Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe7a1d8277cd056e…

MALICIOUS

PDF

45.0 KB Created: 2021-06-03 05:31:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9b12e9950e2da2a1a3919a5836088cca SHA-1: d3199723f5cfb2e3505046743ef5255d3a7e1efa SHA-256: fe7a1d8277cd056e44506a9f8721073deb49ea62b38702c459a214e73695011d
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 0.9865

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.online/app/406889139/coin-master-free-spins-no-generator-game-hack PDF link annotation
    • http://library.asih-husada.ac.id/repository/how-to-hack-roblox-with-cheat-engine-651_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/mosttechs-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/can-you-evolve-trade-pokemon-without-trading_GM1094591345.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/hack-coin-master-for-iphone_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://library.asih-husada.ac.id/repository/free-2021-robux_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
stream_004_off00005502.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5502 25568 bytes
SHA-256: 50cc9821c9216009b10ab4401fae4dddf919fb0072b666e0d431c8e978b05cb7
font_01_sfnt_off00008e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E7F 17884 bytes
SHA-256: be10e099a7c354b0305597b11d5de042d5d5c0c9f98208c4fce8626ff21c336c

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