Malicious PDF — malware analysis report

Static analysis result for SHA-256 e36a48f6b40ced24…

MALICIOUS

PDF

42.6 KB Created: 2021-05-16 07:32:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 76308e22689896a2ca967f3f442b8b5a SHA-1: 27143e27cad0ca1eb0821f557a7f6e61d8398602 SHA-256: e36a48f6b40ced24b82e7c2de6213e514b8fb60518d972576c80680c1b17c053
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of free game currency or hacks. The ML classifier strongly indicates maliciousness. The embedded URLs suggest a phishing or malware distribution campaign, likely initiated via spearphishing.

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/free-robux-codes-no-verification-game-hack In PDF document text
    • http://radoszyna.pl/images/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://radoszyna.pl/images/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://radoszyna.pl/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://radoszyna.pl/images/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://radoszyna.pl/images/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • http://radoszyna.pl/images/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
    • http://radoszyna.pl/images/roblox-but_GM431946152.pdfIn PDF document text
    • http://radoszyna.pl/images/make-robux_GM431946152.pdfIn PDF document text
    • http://radoszyna.pl/images/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • http://radoszyna.pl/images/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://radoszyna.pl/images/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • http://radoszyna.pl/images/robux-get-com_GM431946152.pdfIn PDF document text
    • http://radoszyna.pl/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://radoszyna.pl/images/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • http://radoszyna.pl/images/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://radoszyna.pl/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://radoszyna.pl/images/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://radoszyna.pl/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://radoszyna.pl/images/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://radoszyna.pl/images/roblox-2021-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_off000047ed.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47ED 25936 bytes
SHA-256: 3e0db9a39a3680b5f1965b3c66a1152671061181394b3c15a16347a720ca2207
font_01_sfnt_off000082ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82AC 18776 bytes
SHA-256: 1501cc25bcf8c3b3bf9df14f68216c1cc39cc5b0131e4343b63bafa21afb9c06

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