Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc0462ef66eee429…

MALICIOUS

PDF

41.6 KB Created: 2021-05-12 06:01:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 800ef9c26f382ec8d8e81d79e3fad9b8 SHA-1: 8d0bcd9ea82641ec70c6341020cb1a72f8ddb4c1 SHA-256: bc0462ef66eee429b2c06f4c5249f3cb1a534a90291829fac60b8ec771a83593
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links to a known malicious redirector, disguised with lures related to game hacks and free currency. The primary link directs to a URL associated with 'Coin Master Hack Mod Apk 2021 Download', indicating a social engineering attempt to trick users into visiting a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest a malicious redirector chain designed for user exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-hack-mod-apk-2021-download-game-hack In PDF document text
    • http://eurocomes.com/images/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://eurocomes.com/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/coin-master-daily-free-coins-link-today_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/install-coin-master_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/javascript-free-robux_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://eurocomes.com/images/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://eurocomes.com/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/coin-master-free-spin-and-coin-link-today_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_off00004603.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4603 25096 bytes
SHA-256: f80046791e4bbda7841441ceae488df4e4626ece639691340c09c1c3cc2015f4
font_01_sfnt_off00007e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E49 18876 bytes
SHA-256: d0ae2a6335f6e1d1dcb08c16f477cde67ff9a40c73b70c4521b3987adefa71de

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