Malicious PDF — malware analysis report

Static analysis result for SHA-256 52943fdd7cebc4fb…

MALICIOUS

PDF

34.8 KB Created: 2021-07-06 06:26:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 310219bf2516766be31865cff8aa3e84 SHA-1: bc55ba91ec01f65068c3942e0d637e9276bb210f SHA-256: 52943fdd7cebc4fb4f82d6a43bc4118036f8ecb85a01b729ded1e231e047b33a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a link that redirects to a URL associated with game hacks, a common lure for malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The document body, though partially garbled, contains references to game hacks and the malicious URL, reinforcing the lure-based attack pattern.

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/479516143/xray-mod-minecraft-114-game-hack PDF link annotation
    • http://lib.stiesultanagung.ac.id/repository/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/pokemon-go-free-things_GM1094591345.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/robux-codes_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/robux-free-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-shards-shard-seekers-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-sprite-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/comment-hacker-roblox-mad-city_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/roblox-hack-cunter-blox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/roblox-hack-scripts-lua_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/buxblast-com-robux_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/website-that-gives-you-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-robux-hack-for-2021_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_off00003295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3295 22288 bytes
SHA-256: 0d665aba13582eed2e28ede853aa30b278756545d7d182084f8fa437d0579f94
font_01_sfnt_off000063cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CF 18748 bytes
SHA-256: 5b442dcc3f3349fc6fd674a71fa96c6a55f9280713babfbda9777be484e1b5e5

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