Malware Analysis Report

2024-10-19 08:19

Sample ID 240613-wx3e8sxere
Target Vault_Leaker.rar
SHA256 e591568853611277f501014fc7b11badb954fef715a78c84919ff7a0fbb95a4d
Tags
score
3/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
3/10

SHA256

e591568853611277f501014fc7b11badb954fef715a78c84919ff7a0fbb95a4d

Threat Level: Likely benign

The file Vault_Leaker.rar was found to be: Likely benign.

Malicious Activity Summary


Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 18:18

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 18:18

Reported

2024-06-13 18:22

Platform

win7-20240611-en

Max time kernel

119s

Max time network

122s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\Vault Leaker\installrequirements.bat"

Signatures

N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c "C:\Users\Admin\AppData\Local\Temp\Vault Leaker\installrequirements.bat"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 18:18

Reported

2024-06-13 18:22

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Vault Leaker\installrequirements.bat"

Signatures

N/A

Processes

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Vault Leaker\installrequirements.bat"

Network

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-13 18:18

Reported

2024-06-13 18:22

Platform

win7-20240419-en

Max time kernel

118s

Max time network

118s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\Vault Leaker\vault_leaker.py"

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\py_auto_file\ C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.py C:\Windows\system32\rundll32.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.py\ = "py_auto_file" C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\py_auto_file\shell\Read C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\py_auto_file\shell C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_Classes\Local Settings C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\py_auto_file C:\Windows\system32\rundll32.exe N/A
Key created \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\py_auto_file\shell\Read\command C:\Windows\system32\rundll32.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" C:\Windows\system32\rundll32.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A
N/A N/A C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c "C:\Users\Admin\AppData\Local\Temp\Vault Leaker\vault_leaker.py"

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Vault Leaker\vault_leaker.py

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe

"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Vault Leaker\vault_leaker.py"

Network

N/A

Files

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

MD5 a7c90746c73dbfb75bba3209e3a7dcc0
SHA1 12dc63e3ddd50028f5385a64c3065bd08969e63a
SHA256 32afd9ab049d87a34a6f139bb91582adc8851b5ce07edc948c28e980de5af94d
SHA512 7c006c2bb8c1d39bda0ae438fff3870d6fa665a7b52313f86fb92971a11f95eba49c0bfda48e370be77b657275c765f3b7b0bd58cbd722471d5398e08e05cbe4

Analysis: behavioral4

Detonation Overview

Submitted

2024-06-13 18:18

Reported

2024-06-13 18:22

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

150s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\Vault Leaker\vault_leaker.py"

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings C:\Windows\system32\cmd.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings C:\Windows\system32\OpenWith.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c "C:\Users\Admin\AppData\Local\Temp\Vault Leaker\vault_leaker.py"

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

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 --mojo-platform-channel-handle=3912 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 35.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
GB 172.217.169.74:443 tcp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 32.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 203.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 40.173.79.40.in-addr.arpa udp

Files

N/A