Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c47ed91690e041d…

MALICIOUS

PDF

205.8 KB Created: 2021-07-05 12:09:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 1ff7d02b7a22ecdc71a4717334dc244c SHA-1: c3e059bd84cd9f163fe2fc6b61b73f54932dd742 SHA-256: 8c47ed91690e041d3d64bf2f94a65a3e62ee1161382111612d83c618a93f2545
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to a known malicious redirector, disguised as a 'free generator / game hack'. The primary lure URL is http://netcdn.tw/app/1094591345/pokemon-go-free-mewtwo-hack-game-hack. While no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or social engineering attack aimed at redirecting users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier clean score 0.2331

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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/1094591345/pokemon-go-free-mewtwo-hack-game-hack In PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-spins_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-adidas-clothes-roblox_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/inr-to-uc-pubg_GM1330123889.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/how-do-i-hack-roblox-game_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/how-do-you-earn-robux_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text

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