Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2435e9c6f344bee…

MALICIOUS

PDF

43.7 KB Created: 2021-06-03 06:40:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b18d2bee047b2f8e2bc2517080b86aab SHA-1: b9587127f457b216f08b73038a31b0229af274a8 SHA-256: a2435e9c6f344bee5add1af68c7a63eefc4b2c7f0cb2e20c2b94faa907987ff7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free tokens' in Minecraft, directing users to a URL that is likely malicious. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a phishing or scam attempt. Although no scripts were directly extracted, the document's structure and embedded URLs suggest it's designed to lead users to a malicious site, potentially for credential harvesting or malware distribution.

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.online/app/479516143/how-to-get-free-tokens-in-minecraft-ps4-game-hack In PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/roblox-online-free_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/www-free-robux-com_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-robux-net_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-gold-cards-coin-master_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-hack-apk-35-8_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_004_off00004fb3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FB3 24816 bytes
SHA-256: d1ce87c4a90027c2342666e70046647289da64ec2592332bb912a490382c52cd
font_01_sfnt_off0000882e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x882E 18260 bytes
SHA-256: 6b17d904edba380b1c0a1521f110ced755ab41ddc916bfb976523684f5146024

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