Malicious PDF — malware analysis report

Static analysis result for SHA-256 4caca4fb45cd3eb4…

MALICIOUS

PDF

34.2 KB Created: 2021-06-29 01:45:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 32bef758f69466b6db289c205b1b2b82 SHA-1: d55072e58e17a0fff77f804c74f6b1ca931ff50a SHA-256: 4caca4fb45cd3eb4b6b639e2f26a3f6a838aaec9356ff6f4d70afc4d95d565b8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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.co/app/431946152/using-cheat-engine-in-roblox-game-hack PDF link annotation
    • http://lib.untad.ac.id//repository/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-20219-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/haw-to-get-free-dominus-on-roblox-a-weeek-ago_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/got-hacked-on-roblox-can-i-get-my-stuff-bck_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/synapse-roblox-free-trial_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-hack-farming-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/hack-de-roblox-dragon-ball-rage_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/can-i-hack-uc-in-pubg_GM1330123889.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-free-robux-pastebin-javascript_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-win-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-promo-codes-list-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/reddit-roblox-lumber-tycoon-2-money-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/youtube-project-pokemon-roblox-hack-legebds_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-do-you-get-free-robux-in-real-life_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-do-you-hack-pn-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3A 22524 bytes
SHA-256: 3ed5f829a78a7fe0b3fc9a0ddc275e0e704d479484fff9a977274f7611979ed8
font_01_sfnt_off00006146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6146 18876 bytes
SHA-256: 33bd18293b96c6f7984f91b276f576d88acbed76194bfa12e517976f8f77de04

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