Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4988ca1ffdf477d…

MALICIOUS

PDF

65.2 KB Created: 2021-04-05 20:47:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9da5b27d4c3e38023b0d4f77ff678d68 SHA-1: 284f31b672b2e096dafcb37ae8810d72adf2c7ce SHA-256: d4988ca1ffdf477df3f24245790f635c1d2b4fd0d95feaba2811119be139914c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing and an urgency-based lure. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6271

Heuristics 5

  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://gaminggenerator.org/app/431946152/free-robux-ios-no-human-verification-2021.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/free-robux-ios-no-human-verification-2021 PDF link annotation
    • http://salantiskis.lt/images/free-roblox-hack-logiciel.pdfIn PDF document text
    • http://hondenspecialist-engelien.nl/images/free-roblox-black.pdfIn PDF document text
    • http://www.maakherumusic.net/images/how-to-look-good-on-roblox-for-free.pdfIn PDF document text
    • http://dorfgaragethalwil.ch/images/how-to-hack-someone-in-roblox-2021.pdfIn PDF document text
    • http://uptodate.az/images/quick-robux-hacks.pdfIn PDF document text
    • http://hk-kan.org/images/cheat-monnaie-roblox.pdfIn PDF document text
    • http://www.cosver.nl/images/how-to-hack-roblox-passwords-on-mobile.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-robux-not-clickbait.pdfIn PDF document text
    • http://manfeld.dk/images/roblox-coding-online-course-free.pdfIn PDF document text
    • http://behsanroshd.com/images/real-how-to-get-free-robux.pdfIn PDF document text
    • http://dmoraitis.gr/images/free-show-rules-for-free-robux-on-roblox.pdfIn PDF document text
    • http://stitchingart.com/images/free-roblox-lua-exploits.pdfIn PDF document text
    • https://www.laarsenco.nl/images/roblox-how-to-cheat-on-obstacle-paradise.pdfIn PDF document text
    • https://www.u-pin-it.com/images/how-to-make-a-badge-for-free-in-roblox.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/roblox-neon-district-hacker.pdfIn PDF document text
    • http://www.malonmalon.com.ar/images/roblox-cheating-text-scripts.pdfIn PDF document text
    • http://schrichte.de/images/roblox-hacks-for-robux-2021.pdfIn PDF document text
    • http://briankellyforcongress.com/images/how-to-get-the-right-roblox-account-pin-hack.pdfIn PDF document text
    • http://babbibooth.com/images/roblox-paintball-daxter33-cheats.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/free-hugs-roblox-id-decal.pdfIn PDF document text
    • http://cristalysoptic.com/images/how-to-get-robux-for-free-on-android.pdfIn PDF document text
    • http://cristalysoptic.com/images/download-roblox-for-free-on-android.pdfIn PDF document text
    • http://akademiatenisa.org/images/free-promo-codes-for-roblox-clothes.pdfIn PDF document text
    • http://scuttworksdesigns.us/images/checking-free-models-on-roblox.pdfIn PDF document text
    • http://ferienwohnung-walker.de/images/robux-free-no-human-verification-2021.pdfIn PDF document text
    • https://www.yewtreealpacas.co.uk/images/free-roblox-giftcards-not-used-100-80.pdfIn PDF document text
    • http://agrao.in/images/free-robux-teleplate.pdfIn PDF document text
    • https://socialvalue.gr/images/robux-hack-v6-5.pdfIn PDF document text
    • http://www.campiresine.it/images/timber-roblox-hack.pdfIn PDF document text
    • http://kim-kinder-im-mittelpunkt.de/images/www-play-roblox-for-free-com.pdfIn PDF document text
    • https://rincondelentrenador.com/images/game-guardian-roblox-hack.pdfIn PDF document text
    • https://www.apartmanychorvatsko24.cz/images/vesteria-roblox-free.pdfIn PDF document text
    • http://nevesomost.by/images/how-to-get-free-robux-inspect.pdfIn PDF document text
    • http://bernd-voehringer.de/images/free-robux-codes-2021-for-adopt-me.pdfIn PDF document text
    • https://pagadder.com/images/free-chill-cap-roblox.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/free-robux-codes-not-used-2021.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/roblox-pastbin-hack.pdfIn PDF document text
    • http://www.cosver.nl/images/robux-generator-online-free.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-bird-guitar-solo-roblox.pdfIn PDF document text
    • https://www.seeingindependence.org/images/roblox-wings-for-free.pdfIn PDF document text
    • http://hydroconseil.com/images/free-robux-roblox-bots.pdfIn PDF document text
    • http://jijel.info/images/how-to-hack-any-game-roblox.pdfIn PDF document text
    • http://elearnfactory.com/images/get-free-robux-no-human-verify.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/how-to-hack-into-other-peoples-roblox-accounts-2021.pdfIn PDF document text
    • https://www.abrapppe.org.br/images/does-roblox-give-free-robux.pdfIn PDF document text
    • http://grupodin.com.br/images/roblox-hack-dll-2021.pdfIn PDF document text
    • http://parkinsononline.com/images/free-robux-no-phone-number.pdfIn PDF document text
    • http://ukrainiansofbuffalo.com/images/escape-room-roblox-cheats-enchanted-forest.pdfIn PDF document text
    • https://www.lomrad.go.th/images/roblox-robux-hack-2021.pdfIn PDF document text
    +13 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00008396.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8396 40256 bytes
SHA-256: 22d4444e4da36b95bb55336661e9da5a12d3ce5e659cef382984c267d31f8f3e
font_01_sfnt_off0000d992.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD992 19148 bytes
SHA-256: 52d5ee2a5b22147e1b5ec194969935895b2a638c7f9e2b9efdeedd779e3d5d5c

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