Malicious PDF — malware analysis report

Static analysis result for SHA-256 3127c49c4d20c5b0…

MALICIOUS

PDF

41.8 KB Created: 2021-05-11 06:31:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 89ac94ecc7e69ae66d47034bf433d7f1 SHA-1: be56ff087c872d786449c19dc013d816dbf7b235 SHA-256: 3127c49c4d20c5b0ef163364b12cb872fb987dbe88962bd1c4e90ec5c342f63e
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 0.9971

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://netcdn.xyz/app/431946152/free-robux-gift-card-codes-game-hack PDF link annotation
    • http://electro-nrg.com/images/coin-master-tips_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://electro-nrg.com/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/robux-download_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/coin-master-hack-no-human-verification-2021_GM406889139.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
stream_003_off000047fc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47FC 25132 bytes
SHA-256: 161d0eb4dfe036eb8e8e97189b0bd43ac1eea2c4f814f83434314c57c7ff4270
font_01_sfnt_off00007f9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F9E 18640 bytes
SHA-256: ab9c735b01157041a26a1754a1ceb43d7e93b9bb6de5cba43436a791952d9cfa

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