Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84295aea7650f58…

MALICIOUS

PDF

45.1 KB Created: 2021-05-16 06:24:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 55d55ef707a14033bcd9a8322577017b SHA-1: d9978baedec73f9a4d19a4dfa7ab7bacea62af1f SHA-256: f84295aea7650f589778c9e4b73d26e249c60382fee8b3cb9afb296e81f7d8f8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector pointing to 'https://netcdn.xyz/app/406889139/free-spins-link-in-coin-master-2021-game-hack'. This lure is designed to trick users into believing they are accessing a game hack or generator. The presence of numerous other PDF links hosted on santjoandelesabadesses.cat suggests a broader campaign. No scripts were extracted, but the document's structure and embedded links strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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/free-spins-link-in-coin-master-2021-game-hack In PDF document text
    • http://santjoandelesabadesses.cat/images/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/rbx-earn_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/get-gold-coin-master-village-hack_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/coin-master-gift-hack_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/coin-master-free-spin-sites_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004930.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4930 25544 bytes
SHA-256: 29c350afa4da1f8baf4d2bcb55a10a70d34a47e54c80b756ae8059cd293af061
font_01_sfnt_off0000830f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x830F 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008cfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFA 18456 bytes
SHA-256: 8f5be0faf1f43547a4f613946690c49555a623d75ecb5c591eda2449b2cabce1

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