Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba0c00047105ac99…

MALICIOUS

PDF

48.0 KB Created: 2021-06-08 11:19:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: bc1f470623457eb526a2bb340ccd0ee0 SHA-1: 74674fca2da72d743572e246c93d6879d39cd246 SHA-256: ba0c00047105ac99e959d5dc3b78513ac49ebbea96d3c01d176dd52392c283bb
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 0.9871

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.tw/app/431946152/redeem-roblox-gift-card-free-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/wurst-client-download_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-get-money-in-roblox-tycoon-simulator_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/e-free-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/wurst-hacked-client_GM479516143.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_004_off0000525c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x525C 30188 bytes
SHA-256: e5362d0dfd51c11e2e4084997f69c167c09817e7506e7a7ca9ff2496d59160ea
font_01_sfnt_off000097c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97C1 18836 bytes
SHA-256: 1645aa52597e5648cec0b8030ab8d0c733be7d873a5d1ef18b104e89281d73fa

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