Malicious PDF — malware analysis report

Static analysis result for SHA-256 403e3f97b35435de…

MALICIOUS

PDF

46.4 KB Created: 2021-06-10 15:10:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 56e25503ec6f3447dde8ca0621c8f42a SHA-1: 161b44fc15cb11be399182f591381df6452a9563 SHA-256: 403e3f97b35435ded95e913ea8c9e36c9386998f15edd4aa2773ef6503757340
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 0.9832

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/how-to-hack-jailbreak-roblox-ios-game-hack PDF link annotation
    • http://digilib-ppsunisma.ac.id/repository/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-safe-hacks-download_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/top-ten-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-movement-hacks_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/guuudd-info-roblox-online-hack_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/where-to-get-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-codes-live-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/como-hackear-coin-master-ios_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_004_off00005244.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5244 28060 bytes
SHA-256: 45c648f44a5ef962acaeca766e70e95f57a5c75f09996448935ea61d3c1fe4da
font_01_sfnt_off000091e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E5 18632 bytes
SHA-256: 3399fa9c38bcf4bbba90df6a9dbf3aaa4f913af53c714ef741d558622402d6ac

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