Malware Analysis Report

2024-11-16 12:57

Sample ID 240816-v8yezsxflc
Target 1a8992f216739e2f5263c286915bd600N.exe
SHA256 49e4535875b86a01785c1a5ce181c4404075685c78543476dfb84f2aa761cd6f
Tags
upx 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

49e4535875b86a01785c1a5ce181c4404075685c78543476dfb84f2aa761cd6f

Threat Level: Known bad

The file 1a8992f216739e2f5263c286915bd600N.exe was found to be: Known bad.

Malicious Activity Summary

upx neconyd discovery trojan

Neconyd

Neconyd family

UPX packed file

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

2024-08-16 17:40

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

2024-08-16 17:40

Reported

2024-08-16 17:42

Platform

win7-20240704-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1a8992f216739e2f5263c286915bd600N.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

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\1a8992f216739e2f5263c286915bd600N.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2632 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\1a8992f216739e2f5263c286915bd600N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2632 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\1a8992f216739e2f5263c286915bd600N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2632 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\1a8992f216739e2f5263c286915bd600N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2632 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\1a8992f216739e2f5263c286915bd600N.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2720 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2720 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2720 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2720 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 1108 wrote to memory of 1412 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1108 wrote to memory of 1412 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1108 wrote to memory of 1412 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1108 wrote to memory of 1412 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1a8992f216739e2f5263c286915bd600N.exe

"C:\Users\Admin\AppData\Local\Temp\1a8992f216739e2f5263c286915bd600N.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/2632-0-0x0000000000400000-0x000000000043E000-memory.dmp

memory/2632-8-0x0000000000220000-0x000000000025E000-memory.dmp

memory/2632-9-0x0000000000220000-0x000000000025E000-memory.dmp

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

MD5 d502abaf3d45ad5c85f70fc05bc4f0fb
SHA1 1a8f39451d414ce2e9bdce3694ce579b582e5d1d
SHA256 3a31a14da8bf7c01c0bf791e7e2466996873146d0cdcc12610fceb1c3dc3668d
SHA512 43e72be3e5c673cd68b1eea39c3f45cd071c1e046b753785a2c69b76f15c978910eae8b472cf836a9ae8bd795032d92efd8c8c085660dd9b5cb92ea545c49ba7

memory/2720-13-0x0000000000400000-0x000000000043E000-memory.dmp

memory/2632-11-0x0000000000400000-0x000000000043E000-memory.dmp

memory/2720-14-0x0000000000400000-0x000000000043E000-memory.dmp

\Windows\SysWOW64\omsecor.exe

MD5 8333062e9ff0b994b99bb8cc959022bf
SHA1 ad61638f651fdd860959b2e5aef45b06726edf0f
SHA256 375e76e3aa794da01de449426aea010b2ebc13548a7f6ac49e2f98918b155acc
SHA512 5876ef6d67ca3fa6f69c8e226560a1ee442c152e249a9772eb907e8f8aa4479c419e918d20145b8319dba2840c44296548768c07a10f03f857a6ee85743a7e3a

memory/2720-25-0x0000000001F70000-0x0000000001FAE000-memory.dmp

memory/1108-30-0x0000000000400000-0x000000000043E000-memory.dmp

memory/2720-27-0x0000000000400000-0x000000000043E000-memory.dmp

memory/2720-24-0x0000000001F70000-0x0000000001FAE000-memory.dmp

memory/1108-33-0x0000000000440000-0x000000000047E000-memory.dmp

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

MD5 e3d74646ac6397d1b0764fcacdf891f8
SHA1 804ea3597c3dd0f14404b881b286554995b3354f
SHA256 c5c60e7cede2763441dd56eb54dd21d7d6b2dad2103ab0aee2a0c173b801fffd
SHA512 dd657472a3e80e4d1e7d80b24bc786a92f2036c9a3e6b72c17fccc16eb97dae2c2dc4e1e2e6bdb0612f80211df56851d3b9aea6c505d57f998418c824ac3d0af

memory/1412-39-0x0000000000400000-0x000000000043E000-memory.dmp

memory/1412-41-0x0000000000400000-0x000000000043E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-16 17:40

Reported

2024-08-16 17:42

Platform

win10v2004-20240802-en

Max time kernel

114s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1a8992f216739e2f5263c286915bd600N.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
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
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\1a8992f216739e2f5263c286915bd600N.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\1a8992f216739e2f5263c286915bd600N.exe

"C:\Users\Admin\AppData\Local\Temp\1a8992f216739e2f5263c286915bd600N.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 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
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 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 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 13.227.111.52.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/4088-0-0x0000000000400000-0x000000000043E000-memory.dmp

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

MD5 d502abaf3d45ad5c85f70fc05bc4f0fb
SHA1 1a8f39451d414ce2e9bdce3694ce579b582e5d1d
SHA256 3a31a14da8bf7c01c0bf791e7e2466996873146d0cdcc12610fceb1c3dc3668d
SHA512 43e72be3e5c673cd68b1eea39c3f45cd071c1e046b753785a2c69b76f15c978910eae8b472cf836a9ae8bd795032d92efd8c8c085660dd9b5cb92ea545c49ba7

memory/4088-6-0x0000000000400000-0x000000000043E000-memory.dmp

memory/1524-4-0x0000000000400000-0x000000000043E000-memory.dmp

memory/1524-7-0x0000000000400000-0x000000000043E000-memory.dmp

C:\Windows\SysWOW64\omsecor.exe

MD5 44df7e68a5f07a6ec2c1f67fd15713c5
SHA1 67b5e0f7f54b8669d44f5659669c8c7d339960d5
SHA256 3377f647f36d1bec46466baf9ad038bb1caf415f57edf14d6617d9ee48726ebe
SHA512 313cc0222657b30dbec356fd6b14faee23b3b95cd0444cbc60e2d50db41499ec2ce14ccc1befdf0b755aba423f3db24e40572c7c46776537c1216d1a4c7c3926

memory/3544-12-0x0000000000400000-0x000000000043E000-memory.dmp

memory/1524-13-0x0000000000400000-0x000000000043E000-memory.dmp

memory/3544-14-0x0000000000400000-0x000000000043E000-memory.dmp