Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9e25811e3035691…

MALICIOUS

PDF

48.4 KB Created: 2021-05-12 06:32:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 45552f8d69e61f347f2586b3ec205d62 SHA-1: ff83390d64eb556d0918ff383b5a622c1fcab3ae SHA-256: a9e25811e303569171b5dce7f50c6603978bd2f25d2cb1cec155aeed2842ad5d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites that are identified as malicious redirectors, specifically luring users with promises of game hacks and free currency. The document body and embedded URLs suggest a phishing or scam attempt designed to lead users to potentially harmful content. No scripts were extracted, but the presence of malicious links and the lure indicate a high likelihood of a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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-facebook-hack-game-hack In PDF document text
    • http://perpus.polimarim.online/repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-daily-free-spins-link-today-2021-free_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/cheats-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-free-cards-hack_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_off00004a69.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A69 26748 bytes
SHA-256: 644f9dc61a3c71954f887c791bdc894e30a61bf580b0f805f38956725cf4e752
font_01_sfnt_off0000872d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872D 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_02_sfnt_off00009bb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BB8 18040 bytes
SHA-256: 061f1859a06f64f15b62312cec33f4d1ae20d2ec323f296e754baff4e0335bc5

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