Malicious PDF — malware analysis report

Static analysis result for SHA-256 a98ad7a43323c8f1…

MALICIOUS

PDF

244.3 KB Created: 2021-04-04 09:56:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b8b5a97f17d72c11eb07ac619de96bb4 SHA-1: bb8160f8a77f9bf49537245a0fb937867f775275 SHA-256: a98ad7a43323c8f15b4eb336a662511e32d9ec837638ea94d45e93c39606ea21
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a specific phishing signature related to Roblox. The document body, though heavily obfuscated, contains references to 'Roblox' and 'free game', and the embedded URI points to a URL also related to obtaining free games on Roblox. This suggests a phishing or scam attempt designed to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier clean score 0.1227

Heuristics 4

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://gaminggenerator.org/app/431946152/how-to-get-a-free-game-on-roblox
    • http://technologicalsc.com/images/bloxmarket-free-robux.pdf
    • http://riccardodurso.it/images/account-being-hacked-on-roblox-with-2-step.pdf
    • http://5346000.com/images/roblox-death-sound-free-dwonload.pdf
    • http://junktiquecollector.com/images/free-robux-no-scam-no-survey.pdf
    • https://www.porthos.it/images/roblox-hacked-accounts-list-2021-with-robux.pdf
    • http://steklofara.com.ua/images/to-get-free-robux.pdf
    • http://berntfoto.dk/images/free-robux-zephplayz.pdf
    • http://www.peterdejonge.nl/images/sentinel-roblox-hack.pdf
    • https://www.europap.cz/images/crear-cuenta-hack-en-roblox.pdf
    • http://ordineingsa.it/images/free-download-robloxcom.pdf
    • http://stitchingart.com/images/evil-hacker-game-roblox.pdf
    • http://iricamidelcuore.it/images/how-do-i-hack-roblox-free-robux.pdf
    • http://unc-europe.com/images/roblox-unjailbreak-x-script-free.pdf
    • http://kulturhusbabberich.nl/images/roblox-free-gamepass-game.pdf
    • http://petarda.hu/images/cloudbux-net-roblox-hack.pdf
    • http://legs11.co.za/images/earn-free-robux-2021.pdf
    • https://www.najeebqasmi.com/images/roblox-hack-redline-v3-0-download.pdf
    • http://posterprintshop.nl/images/how-to-get-free-robux-on-iphone-2021.pdf
    • https://sdg-trade.com/images/roblox-highschool-hack-script-oder.pdf
    • http://stroygrad-spb.com/images/free-hack-on-roblox-no-email-or-no-password.pdf
    • http://www.awakeningtruth.org/images/roblox-robux-hack-generator-no-survey-2021.pdf
    • http://texnes-plus.gr/images/cache-http-freerobuxclub.pdf
    • http://www.prylfabriken.se/images/how-to-get-free-hair-roblox.pdf
    • http://avocatultau.eu/images/free-robux-2021-february.pdf
    • http://onlinemusicsolutions.com.au/images/free-robux-without-human-verification-ipad.pdf
    • http://gamixpaliwa.pl/images/fortnite-roblox-free.pdf
    • http://www.pro-futuro.eu/images/memez-hack-roblox.pdf
    • http://echosvoix.ch/images/roblox-builders-club-free-trial-2021.pdf
    • https://www.ukrtrans.biz/images/cheat-engine-roblox-jailbreak.pdf
    • http://pia2000.net/images/hack-roblox-com.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00037f2d.bin
1f08ab1d02290db6fc386cce366977160f181d14f780a19039c38a227a7b587d
pdf-font-stream PDF embedded font (sfnt) at offset 0x37F2D 19616 bytes
font_01_sfnt_off0003a8eb.bin
f917b090b28bc9c9286409c21e359867ff889cd185de47feb08baa452211a7dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x3A8EB 18096 bytes