Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0a2a9c1e6e7f40f…

MALICIOUS

PDF

42.9 KB Created: 2021-05-15 00:44:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e86e8804528609fbf44bc7cf9d7da2da SHA-1: 2ad54b360233a9ea1b594f71dffd47d34000223c SHA-256: b0a2a9c1e6e7f40f32dd9cc25accf678e795a32a5c1c87a8b69d07c315166473
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The primary redirect URL is https://netcdn.xyz/app/406889139/coin-master-free-coins-and-spins-app-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt designed to lure users to potentially harmful websites.

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-free-coins-and-spins-app-game-hack In PDF document text
    • http://erntefest2016.de/images/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://erntefest2016.de/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://erntefest2016.de/images/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://erntefest2016.de/images/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://erntefest2016.de/images/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://erntefest2016.de/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://erntefest2016.de/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://erntefest2016.de/images/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://erntefest2016.de/images/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://erntefest2016.de/images/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://erntefest2016.de/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://erntefest2016.de/images/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://erntefest2016.de/images/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • http://erntefest2016.de/images/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://erntefest2016.de/images/coin-master-hack-android_GM406889139.pdfIn PDF document text
    • http://erntefest2016.de/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://erntefest2016.de/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://erntefest2016.de/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://erntefest2016.de/images/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • http://erntefest2016.de/images/real-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ada.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ADA 25708 bytes
SHA-256: e8712f56282e69633ae6cc8995a49c3738a771a27a96a2afc92641d51df6b1e7
font_01_sfnt_off000085ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85EF 18060 bytes
SHA-256: f77ee24e01944806ea28e16fd73427a54f7109e241804df06ce657d8c6d11cfb

Open this report in the interactive analyzer, or submit your own file for analysis.