Malicious PDF — malware analysis report

Static analysis result for SHA-256 1263b405cbcac8bd…

MALICIOUS

PDF

42.8 KB Created: 2021-05-17 19:56:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ce59fbcd933f8fcc0573670f095a226a SHA-1: b8c8c2b280615eb1403c3d33ec5d5da77fc928a9 SHA-256: 1263b405cbcac8bda6decd017478cfd0729cbaea08274bb341a81644b40cd2f0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks. The embedded URLs, such as 'https://netcdn.xyz/app/431946152/hack-avatar-game-hack', are designed to lead users to potentially harmful content. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a malicious redirection attempt, likely intended to deliver a second-stage payload or phish for credentials.

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/431946152/hack-avatar-game-hack In PDF document text
    • http://scarlier.fr/images/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/free-roblox-wings_GM431946152.pdfIn PDF document text
    • http://scarlier.fr/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://scarlier.fr/images/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/coin-master-free-spin-download_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://scarlier.fr/images/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://scarlier.fr/images/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • http://scarlier.fr/images/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://scarlier.fr/images/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://scarlier.fr/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/coin-master-hack-spin-link_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://scarlier.fr/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://scarlier.fr/images/roblox-robux-hack_GM431946152.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_off00004948.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4948 26980 bytes
SHA-256: 37f5a0d3aea418c60bde4d0261b44934c4d3f4a809ef228f89d729fd4b6de42e
font_01_sfnt_off0000864b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x864B 17816 bytes
SHA-256: a332eb86fc08546e35ddfbdb6adf6799487b2798b585a4d63c532488cc1207d3

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