Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c3fb68e46fe2782…

MALICIOUS

PDF

41.4 KB Created: 2021-05-17 12:20:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 80fe35d594f10060c272490c118e9470 SHA-1: 2c876ba890313f75ec23c1dcb99d42085db13a00 SHA-256: 0c3fb68e46fe2782682fd7ffd4c013c4a99f80089ceff85e072ace236c53268c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically `https://netcdn.xyz/app/406889139/online-hacking-tricks-coin-master-game-hack`. The document body and embedded URLs suggest a lure related to game hacks and free in-game currency, a common tactic for phishing or malware distribution. No scripts were extracted, but the presence of malicious redirectors and the lure content strongly indicate an intent to lead the user to a malicious site for further 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/online-hacking-tricks-coin-master-game-hack In PDF document text
    • http://alroglobal.com/images/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://alroglobal.com/images/coin-master-fan_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://alroglobal.com/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://alroglobal.com/images/como-descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://alroglobal.com/images/free-robux-live_GM431946152.pdfIn PDF document text
    • http://alroglobal.com/images/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://alroglobal.com/images/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • http://alroglobal.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://alroglobal.com/images/free-coin-master-spin-app_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_off00004757.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4757 24700 bytes
SHA-256: 167ea6561f6c1ed3b2bcd95c4f30a5513c562f80479c55f6d66f8c4aafbf1afb
font_01_sfnt_off00008021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8021 18080 bytes
SHA-256: fddd51b25eec04d12f4c4846d9d7e7a5b32d954661b82b54990f8bca79bb2a5a

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