Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0287530b45cbe35…

MALICIOUS

PDF

44.1 KB Created: 2021-06-09 14:58:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e64d186e254ba6e4de908ad7964d1d0d SHA-1: 26f80e52f5a9ad1dd9361b948f4e94d24e319bd5 SHA-256: e0287530b45cbe35de911462a1ffe04dcd901c93ce7c36d00464b61d9634109e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirector infrastructure, specifically targeting users with lures related to free game items and hacks. The ML classifier also flagged this document as malicious. The primary IOC is the redirector URL, which likely leads to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/free-roblox-jailbreak-games-game-hack In PDF document text
    • https://elite-house.su/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://elite-house.su/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://elite-house.su/images/make-free-robux_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/coin-master-free-500-spins-link_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/free-robux-reddit_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/code-free-robux_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • https://elite-house.su/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/roblox-superhero-tycoon-free-online_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/coin-master-free-spins-2021_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
font_00_sfnt_off00004dfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DFD 25360 bytes
SHA-256: ebd6bc6e263a65344fb4bc1d7d2617f311df6ad435073fb96833494b5f25ede0
font_01_sfnt_off000087eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87EB 18892 bytes
SHA-256: 3c001c353143eefa54114c0bd98ff6f58a0f0f45a3e4dac1c6c1319b725af874