Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7ae607a7eef1cca…

MALICIOUS

PDF

33.9 KB Created: 2021-06-26 03:37:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: cde8c0ae91b78de7ed6300a2d409a4ed SHA-1: 53541597fd971f598ab0895b56c0530969f5bf60 SHA-256: e7ae607a7eef1cca0b67b541cb8043c4d0df1ebe9d64cf51dad6b15f0f7b468d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector, specifically advertising a "free generator / game hack" for Roblox. The document body explicitly contains the URL "http://netcdn.co/app/431946152/free-dominus-roblox-to-wear-game-hack", which is also flagged by heuristics as a malicious redirector. This indicates a phishing or scam attempt to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/free-dominus-roblox-to-wear-game-hack In PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/is-tiktok-free-on-app-store_GM835599320.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-roblox-mods-jailbreak_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/pubg-2021-uc-redeem-code_GM1330123889.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/get-free-spins-coin-master-october-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/clean-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-free-400-spin-link_GM406889139.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_off00002bb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB8 22644 bytes
SHA-256: 74d3b0ed72c266881caf17ac92c7e52da8cf91fa24cca16bcf68485a2d31cf36
font_01_sfnt_off00005e72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E72 19536 bytes
SHA-256: b45da71201f0d20b20084f918040213e619f9477852fd1c45f819df268d2d79f

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