Malicious PDF — malware analysis report

Static analysis result for SHA-256 2018d5760d6a26ba…

MALICIOUS

PDF

42.3 KB Created: 2021-05-15 06:50:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bff6459c3818d0b6264d1a2004c15c71 SHA-1: a0067468c3a1ad92f6aa92f67dcce799730cf3a2 SHA-256: 2018d5760d6a26baa419ae7f8ae2d48c33840508ade752dd7d8153c67199d2b8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, including one identified as a malicious redirector pointing to a 'free generator / game hack' lure. The document body, though partially corrupted, also contains references to game hacks and a URL. The presence of multiple redirector links and the ML classification strongly indicate malicious intent, likely to lead the user to a site that hosts further malicious content or exploits.

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/free-coins-coin-master-haktuts-game-hack In PDF document text
    • http://geometraperiotto.it/images/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/free-spin-links-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/mcpe-116_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/minecraft-hacked-client_GM479516143.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
font_00_sfnt_off00004b0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B0F 24816 bytes
SHA-256: 2975b3800faff7d59723613b5700955e489c9469a2be2b7a33e498ed0d0fa68d
font_01_sfnt_off000083f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F0 18020 bytes
SHA-256: 885405c0f3c82632f67cbbf76e9de88f1d1af146284216a58ab90767d16be517