Malware Analysis Report

2024-09-22 16:45

Sample ID 211223-kzwjxshdf3
Target 0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55
SHA256 0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55
Tags
rat darkvnc 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

0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55

Threat Level: Known bad

The file 0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55 was found to be: Known bad.

Malicious Activity Summary

rat darkvnc neshta persistence spyware stealer

DarkVNC

Neshta family

DarkVNC Payload

Darkvnc family

Detect Neshta Payload

Modifies system executable filetype association

Neshta

DarkVNC Payload

Executes dropped EXE

Reads user/profile data of web browsers

Suspicious use of SetThreadContext

Drops file in Windows directory

Drops file in Program Files directory

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Modifies registry class

MITRE ATT&CK Matrix V6

Analysis: static1

Detonation Overview

Reported

2021-12-23 09:02

Signatures

DarkVNC Payload

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

Darkvnc family

darkvnc

Detect Neshta Payload

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

Neshta family

neshta

Analysis: behavioral1

Detonation Overview

Submitted

2021-12-23 09:02

Reported

2021-12-23 09:05

Platform

win10-en-20211208

Max time kernel

122s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe"

Signatures

DarkVNC

rat darkvnc

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\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A

Neshta

persistence spyware neshta

DarkVNC Payload

rat
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

Reads user/profile data of web browsers

spyware stealer

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 512 set thread context of 2940 N/A C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe C:\Windows\system32\WerFault.exe

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\armsvc.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WINDOW~4\ACCESS~1\wordpad.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\DISABL~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\ielowutil.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\setup_wm.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmpconfig.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.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\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\ExtExport.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmlaunch.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WI8A19~1\ImagingDevices.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~3\PACKAG~1\{F4220~1\VC_RED~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.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\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.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\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.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\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WINDOW~2\wabmig.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WINDOW~2\WinMail.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmplayer.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmpshare.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WINDOW~2\wab.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\INTERN~1\iexplore.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.71\GO664E~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.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\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\WI54FB~1\wmprph.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.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\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A
File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.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\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.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\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1052 wrote to memory of 512 N/A C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe
PID 1052 wrote to memory of 512 N/A C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe
PID 1052 wrote to memory of 512 N/A C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe
PID 512 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe C:\Windows\system32\WerFault.exe
PID 512 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe C:\Windows\system32\WerFault.exe
PID 512 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe C:\Windows\system32\WerFault.exe
PID 512 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe C:\Windows\system32\WerFault.exe
PID 512 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe

"C:\Users\Admin\AppData\Local\Temp\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe"

C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe

"C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe

Network

Country Destination Domain Proto
US 52.109.8.19:443 tcp
US 8.8.8.8:53 time.windows.com udp
NL 20.101.57.9:123 time.windows.com udp
US 23.83.133.126:80 tcp
US 23.83.133.126:80 tcp

Files

memory/512-115-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe

MD5 0ee2c60b8e99b5da3c495f1dd2861cd5
SHA1 0d040ef434e0db2679ce78ec8996895399cc2cf9
SHA256 1ca91e55867ad256da14a7b0c5679e94395da033e87aab24c9a9187963829a87
SHA512 996ae9cc73b2aee3049975c757210724b838e959fd79c811b80ea1b0c23a6949e40805f62a77a66400ae5e1b3d5d97dc0af28b8ff474794068efa43a6f4e9005

C:\Users\Admin\AppData\Local\Temp\3582-490\0531cae688e34d09b9a7da4e5f50cedaf854d47e7d15eae958cd569a1ecf0b55.exe

MD5 0ee2c60b8e99b5da3c495f1dd2861cd5
SHA1 0d040ef434e0db2679ce78ec8996895399cc2cf9
SHA256 1ca91e55867ad256da14a7b0c5679e94395da033e87aab24c9a9187963829a87
SHA512 996ae9cc73b2aee3049975c757210724b838e959fd79c811b80ea1b0c23a6949e40805f62a77a66400ae5e1b3d5d97dc0af28b8ff474794068efa43a6f4e9005

memory/2940-118-0x0000000000000000-mapping.dmp

memory/2940-119-0x00000266A57C0000-0x00000266A57E9000-memory.dmp

memory/2940-120-0x00000266A5950000-0x00000266A5A1A000-memory.dmp