Malware Analysis Report

2024-09-11 00:02

Sample ID 240619-wdlclszfkn
Target H-Output.exe
SHA256 f16b28324fb8b97e433712fec6db4d422c32199c488e3d8a9dbc1acbbdc08307
Tags
neshta persistence spyware stealer
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 Overview

score
10/10

SHA256

f16b28324fb8b97e433712fec6db4d422c32199c488e3d8a9dbc1acbbdc08307

Threat Level: Known bad

The file H-Output.exe was found to be: Known bad.

Malicious Activity Summary

neshta persistence spyware stealer

Neshta

Detect Neshta payload

Neshta family

Executes dropped EXE

Reads user/profile data of web browsers

Modifies system executable filetype association

Drops file in Windows directory

Drops file in Program Files directory

Enumerates physical storage devices

Unsigned PE

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-19 17:48

Signatures

Detect Neshta payload

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

Neshta family

neshta

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-19 17:48

Reported

2024-06-19 17:51

Platform

win10-20240404-en

Max time kernel

134s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\H-Output.exe"

Signatures

Detect Neshta payload

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

Neshta

persistence spyware neshta

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\H-Output.exe N/A
N/A N/A C:\Steam.exe N/A
N/A N/A C:\Steam.exe N/A
N/A N/A C:\Steam.exe N/A

Modifies system executable filetype association

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A

Reads user/profile data of web browsers

spyware stealer

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\PROGRA~2\WINDOW~2\wab.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaws.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\ExtExport.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmpshare.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\WI8A19~1\ImagingDevices.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaw.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\ielowutil.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\WINDOW~2\wabmig.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmlaunch.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmplayer.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\java.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmprph.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\WINDOW~2\WinMail.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\iexplore.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmpconfig.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\WINDOW~4\ACCESS~1\wordpad.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\setup_wm.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\DISABL~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\svchost.com C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" C:\Users\Admin\AppData\Local\Temp\H-Output.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\3582-490\H-Output.exe N/A
Token: SeDebugPrivilege N/A C:\Steam.exe N/A
Token: SeDebugPrivilege N/A C:\Steam.exe N/A
Token: SeDebugPrivilege N/A C:\Steam.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1340 wrote to memory of 4880 N/A C:\Users\Admin\AppData\Local\Temp\H-Output.exe C:\Users\Admin\AppData\Local\Temp\3582-490\H-Output.exe
PID 1340 wrote to memory of 4880 N/A C:\Users\Admin\AppData\Local\Temp\H-Output.exe C:\Users\Admin\AppData\Local\Temp\3582-490\H-Output.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\H-Output.exe

"C:\Users\Admin\AppData\Local\Temp\H-Output.exe"

C:\Users\Admin\AppData\Local\Temp\3582-490\H-Output.exe

"C:\Users\Admin\AppData\Local\Temp\3582-490\H-Output.exe"

C:\Steam.exe

\Steam.exe

C:\Steam.exe

\Steam.exe

C:\Steam.exe

\Steam.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 5.173.189.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\3582-490\H-Output.exe

MD5 0ce3cfb3f39c6ab542bd006acc91998d
SHA1 d34331d9874a888e78be88a7f67d2d8f0cfa5b21
SHA256 71a9b9cb96b2b80b352cbac72a40129377dcb09f0e4abb78806decdfda312720
SHA512 a1f406af385f3b7cecea9b78f19028a5db59a051050a7514c13b7fbdb4092fe5debcc8d0c408f4f50c6da6aa0bfe7e6865722c35af288197863fb70951be42f0

memory/4880-6-0x00007FFAA4D43000-0x00007FFAA4D44000-memory.dmp

memory/4880-7-0x0000000000280000-0x00000000002BC000-memory.dmp

C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

MD5 3b73078a714bf61d1c19ebc3afc0e454
SHA1 9abeabd74613a2f533e2244c9ee6f967188e4e7e
SHA256 ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29
SHA512 75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

memory/4880-69-0x00007FFAA4D40000-0x00007FFAA572C000-memory.dmp

memory/488-70-0x00007FFAA4D40000-0x00007FFAA572C000-memory.dmp

memory/488-71-0x00007FFAA4D40000-0x00007FFAA572C000-memory.dmp

memory/488-73-0x00007FFAA4D40000-0x00007FFAA572C000-memory.dmp

memory/1340-74-0x0000000000400000-0x000000000041B000-memory.dmp

memory/1340-76-0x0000000000400000-0x000000000041B000-memory.dmp

memory/4880-77-0x00007FFAA4D40000-0x00007FFAA572C000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Steam.exe.log

MD5 5a18c0096c3d708f2e104c1d69eea8db
SHA1 a7ed897ef2a0e2fa6c9f00b2c60138213147c0a5
SHA256 8ce4225532855b6cbea1da75a3bee1ef18518ab5ad333d311377666628b2a700
SHA512 9072a9ff528e966cec0aa12e6e52f45e60c00c4e6a375b14ac7fa882b31fcbc50c5dd3b11f8493e87770e392c4a9b584252baec363eb70b601b77053522922fe