Malware Analysis Report

2024-09-09 20:24

Sample ID 240621-vqpecsscqk
Target VineMEMZ-Original.exe
SHA256 5f6a8f0e85704eb30340a872eec136623e57ab014b4dd165c68dd8cd76143923
Tags
bootkit persistence ransomware
score
8/10

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
8/10

SHA256

5f6a8f0e85704eb30340a872eec136623e57ab014b4dd165c68dd8cd76143923

Threat Level: Likely malicious

The file VineMEMZ-Original.exe was found to be: Likely malicious.

Malicious Activity Summary

bootkit persistence ransomware

Event Triggered Execution: Image File Execution Options Injection

Executes dropped EXE

Writes to the Master Boot Record (MBR)

Sets desktop wallpaper using registry

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-21 17:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-21 17:11

Reported

2024-06-21 17:12

Platform

win11-20240611-en

Max time kernel

30s

Command Line

"C:\Users\Admin\AppData\Local\Temp\VineMEMZ-Original.exe"

Signatures

Event Triggered Execution: Image File Execution Options Injection

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskkill.exe\Debugger = "rekt.exe" C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\logonui.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe\Debugger = "rekt.exe" C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "rekt.exe" C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\shutdown.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\shutdown.exe\Debugger = "rekt.exe" C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskkill.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mmc.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mmc.exe\Debugger = "rekt.exe" C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\logonui.exe\Debugger = "rekt.exe" C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe\Debugger = "rekt.exe" C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2394516847-3409208829-2230326962-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Roaming\\Data\\Pussy.png" C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\AUDIODG.EXE N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5072 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\VineMEMZ-Original.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 5072 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\VineMEMZ-Original.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 5072 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\VineMEMZ-Original.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 3408 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 3408 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 3408 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 4104 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 4104 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 4104 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 580 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 2424 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 2424 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2316 wrote to memory of 2424 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Users\Admin\AppData\Roaming\MEMZ.exe
PID 2424 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Windows\SysWOW64\notepad.exe
PID 2424 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Windows\SysWOW64\notepad.exe
PID 2424 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Roaming\MEMZ.exe C:\Windows\SysWOW64\notepad.exe

Processes

C:\Users\Admin\AppData\Local\Temp\VineMEMZ-Original.exe

"C:\Users\Admin\AppData\Local\Temp\VineMEMZ-Original.exe"

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

"C:\Users\Admin\AppData\Roaming\MEMZ.exe"

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

/watchdog

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

/watchdog

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

/watchdog

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

/main

C:\Windows\SysWOW64\notepad.exe

"C:\Windows\System32\notepad.exe" \note.txt

C:\Windows\system32\AUDIODG.EXE

C:\Windows\system32\AUDIODG.EXE 0x00000000000004E4 0x00000000000004EC

Network

N/A

Files

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

MD5 5761ae6b5665092c45fc8e9292627f88
SHA1 a7f18d7cf5438ee7dcb4e644163f495d3fa9c0ef
SHA256 7acabca3631db2a73a5e20abd050097e44390ead1d74717aed936601904b73c2
SHA512 1d743b407663e00a296c2ae45cb5a05a0866657afafbc9e8220e4c1839cbab2c09bf2a3510ec8016f902ccb7254edddf2a3412e7f5a4cafcabbeb5724a67b46e

C:\note.txt

MD5 910efec550edf98bf4f4e7ab50ca8f98
SHA1 4571d44dc60e892fb22ccd0bc2c79c3553560742
SHA256 7349f657a8d247fc778b7dd68e88bc8aba73bf2c399dc17deb2c9114c038430b
SHA512 320de5e34c129dd4a742ff352cfe0be2fac5874b593631529e53d5fe513709ac01f5d1d3dfae659f36a2a33aae51534ec838f5d3748cd6d1230a0f3d29341442

C:\Users\Admin\AppData\Roaming\Data\2.bin

MD5 8766dce04feb646bf62206d64d6eb0ba
SHA1 91c5d588028c6c949e9cbcec950bcfaa35a791e4
SHA256 f87e1ab69bef059744ee9244f37b0f21ef7d7b06fc5245094cfa22637ef6ae9d
SHA512 0bc8fc880bb94ad55a732f2be207d88a6bb0ae8d97f91819e889d04420a71ae5d91af21861bad351c5fd7f4e944c1899b17df326bf19d310cc31a95fd38ee6a3

C:\Users\Admin\AppData\Roaming\Data\8.bin

MD5 5ada580c290b53327fc8db29d5cd66c5
SHA1 a504aff6a9fa93bf4ccb69df17b5238804c659f9
SHA256 5dcf1f4b285a6dd70ec7acd77eeb5752a3d381a8a697eafd394fcde615f3ba63
SHA512 36da1958e7b4fad5367b257d9343c4eab59d50b01c610514d48eae2d0eeabf7efd06dd8fc63551a0a7e11df91aa3ceb063003cdd9c30c6755431ba218524fd49