Malware Analysis Report

2024-11-16 12:58

Sample ID 240817-g3d79s1epc
Target 792ac20189cfa08fcef2a69ee54ee090N.exe
SHA256 95ed46c6261be53fa163a4a11902e055dfa073c585bc9b983af7deeed6b7dbfa
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

95ed46c6261be53fa163a4a11902e055dfa073c585bc9b983af7deeed6b7dbfa

Threat Level: Known bad

The file 792ac20189cfa08fcef2a69ee54ee090N.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

2024-08-17 06:19

Signatures

Neconyd family

neconyd

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-17 06:19

Reported

2024-08-17 06:21

Platform

win7-20240704-en

Max time kernel

115s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\792ac20189cfa08fcef2a69ee54ee090N.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\Local\Temp\792ac20189cfa08fcef2a69ee54ee090N.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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\omsecor.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 756 wrote to memory of 2088 N/A C:\Users\Admin\AppData\Local\Temp\792ac20189cfa08fcef2a69ee54ee090N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 756 wrote to memory of 2088 N/A C:\Users\Admin\AppData\Local\Temp\792ac20189cfa08fcef2a69ee54ee090N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 756 wrote to memory of 2088 N/A C:\Users\Admin\AppData\Local\Temp\792ac20189cfa08fcef2a69ee54ee090N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 756 wrote to memory of 2088 N/A C:\Users\Admin\AppData\Local\Temp\792ac20189cfa08fcef2a69ee54ee090N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2088 wrote to memory of 1472 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2088 wrote to memory of 1472 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2088 wrote to memory of 1472 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2088 wrote to memory of 1472 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 1472 wrote to memory of 2024 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1472 wrote to memory of 2024 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1472 wrote to memory of 2024 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1472 wrote to memory of 2024 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe

Processes

C:\Users\Admin\AppData\Local\Temp\792ac20189cfa08fcef2a69ee54ee090N.exe

"C:\Users\Admin\AppData\Local\Temp\792ac20189cfa08fcef2a69ee54ee090N.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

Files

memory/756-0-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 422e75db0a24928bdea354b16eee188a
SHA1 6be18e6bf50f60a637db1a2408ee3b7ad5570aae
SHA256 bf53e58ec956b05b5447aeb486de3374e899a1fc0dfe8b7ef55a25185366785c
SHA512 b9153ce5d4d22ccd4c1f5bae49dacd09d0827698b0b0ffbdb77ccfd7c9a569807ac40e28093dc4f187795c74ecb50b4afb5e785dbec1f9785712d5f1a50fe5e2

memory/756-8-0x0000000000220000-0x000000000024B000-memory.dmp

memory/2088-12-0x0000000000400000-0x000000000042B000-memory.dmp

memory/756-10-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2088-13-0x0000000000400000-0x000000000042B000-memory.dmp

\Windows\SysWOW64\omsecor.exe

MD5 8191375d30dc394ddcf35f3781f22c17
SHA1 685bb58384ded5d01f8d24d13e822ab020df27b9
SHA256 3db8dcc047e5208fb08113cd3aa19c2a2c3c51e8357a22e0d1c3eea712522739
SHA512 8c3745bad951805a32f630f82863253d31c664d2ea592b83d806ff58ff5917e0f6b5f6bf1c7e54793adf414c8290e2d0aec8387173c038efaef6a4b14305dcfd

memory/2088-19-0x0000000001FA0000-0x0000000001FCB000-memory.dmp

memory/1472-26-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2088-24-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 ae483023174c986accb4c48a5be92b90
SHA1 43da02af11bd7e69835ac58985de5ec5768e4db7
SHA256 d54c33f32fcd9caebe6d9fbe221af7ee48b6acf0fd9d63ed625b6f163d33e836
SHA512 8ac91600bb6832fbbacdd3fdc6a21bbf219eb7e0c2fdd792f76699085313b2fda5567930d7aef6f543ded5366fa7221b6c99e4d031ebb9cd4da2e7726bd7d7e5

memory/1472-31-0x0000000000220000-0x000000000024B000-memory.dmp

memory/1472-36-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2024-39-0x0000000000400000-0x000000000042B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-17 06:19

Reported

2024-08-17 06:21

Platform

win10v2004-20240802-en

Max time kernel

115s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\792ac20189cfa08fcef2a69ee54ee090N.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\792ac20189cfa08fcef2a69ee54ee090N.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\792ac20189cfa08fcef2a69ee54ee090N.exe

"C:\Users\Admin\AppData\Local\Temp\792ac20189cfa08fcef2a69ee54ee090N.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
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 138.201.86.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.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 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 30.243.111.52.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

Files

memory/3420-0-0x0000000000400000-0x000000000042B000-memory.dmp

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

MD5 422e75db0a24928bdea354b16eee188a
SHA1 6be18e6bf50f60a637db1a2408ee3b7ad5570aae
SHA256 bf53e58ec956b05b5447aeb486de3374e899a1fc0dfe8b7ef55a25185366785c
SHA512 b9153ce5d4d22ccd4c1f5bae49dacd09d0827698b0b0ffbdb77ccfd7c9a569807ac40e28093dc4f187795c74ecb50b4afb5e785dbec1f9785712d5f1a50fe5e2

memory/2956-4-0x0000000000400000-0x000000000042B000-memory.dmp

memory/3420-5-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2956-7-0x0000000000400000-0x000000000042B000-memory.dmp

memory/4056-11-0x0000000000400000-0x000000000042B000-memory.dmp

C:\Windows\SysWOW64\omsecor.exe

MD5 771a5498fc8a971878c797c03a6e5795
SHA1 bbf3468edba53227cf87162019461c57c9430149
SHA256 9d35d222b3f2d839d97cad6537c36a00ceeb6500ef5f6f0d0ccc2ef30f6add8c
SHA512 e13f0a8e32ee544aaee0b3b1b77902376768ab1f33e710523ef633bdf5e2fe5087c49beb3f8f8db873e44806ba8a474a1d3d0ef01bd9687ac1606690ba4bc947

memory/2956-12-0x0000000000400000-0x000000000042B000-memory.dmp

memory/4056-14-0x0000000000400000-0x000000000042B000-memory.dmp