Malicious PDF — malware analysis report

Static analysis result for SHA-256 317b6f336141ee22…

MALICIOUS

PDF

34.0 KB Created: 2021-07-03 12:51:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5989baf4206f729b07989f509d5a05f1 SHA-1: c838ae68a720ca6eeca79dc8daa4c7bea19e37c6 SHA-256: 317b6f336141ee2204a7bd3b654b3cf22b649ae0b3f84ce08aa7dcda14d5c9f7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generators' or 'game hacks' for popular games. The primary lure URL is http://netcdn.tw/app/479516143/bad-minecraft-free-game-hack, which is designed to entice users into downloading further malicious content. The document's structure and embedded links strongly suggest a phishing or social engineering attack aimed at tricking users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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
  • 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/bad-minecraft-free-game-hack In PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/mcpe_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-phantom-forces-beta-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-lego-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-daily-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/earn-robux-com_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/hack-roblox-jailbreak-espaol_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/robux-hack-app-download_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-jailbreak-speed-hack-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/aim-hack-roblox-prison-royal_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-hack-the-piano-in-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/cheats-roblox-da-hood_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-hack-for-robux-no-verification_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_off00003127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3127 22388 bytes
SHA-256: d30474ed189871050279482b2084cf549cbfcd6de926a79f1ad09cfc06d8b0aa
font_01_sfnt_off00006224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6224 18248 bytes
SHA-256: 4aba1dd6cc01965d6b6215da11c039b33948f2b192d52beaea5b71c00603ea7c

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