Malicious PDF — malware analysis report

Static analysis result for SHA-256 708d39ed51c81c34…

MALICIOUS

PDF

35.7 KB Created: 2021-07-03 11:49:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5a9df5a129e9983b10acbc988a07a727 SHA-1: 18356c588483106d3cb3b7bf1ff34e2cf7ff1929 SHA-256: 708d39ed51c81c349a44e887c22a55b670a4502ce10b3991ac40a961fd143937
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.tw/app/431946152/free-roblox-accounts-generator-game-hack PDF link annotation
    • http://fia.ub.ac.id/katalog/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/toolbox-mod_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/online-hacking-tricks-coin-master_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/unlimited-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/roblox-robux-hack-apk-download_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/coin-master-cheat-apk-free-download_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
font_00_sfnt_off000036a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36A2 21896 bytes
SHA-256: 8d045d066434531d91b8aea08bec40cbcd1b63b9fdaf4541317774dc63acfc63
font_01_sfnt_off00006700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6700 18896 bytes
SHA-256: ee8fb002bcaaf8718cc01282f8600ef61b633d8a753509fe17ddb4e6784a3394

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