Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3f84e6cdff81f72…

MALICIOUS

PDF

53.3 KB Created: 2021-04-06 11:08:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5fee1da8b99cbb6127f0d68d228af712 SHA-1: 06d3910d3c69570c7cffa214672521c1208c2ec7 SHA-256: e3f84e6cdff81f724824df25bbda3789f28a2a18490ad3b2c51d6aa854dbcdad
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains heuristics indicating it's a lure for game hacks, specifically linking to 'enigmagenerator.com' with a Roblox game hack URL. The document body, though heavily obfuscated, contains text related to 'Free Robux 2021' and the same malicious URL. The presence of embedded URLs and the ML classifier's high confidence score suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8721

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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 https://enigmagenerator.com/app/431946152/roblox-game-hack PDF link annotation
    • http://optsuvenir.by/images/how-to-hack-roblox-for-unlimited-money.pdfIn PDF document text
    • https://tokunfome.com.br/images/free-robux-just-enter-password.pdfIn PDF document text
    • https://vtvvaals.nl/images/20210-free-robux.pdfIn PDF document text
    • https://avn.kz/images/roblox-free-level-6-and-level-7-injectors.pdfIn PDF document text
    • https://www.fhccu.com/images/how-to-download-hacks-in-roblox.pdfIn PDF document text
    • http://sscclc.edu.ec/images/blakberry-hack-roblox.pdfIn PDF document text
    • http://iacovoulaw.com/images/free-gui-roblox.pdfIn PDF document text
    • http://gremihostaleria.cat/images/free-non-virus-recorder-for-roblox.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/how-to-hack-roblox-accounts-2021-easy.pdfIn PDF document text
    • http://baofrance.com/images/hack-para-destruir-en-roblox.pdfIn PDF document text
    • http://dmoraitis.gr/images/proto-smasger-roblox-free.pdfIn PDF document text
    • http://kids-academy.pl/images/how-to-hack-surf-on-roblox.pdfIn PDF document text
    • http://www.sabbiadoro.net/images/walk-speed-hack-roblox.pdfIn PDF document text
    • http://zibai.eu/images/muscle-simulator-roblox-cheat-codes.pdfIn PDF document text
    • http://kruiz21.ru/images/how-to-get-free-clothes-on-roblox-2021-no-bc.pdfIn PDF document text
    • http://ilifemarket.ru/images/roblox-accounts-with-robux-for-free.pdfIn PDF document text
    • https://koeltotaal.com/images/dll-hack-for-roblox-2021.pdfIn PDF document text
    • http://petarda.hu/images/jailbreak-free-phone-calls-roblox.pdfIn PDF document text
    • http://www.tamogatoweb.hu/images/hack-para-counter-blox-roblox-offensive-download.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/roblox-skywars-infinite-wins-hack.pdfIn PDF document text
    • https://www.albisser.ch/images/free-overalls-roblox.pdfIn PDF document text
    • http://ce-tsv-nantes.fr/images/free-games-just-like-roblox.pdfIn PDF document text
    • http://dqdq.pl/images/robloxcom-jailbreak-hack.pdfIn PDF document text
    • http://www.oberberger.it/images/free-candy-roblox.pdfIn PDF document text
    • https://www.beaufortcollege.ie/images/snip-roblox-hack.pdfIn PDF document text
    • http://kruiz21.ru/images/how-to-hack-in-roblox-kozock.pdfIn PDF document text
    • http://uptodate.az/images/how-to-get-free-robux-on-roblox-on-ipad.pdfIn PDF document text
    • http://cosver.eu/images/how-to-get-free-shirts-on-roblox-2021.pdfIn PDF document text
    • http://arcnjournals.org/images/youtube-how-to-get-free-robux-seniak.pdfIn PDF document text
    • https://enpav.it/images/roblox-rap-hack.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-join-roblox-builders-club-free.pdfIn PDF document text
    • http://technologicalsc.com/images/free-robux-generator-no-human-survey.pdfIn PDF document text
    • http://w-i-r.de/images/how-do-i-hack-roblox-games.pdfIn PDF document text
    • http://xn--hrtetechnik-steinbach-51b.de/images/redline-cheat-roblox-download.pdfIn PDF document text
    • http://iluvlocalplaces.com/images/when-nerd-sees-free-robux.pdfIn PDF document text
    • http://pa-tanjungselor.go.id/images/roblox-hacks-for-booga-booga.pdfIn PDF document text
    • https://pa-waingapu.go.id/images/free-robux-from-apps.pdfIn PDF document text
    • https://www.abrapppe.org.br/images/da-hood-hacks-roblox.pdfIn PDF document text
    • http://hondenspecialist-engelien.nl/images/free-roblox-2021-rich-accounts-logins.pdfIn PDF document text
    • http://itbits.ie/images/free-robux-codes-trackid-sp006.pdfIn PDF document text
    • http://techmobil.pl/images/play-games-for-free-robux.pdfIn PDF document text
    • https://www.lavigny.ch/images/hack-a-game-in-roblox.pdfIn PDF document text
    • https://eleganceautospa.ca/images/charectaer-robux-hack-in-youtube.pdfIn PDF document text
    • http://gestibrok.com/images/how-to-hack-robux-java-script-pastebin.pdfIn PDF document text
    • http://mnp-realty.ru/images/free-noclip-download-roblox.pdfIn PDF document text
    • http://schottlandfieber.de/images/shotgun-willy-cheat-codes-roblox-id.pdfIn PDF document text
    • http://www.visiblefilm.com/images/how-to-wins-free-robux.pdfIn PDF document text
    • http://pgk-polaniec.pl/images/robux-for-free-no-scam.pdfIn PDF document text
    • http://hk-kan.org/images/furk-roblox-hack.pdfIn PDF document text
    +8 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000071fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x71FA 25644 bytes
SHA-256: bfe9c3b983765afc3d023249ac5e15a063b9e9609771230f21450ce6eed44eb6
font_01_sfnt_off0000ad82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD82 17980 bytes
SHA-256: 3fabd7c718a0ea7b63a0b524401b46bcdd8376adb45d9ea53b18b3ca5a7cb263