Malicious PDF — malware analysis report

Static analysis result for SHA-256 a24bc05ccf0a3d3b…

MALICIOUS

PDF

34.0 KB Created: 2021-06-30 06:53:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0830c18358475ff1ffd7ad0b936786e3 SHA-1: 13dccd7e16971d424ed8f9cbac14758cd7bd898a SHA-256: a24bc05ccf0a3d3beb44c67d05267082dfeac1d1088bfeef5bc2b0634d905ba3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure, that promise game hacks and generators. The document body explicitly mentions 'how-are-people-able-to-hack-roblox' and includes a URL that appears to be part of a lure for such content. The presence of embedded URLs and the malicious redirector link strongly suggest a phishing or scam attempt designed to lead users to potentially harmful 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.co/app/431946152/how-are-people-able-to-hack-roblox-game-hack In PDF document text
    • https://jas8.com.tw/image/data/files/toolbox-mod_GM479516143.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/how-to-hack-in-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/how-to-get-the-snowman-package-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/avatar-de-roblox_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/app-free-robux_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/hack-para-tener-robux-en-roblox_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/is-free-robux-possible_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/body-building-roblox-weightlifting-hack_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/how-to-open-cheat-engine-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/free-robux-just-click_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/how-do-you-get-free-robux-on-survey_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • https://jas8.com.tw/image/data/files/coin-master-pro-hack_GM406889139.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_off00002df6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DF6 22288 bytes
SHA-256: 894d333fc7c8683b92aca00d0aa6fbb5bf3499d45f01f06874ad78acad51e14a
font_01_sfnt_off00005f8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8C 19148 bytes
SHA-256: 55c76fdbbe93e8eab1bc312cf125c7e8ce8aa1052cab77fdf08b7314db18b9b2

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