Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c9df937732b9abc…

MALICIOUS

PDF

43.9 KB Created: 2021-05-14 18:38:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c4c16b80f2b458b2ed4f975cbc8d2fe7 SHA-1: 246f3c4faa956d815dc6cc36df1655cb8be2f8df SHA-256: 0c9df937732b9abcbe5e1023d16c813607a42a8e50efae59c2917b8544f906cc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'free generator' and 'game hack' lures. The primary link, https://netcdn.xyz/app/431946152/games-on-roblox-that-give-you-free-robux-game-hack, is identified as a malicious redirector. The document body, though partially corrupted, contains similar URLs, reinforcing the malicious intent to redirect users to potentially harmful sites. No scripts were extracted, but the presence of multiple malicious links strongly indicates a phishing or malware distribution 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/games-on-roblox-that-give-you-free-robux-game-hack In PDF document text
    • http://verenacrow.at/images/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://verenacrow.at/images/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://verenacrow.at/images/free-robux-website_GM431946152.pdfIn PDF document text
    • http://verenacrow.at/images/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://verenacrow.at/images/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://verenacrow.at/images/robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://verenacrow.at/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://verenacrow.at/images/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/coin-master-generator-hack_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://verenacrow.at/images/free-spins-on-coin-master-link_GM406889139.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
font_00_sfnt_off000049cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49CF 26440 bytes
SHA-256: cdce363c57ed876e6a6d55ae8d0ab11aa05972c2a8e8eb696710245b2a644e28
font_01_sfnt_off00008677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8677 19240 bytes
SHA-256: 3009583106c638257969d16940e6b1d2d6c9c8cef99a9d3856a451b20885bf07

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