Malicious PDF — malware analysis report

Static analysis result for SHA-256 65bef19ce79fb6c3…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 11:10:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 23bc5a394e5b7ef66e3f80d2934fd54f SHA-1: aefde8a42c06ef51a91f6747f9d67a18d19487af SHA-256: 65bef19ce79fb6c39f732247391cdc958eded42b1c92409d44c179b5a0cae0a6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a 'free generator / game hack' lure, directing users to a suspicious URL. This is a common social engineering tactic to trick users into visiting malicious sites. The ML classifier also strongly indicated maliciousness.

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/406889139/free-spin-coin-master-hack-2021-game-hack PDF link annotation
    • http://digilib.unbari.ac.id/repository/como-hackear-robux-en-roblox-2021-facil-y-rapido_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-get-free-roblox-codes-for-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-hack-build-you-one-boat-ccv_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-ro-ghoul-free-yen_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/jailbreak-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-get-a-boombox-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-free-dowlod_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-ios-hack-download_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-hack-roblox-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/dailyrobux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/noob-vs-pro-vs-hacker-roblox-bloxburg-build_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-codes-no-survey-no-download-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-just-click_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
font_00_sfnt_off000031e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E0 22804 bytes
SHA-256: 7969f0aa0aea43017f4ca250843d011ac41f9890aea459278956ec7185e1c737
font_01_sfnt_off000064fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64FD 18748 bytes
SHA-256: 09e9522e43d1493e395b46c6e396a2d39f5a619d28468af8eceb278664062f1f

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