Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d4f32318bb173a2…

MALICIOUS

PDF

34.7 KB Created: 2021-06-19 00:51:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4da97603eeb18404624b7e801da19724 SHA-1: b716fe124480e290c696823245f523f640440b21 SHA-256: 7d4f32318bb173a252fd8d66edce0d118f3805e05ef363a13308a390782fad6a
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 0.9980

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 http://netcdn.co/app/431946152/how-to-get-free-bc-on-roblox-pc-game-hack PDF link annotation
    • http://perpus.masda.ac.id//repository/pokemon-go-free-legendary-pokemon_GM1094591345.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-promo-codes-2021-october_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-pet-food-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-jailbreak-noclip-hack-2021-unpatched-download-link_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-items-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-do-you-get-free-robux-on-roblox-on-ipad_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30BA 22356 bytes
SHA-256: 607e5c1ebd7c1cd6b759d72830c106864685e8cb8abf07b77e55c3cc264fa242
font_01_sfnt_off0000624f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624F 19072 bytes
SHA-256: f119913a79123dbce10e3b90705d16f4e18e08e04e39ba0cd86490be565f84b2

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