Malicious PDF — malware analysis report

Static analysis result for SHA-256 844d1cb40805f0d0…

MALICIOUS

PDF

53.3 KB Created: 2021-04-06 22:58:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 478f43ac07dbd02ec20095ca110e6d9c SHA-1: c04ea2bbecc68b1cffd4499c2d92d7198fe64629 SHA-256: 844d1cb40805f0d0680531c922926d14b129bb5a53c6580b18ee9d77a43b8232
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and 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 0.8721

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://sfsbm.org/images/how-to-make-everything-free-on-roblox.pdfIn PDF document text
    • https://komakinosite.jp/images/robux-free-ap.pdfIn PDF document text
    • https://pemadamapi.net/images/new-hack-for-roblox-deathrun-2021-november-pc.pdfIn PDF document text
    • http://bagna.pl/images/how-to-make-robux-on-roblox-for-free.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/roblox-r-cheats-2021.pdfIn PDF document text
    • https://www.milewood.co.uk/images/roblox-break-free.pdfIn PDF document text
    • http://prodent.com.ua/images/how-to-hack-roblox-account-stap-by-stap.pdfIn PDF document text
    • http://nosocomium.rv.ua/images/classic-builders-club-roblox-free.pdfIn PDF document text
    • http://rushxpress.de/images/free-codes-for-roblox-download-apk.pdfIn PDF document text
    • http://www.imwd.it/images/hack-this-roblox-account.pdfIn PDF document text
    • http://legs11.co.za/images/free-robux-for-kids-no-verification.pdfIn PDF document text
    • http://axia-verlag.at/images/best-robux-hack.pdfIn PDF document text
    • http://gamixpaliwa.pl/images/hack-dowloads-robux.pdfIn PDF document text
    • http://kontaktadig.se/images/invisible-shirt-roblox-free.pdfIn PDF document text
    • http://mydevice.com.au/images/free-face-roblox-2021.pdfIn PDF document text
    • http://icomsolutions.com.au/images/free-codes-free-price-game-passes-roblox.pdfIn PDF document text
    • http://www.lionel-seppoloni.fr/images/sentinel-hack-roblox.pdfIn PDF document text
    • https://ballaratcaravans.com.au/images/roblox-dont-sign-up-for-free.pdfIn PDF document text
    • https://inspective.nl/images/free-roblox-toy-codes-list.pdfIn PDF document text
    • http://medicalafrica.net/images/free-roblox-money-codes-2021.pdfIn PDF document text
    • http://www.campiresine.it/images/youtube-free-robux-promo-codes.pdfIn PDF document text
    • https://open-coffee-drimmelen-geertruidenberg.nl/images/roblox-hacked-place.pdfIn PDF document text
    • https://www.stkdb.cz/images/free-google-hoodie-roblox-catalog.pdfIn PDF document text
    • http://arch-centr.ru/images/bloxmarket-free-robux.pdfIn PDF document text
    • https://www.najeebqasmi.com/images/how-to-hack-power-training-simulator-roblox.pdfIn PDF document text
    • https://inscastellar.cat/images/how-to-hack-protect-jojo-roblox.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/hack-de-roblox-para-todos-los-juegos.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/free-roblox-items-for-1m-instagram-followers.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/free-roblox-robux-card-codes.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/free-roblox-accounts-june-2021.pdfIn PDF document text
    • http://www.maakherumusic.net/images/free-shirt-templates-for-roblox-2021.pdfIn PDF document text
    • https://ballaratcaravans.com.au/images/how-to-get-free-robux-and-tix-without-verification.pdfIn PDF document text
    • https://servotecnica.com/images/play-roblox-theobbypros123-acount-for-free.pdfIn PDF document text
    • http://shiny-nn.ru/images/roblox-hex-hack.pdfIn PDF document text
    • http://wcasrock.org/images/flamingo-free-draw-roblox.pdfIn PDF document text
    • http://logisticgroup.co/images/free-pet-in-roblox.pdfIn PDF document text
    • http://musestravel.com/images/free-roblox-account-hacker.pdfIn PDF document text
    • http://www.hawler.in/images/how-to-hack-roblox-jailbreak.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/noob-outfit-roblox-free.pdfIn PDF document text
    • https://eurekaaccounting.co.za/images/how-do-you-hack-on-roblox-jailbreak.pdfIn PDF document text
    • http://florentineholding.com/images/robux-free-hack-xyz.pdfIn PDF document text
    • http://mittlenberg.ch/images/free-robux-form-watch-ads.pdfIn PDF document text
    • http://karldall.dk/images/how-to-get-free-and-easy-robux.pdfIn PDF document text
    • http://accesslabs.ca/images/roblox-retail-tycoon-cheats.pdfIn PDF document text
    • https://gafaseo.com/images/roblox-skins-download-free.pdfIn PDF document text
    • https://www.extremeoutdoorleague.co.za/images/hack-tshirt-roblox.pdfIn PDF document text
    • https://www.dachytarasowe.eu/images/how-to-hack-roblox-accounts-2021-august.pdfIn PDF document text
    • http://www.occquimica.com.br/images/roblox-rocitizen-money-hack.pdfIn PDF document text
    • http://bassacctaxservices.com/images/robux-hack-a-scam.pdfIn PDF document text
    +12 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00006dab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6DAB 27324 bytes
SHA-256: 9feba68b82f2b3339cded6e9bc4c7a007c2bd8a4fea57b5f344d3727be8e1a3c
font_01_sfnt_off0000ac0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC0E 18508 bytes
SHA-256: 0224d51d759c043c007fd94f614565b9ef954d2473a36fb928c54b6f84dab4ca