ae0a63a026a0aab268509886
SHA1 e1cfd987f99ac2e7bc8a75b0ff764c905c27e37b
SHA256 0a01ba73f0ffe5f3227fc892e06c32e544a49a4c8f3023c58960b08bac81e8f3
SHA512 2ad9ea527d412cc807fd9e1d8d392ddd9be40b7d82f8ed18bdf79b422294782749b8019a144e4e51d274d372bfb51aa9bd394566864ca3e2bec96571fdf6c5aa

memory/1816-5-0x0000000000400000-0x000000000042B000-memory.dmp

memory/1816-7-0x0000000000400000-0x000000000042B000-memory.dmp

C:\Windows\SysWOW64\omsecor.exe

MD5 ebbe02756d2d4296c2801f9a922b8eb6
SHA1 4879d14d095f183c978457c1da788ea0ca9f495c
SHA256 87f8078f6b61107a153f2ddabc15b05bfb7235698d62d1caa6201e585cf05ddc
SHA512 fb2801ed809463aef48914f50450bd0d46b2cf0dd8c3dd0b46c15717f08ad37539215626778073294b75cdbc93741fb6c3d49be97e4fd2126fef3288160a13d4

memory/1816-13-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2952-11-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 ca2dfc7ff8d2db0675face60d7b5feda
SHA1 3d5abb98b4ddb8562cc6e8b7abba131a62a83909
SHA256 543f734638fa6b483e4050f0c72b2a37991501e9fb9a6b6d13826a7dd22492f5
SHA512 810faca2c8462f3f1102f63b5ff6f7d103e3aa294a2c7857bdaebd4802e29bd6c69c386b46de2ab0dd47b618010510548cbf31b9188a9d558720e29c3db9501e

memory/2952-17-0x0000000000400000-0x000000000042B000-memory.dmp

memory/1164-19-0x0000000000400000-0x000000000042B000-memory.dmp

memory/1164-20-0x0000000000400000-0x000000000042B000-memory.dmp