Malware Analysis Report

2024-10-23 20:55

Sample ID 230709-sarhnsdd96
Target download.exe
SHA256 6957a1d41318c04e7086774c6822dff2684a62300ece32225e1080cd0acc8a49
Tags
rat vanillarat persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6957a1d41318c04e7086774c6822dff2684a62300ece32225e1080cd0acc8a49

Threat Level: Known bad

The file download.exe was found to be: Known bad.

Malicious Activity Summary

rat vanillarat persistence

Vanillarat family

VanillaRat

Vanilla Rat payload

Vanilla Rat payload

Executes dropped EXE

Loads dropped DLL

Legitimate hosting services abused for malware hosting/C2

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-07-09 14:55

Signatures

Vanilla Rat payload

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

Vanillarat family

vanillarat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-07-09 14:55

Reported

2023-07-09 14:58

Platform

win7-20230705-en

Max time kernel

135s

Max time network

153s

Command Line

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

Signatures

VanillaRat

rat vanillarat

Vanilla Rat 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
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

Executes dropped EXE

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

Loads dropped DLL

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-511725148-388773979-2853099937-1000\Software\Microsoft\Windows\CurrentVersion\Run\download = "C:\\Users\\Admin\\AppData\\Roaming\\download.exe" C:\Users\Admin\AppData\Roaming\download.exe N/A

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\download.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\download.exe N/A

Suspicious use of SetWindowsHookEx

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

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 6.tcp.eu.ngrok.io udp
DE 3.68.171.119:16195 6.tcp.eu.ngrok.io tcp

Files

memory/1984-54-0x00000000010B0000-0x00000000010D2000-memory.dmp

memory/1984-55-0x0000000001000000-0x0000000001040000-memory.dmp

\Users\Admin\AppData\Roaming\download.exe

MD5 3d31c31ef4a60bf94a3d70abc8c6dfe3
SHA1 03912837c3f31bcd0c6f0c2aaa68cd3535d8cc99
SHA256 6957a1d41318c04e7086774c6822dff2684a62300ece32225e1080cd0acc8a49
SHA512 5ba7dd53e3b4af4442b8f33d8882b19698fb6c9262b5bc2fcbc6841b8ce9cc85c9e7eea8a317358aba9849fd33d86c82abf39bc6d44f8b9b98a7cd93b5baeed1

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

MD5 3d31c31ef4a60bf94a3d70abc8c6dfe3
SHA1 03912837c3f31bcd0c6f0c2aaa68cd3535d8cc99
SHA256 6957a1d41318c04e7086774c6822dff2684a62300ece32225e1080cd0acc8a49
SHA512 5ba7dd53e3b4af4442b8f33d8882b19698fb6c9262b5bc2fcbc6841b8ce9cc85c9e7eea8a317358aba9849fd33d86c82abf39bc6d44f8b9b98a7cd93b5baeed1

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

MD5 3d31c31ef4a60bf94a3d70abc8c6dfe3
SHA1 03912837c3f31bcd0c6f0c2aaa68cd3535d8cc99
SHA256 6957a1d41318c04e7086774c6822dff2684a62300ece32225e1080cd0acc8a49
SHA512 5ba7dd53e3b4af4442b8f33d8882b19698fb6c9262b5bc2fcbc6841b8ce9cc85c9e7eea8a317358aba9849fd33d86c82abf39bc6d44f8b9b98a7cd93b5baeed1

memory/2320-63-0x0000000000E10000-0x0000000000E32000-memory.dmp

memory/2320-64-0x0000000004B70000-0x0000000004BB0000-memory.dmp

memory/2320-65-0x0000000004B70000-0x0000000004BB0000-memory.dmp