Malware Analysis Report

2024-09-11 08:30

Sample ID 240620-f667sawbrn
Target f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d
SHA256 f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d
Tags
neconyd trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d

Threat Level: Known bad

The file f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d was found to be: Known bad.

Malicious Activity Summary

neconyd trojan

Neconyd family

Neconyd

Executes dropped EXE

Loads dropped DLL

Drops file in System32 directory

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-20 05:30

Signatures

Neconyd family

neconyd

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-20 05:30

Reported

2024-06-20 05:32

Platform

win7-20240508-en

Max time kernel

146s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\omsecor.exe N/A
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:\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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2188 wrote to memory of 2952 N/A C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2188 wrote to memory of 2952 N/A C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2188 wrote to memory of 2952 N/A C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2188 wrote to memory of 2952 N/A C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 2952 wrote to memory of 1540 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2952 wrote to memory of 1540 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2952 wrote to memory of 1540 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 2952 wrote to memory of 1540 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 1540 wrote to memory of 2576 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1540 wrote to memory of 2576 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1540 wrote to memory of 2576 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 1540 wrote to memory of 2576 N/A C:\Windows\SysWOW64\omsecor.exe C:\Users\Admin\AppData\Roaming\omsecor.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe

"C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.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
US 8.8.8.8:53 lousta.net udp
US 8.8.8.8:53 mkkuei4kdsz.com udp
US 8.8.8.8:53 ow5dirasuek.com udp
US 8.8.8.8:53 lousta.net udp
US 8.8.8.8:53 lousta.net udp
US 8.8.8.8:53 mkkuei4kdsz.com udp

Files

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

MD5 a3ce96683aa2bed5ea8a53efa8525ec1
SHA1 1a9b48e5c3c33f0bb51e94067142de679bb39638
SHA256 40489cde87d07ff995871f247e3a338d07f4d10375018c022eb489a54fef9e56
SHA512 ec597ff6d6dbaf2db7d2999459a5daeca53a3668441ff0e2622846b0310c13ab755776512eabd7e429d1c22a1f064c93f11bd707993d64070832c92b64521aae

\Windows\SysWOW64\omsecor.exe

MD5 de880990f0c9c5cd6bcfba23d9ea0ee7
SHA1 c278613ee5afeda36c1142f786473aff06980d51
SHA256 016369dad5a1e89683b8243678622cc8b4d3669edf0d71e015c1739cdb40d7c9
SHA512 efc6744693a423ba0cff54b950a3bd8de1ef2ea95978743d04e2bd39930d1cd2930979755a1684f55926da65412a0d8265aab4b5c998f2f857279438af06cba8

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

MD5 5c5e385e1c19583a9ba84d5d654d2c6e
SHA1 03916f08126fb293a58bf72b03a3851406aaa0b1
SHA256 d84bd68d9ecedbe280bf64c7890e96e9111573eccf9c71f818385512766de38e
SHA512 fe1d8d0dbdd8fac206d5885bda2dc92a3e9892b60f831f3a4e48a57b94a72fde17137e624f763e30cbc1d9a0086da577da1b0eee5413faa07abab7339831d6e4

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-20 05:30

Reported

2024-06-20 05:32

Platform

win10v2004-20240508-en

Max time kernel

145s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4592 wrote to memory of 5052 N/A C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 4592 wrote to memory of 5052 N/A C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 4592 wrote to memory of 5052 N/A C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe C:\Users\Admin\AppData\Roaming\omsecor.exe
PID 5052 wrote to memory of 4580 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 5052 wrote to memory of 4580 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe
PID 5052 wrote to memory of 4580 N/A C:\Users\Admin\AppData\Roaming\omsecor.exe C:\Windows\SysWOW64\omsecor.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe

"C:\Users\Admin\AppData\Local\Temp\f5c25fcca2bcf2cd2c68dc7bf354c81941dba2f11235aeedd0913ce10ebd4a8d.exe"

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4224,i,13544508926340531097,6671217806016090640,262144 --variations-seed-version --mojo-platform-channel-handle=4244 /prefetch:8

C:\Windows\SysWOW64\omsecor.exe

C:\Windows\System32\omsecor.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 lousta.net udp
FI 193.166.255.171:80 lousta.net tcp
US 8.8.8.8:53 171.255.166.193.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 97.90.14.23.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
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 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 14.179.89.13.in-addr.arpa udp
FI 193.166.255.171:80 lousta.net tcp
US 64.225.91.73:80 mkkuei4kdsz.com tcp

Files

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

MD5 a3ce96683aa2bed5ea8a53efa8525ec1
SHA1 1a9b48e5c3c33f0bb51e94067142de679bb39638
SHA256 40489cde87d07ff995871f247e3a338d07f4d10375018c022eb489a54fef9e56
SHA512 ec597ff6d6dbaf2db7d2999459a5daeca53a3668441ff0e2622846b0310c13ab755776512eabd7e429d1c22a1f064c93f11bd707993d64070832c92b64521aae

C:\Windows\SysWOW64\omsecor.exe

MD5 48592281885d2d69458e4f36363a99c4
SHA1 1ee3227bf720e0d9a9f3ea76c6bba4805d39fcd2
SHA256 605e35c45a4006ffbaeee7454f1135c2b7e48690bc33461bed1c23e3d95f0b06
SHA512 cdc88cac48a93c021eb9615d072bc63cbd00912f8b4868878b820c33d0384c83387fc564145c5cc525b82bd9d9bff12bfb4fa4cbc406972eba10ddf8ffdb78f8