Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c6b0507d7ca9d0…

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 03:20:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ad224dbe9e8c50460844651dde4f3909 SHA-1: 2312f439188507baed5407e4398399542dc253cf SHA-256: 49c6b0507d7ca9d06f046c006a24b02b5a03da33865ff743636daa08674330a9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector at http://netcdn.tw/app/431946152/roblox-hack-com-game-hack. The document body and extracted URLs suggest a lure related to game hacks and free generators, likely intended to trick users into visiting malicious sites. No scripts were extracted, but the presence of malicious links and the overall theme indicate a phishing or scam attempt.

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/431946152/roblox-hack-com-game-hack In PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/how-to-acually-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/roblox-generator-com_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/free-roblox-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/how-to-get-free-vip-on-roblox-top-model_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/is-it-still-possible-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnsamarinda.sch.id/__statics/gudangsoal/files/coin-master-free-generator_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_off00003380.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3380 22000 bytes
SHA-256: c1d779924e651575b222b41d63d432034004f8b46f17a8bf5792bce056d33ad2
font_01_sfnt_off0000642e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642E 18916 bytes
SHA-256: 6d04b5b4db5b45e378875975e26f0e3af663697016fd07aaaf83c18ceb43a6ca

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