Malicious PDF — malware analysis report

Static analysis result for SHA-256 6564e65c7c94687b…

MALICIOUS

PDF

43.9 KB Created: 2021-05-14 17:20:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 101ce18084354b5f15503ad618c9ed2c SHA-1: 42dc92708e9a18633e81d33ae951cde400d371b3 SHA-256: 6564e65c7c94687bfa897bfcb88f7c4e3dd680466a911ea5edf531a80851f299
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on offers for free game currency or hacks. One primary link, https://netcdn.xyz/app/431946152/free-robux-without-downloading-apps-game-hack, is identified as a malicious redirector. The document body and embedded URLs suggest a social engineering tactic to drive traffic to potentially malicious sites. No scripts were extracted, but the presence of multiple embedded URLs and the specific heuristic firings strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/free-robux-without-downloading-apps-game-hack In PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-online-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-daily-free-coins-link-today_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-robux-come_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://shoruq.sch.ae/userfiles/files/free-spin-and-coin-blogspot_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
stream_003_off00004892.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4892 26256 bytes
SHA-256: dbfbea90fa9197a2745b4b647574b52f527b6477247c160d6cfbd0338d2cd38a
font_01_sfnt_off0000846d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x846D 19876 bytes
SHA-256: 7dd9be13e4665f5a35086e4b23dd28e6d3ecc39135d95cb28b9ae9c86552181a

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