Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fe217acb93e43c5…

MALICIOUS

PDF

41.9 KB Created: 2021-05-14 07:49:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2ee0a09e379d6917a9ffb35b1fcdb768 SHA-1: dfdfa9f18a8a1d9db4e8b79961bb2cbf926833cc SHA-256: 1fe217acb93e43c5d4b29ca65c0df3b299bca5cc74e2ca14bc5fbc7e2677a5db
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, disguised as a "Coin Master Card Hack". The document body, though heavily obfuscated, contains references to game hacks and generators, reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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/coin-master-card-hack-game-hack In PDF document text
    • http://geometraperiotto.it/images/free-robux-group_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/minecraft-pe-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://geometraperiotto.it/images/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://geometraperiotto.it/images/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://geometraperiotto.it/images/100-free-spins-coin-master_GM406889139.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_off00004873.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4873 25092 bytes
SHA-256: 36f9539ef1ced158ca000ece5d0015b672231c665cf7446a780ec765d35ce47d
font_01_sfnt_off00008277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8277 17888 bytes
SHA-256: 5efdab5adc2480a04776318c37b62879fa5095bdd48049ba40adaf7a695a074d

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