Malware Analysis Report

2024-11-16 12:57

Sample ID 240815-s4sb3azbmb
Target bde33edeae54dd0ea30fc1fa11b304e0N.exe
SHA256 417efb095ccf209554bca6b2563a874c1a42f3bf2f11558ab0a4925552674461
Tags
neconyd discovery trojan upx
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

417efb095ccf209554bca6b2563a874c1a42f3bf2f11558ab0a4925552674461

Threat Level: Known bad

The file bde33edeae54dd0ea30fc1fa11b304e0N.exe was found to be: Known bad.

Malicious Activity Summary

neconyd discovery trojan upx

Neconyd family

Neconyd

Executes dropped EXE

Loads dropped DLL

UPX packed file

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

2024-08-15 15:41

Signatures

Neconyd family

neconyd

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-15 15:41

Reported

2024-08-15 15:43

Platform

win7-20240729-en

Max time kernel

115s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bde33edeae54dd0ea30fc1fa11b304e0N.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

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A 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\bde33edeae54dd0ea30fc1fa11b304e0N.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 2296 wrote to memory of 1628 N/A C:\Users\Admin\AppData\Local\Temp\bde33edeae54dd0ea30fc1fa11b304e0N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2296 wrote to memory of 1628 N/A C:\Users\Admin\AppData\Local\Temp\bde33edeae54dd0ea30fc1fa11b304e0N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2296 wrote to memory of 1628 N/A C:\Users\Admin\AppData\Local\Temp\bde33edeae54dd0ea30fc1fa11b304e0N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2296 wrote to memory of 1628 N/A C:\Users\Admin\AppData\Local\Temp\bde33edeae54dd0ea30fc1fa11b304e0N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1628 wrote to memory of 592 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 1628 wrote to memory of 592 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 1628 wrote to memory of 592 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 1628 wrote to memory of 592 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 592 wrote to memory of 3016 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 592 wrote to memory of 3016 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 592 wrote to memory of 3016 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 592 wrote to memory of 3016 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe

Processes

C:\Users\Admin\AppData\Local\Temp\bde33edeae54dd0ea30fc1fa11b304e0N.exe

"C:\Users\Admin\AppData\Local\Temp\bde33edeae54dd0ea30fc1fa11b304e0N.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/2296-0-0x0000000000400000-0x000000000043E000-memory.dmp

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

MD5 81b8f59fdb274e5089e23333337348c6
SHA1 75c6e9d430f35b4fef8e5a47e1afc674c327bbfd
SHA256 1e5754a1c677c5ecb9ee6d1f7e3ac9b76154ee84d1d58a4869c9a7cc3f242f43
SHA512 66c9313534d373d87dc4110b202548ef2a284f0c0e9bda82043a2f664a3c092a964df005c1d6f262b4e199772c461a60a79e0bce7cb7be99f829a678d5a146ec

memory/1628-10-0x0000000000400000-0x000000000043E000-memory.dmp

memory/2296-8-0x0000000000400000-0x000000000043E000-memory.dmp

memory/1628-12-0x0000000000400000-0x000000000043E000-memory.dmp

\Windows\SysWOW64\omsecor.exe

MD5 b8e151042aa5a6fcc3934fd8bb612305
SHA1 d908b12a9b0d4816c806d677a4c9183cafe14067
SHA256 dc14100f0254dac4c5d4ba2f90b4a827e6c7a267ecc6513b12f57d4dba4eb420
SHA512 a1e42558eac299da770a3e9c4a064efab27df13052c91aa5a43e94f04d046e98473f823fa374d78e38bf598cc5a4927c5bc1e429e08c861d2ab7e15477657346

memory/1628-17-0x0000000000480000-0x00000000004BE000-memory.dmp

memory/1628-24-0x0000000000480000-0x00000000004BE000-memory.dmp

memory/1628-23-0x0000000000400000-0x000000000043E000-memory.dmp

memory/592-30-0x00000000001B0000-0x00000000001EE000-memory.dmp

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

MD5 c1c764d4ed8c952ff72e723b2ede04c9
SHA1 0787951e4664f59179403006974bb8b317b6d2f9
SHA256 814faa51ca4052d39f5bd2b4bdc995936353690117d9cf336095d3ebf373d8df
SHA512 d57ac0e26fe1f36a4bc46ead463f544daea5e8d72aba4204754df630375f6cf43b66a6e2c9f7c04b9eff0c81eb787f0f601b31add2e351f40074db19f99349ca

memory/592-35-0x0000000000400000-0x000000000043E000-memory.dmp

memory/3016-38-0x0000000000400000-0x000000000043E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-15 15:41

Reported

2024-08-15 15:43

Platform

win10v2004-20240802-en

Max time kernel

114s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bde33edeae54dd0ea30fc1fa11b304e0N.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

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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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\bde33edeae54dd0ea30fc1fa11b304e0N.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\bde33edeae54dd0ea30fc1fa11b304e0N.exe

"C:\Users\Admin\AppData\Local\Temp\bde33edeae54dd0ea30fc1fa11b304e0N.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 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.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 15.164.165.52.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 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 73.91.225.64.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
FI 193.166.255.171:80 lousta.net tcp

Files

memory/832-0-0x0000000000400000-0x000000000043E000-memory.dmp

memory/2776-4-0x0000000000400000-0x000000000043E000-memory.dmp

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

MD5 81b8f59fdb274e5089e23333337348c6
SHA1 75c6e9d430f35b4fef8e5a47e1afc674c327bbfd
SHA256 1e5754a1c677c5ecb9ee6d1f7e3ac9b76154ee84d1d58a4869c9a7cc3f242f43
SHA512 66c9313534d373d87dc4110b202548ef2a284f0c0e9bda82043a2f664a3c092a964df005c1d6f262b4e199772c461a60a79e0bce7cb7be99f829a678d5a146ec

memory/832-6-0x0000000000400000-0x000000000043E000-memory.dmp

memory/2776-7-0x0000000000400000-0x000000000043E000-memory.dmp

C:\Windows\SysWOW64\omsecor.exe

MD5 e0318c8e137a525baf8da32814088cd0
SHA1 69ed1b15103bb87597f0e121deeb29c71ce3da03
SHA256 5c9e9f0c638b6922dccd3d96477d72c89e70e358adaa06044bac7ca692a58798
SHA512 e2f9131094fbf9089da9d2899c970936d36dbd978fa5ba0bc8e40722238d90e4416524c35a61d4dbba0f50e9f930bcfb917fb29bcd6026b4dcc565ee4a804f30

memory/2736-11-0x0000000000400000-0x000000000043E000-memory.dmp

memory/2776-13-0x0000000000400000-0x000000000043E000-memory.dmp

memory/2736-14-0x0000000000400000-0x000000000043E000-memory.dmp