Malicious PDF — malware analysis report

Static analysis result for SHA-256 55f06b26238e6cc9…

MALICIOUS

PDF

45.9 KB Created: 2021-05-15 15:22:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2f7c244665d39f5b2d59bb074deda41d SHA-1: 1a0c8c8d6d7d9ef1af8c28b24b9218aa2c9fb444 SHA-256: 55f06b26238e6cc95e99fffb249d35cbb183690d2d859706455077a90474a54b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector infrastructure, disguised as a "free generator / game hack". The document body, though partially obfuscated, contains text related to Minecraft and Roblox, 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 0.9432

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/479516143/minecraft-bedrock-free-with-java-game-hack In PDF document text
    • http://familymn.com/images/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://familymn.com/images/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/roblox-ftw_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/coin-and-spin_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://familymn.com/images/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://familymn.com/images/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/coinmaster_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/minecraft-bedrock-hacks-windows-10_GM479516143.pdfIn PDF document text
    • http://familymn.com/images/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • http://familymn.com/images/free-minecraft-com_GM479516143.pdfIn PDF document text
    • http://familymn.com/images/rbxoffers-earn-free-robux_GM431946152.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_off00004b06.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B06 25408 bytes
SHA-256: f0ea22f69b975f1a6407ca09519cef3cd3ff0a92f1aef665acfcf0eb5ea48b4b
font_01_sfnt_off000084ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84EF 2976 bytes
SHA-256: 728438c955c7ef21fefebeffafefc7055118b31603d74bb6d3e760c3558eafd3
font_02_sfnt_off00008f30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F30 18912 bytes
SHA-256: 4030f6649d0ebdd9f19ba86bdfab3d907e637ec7756e67114778b3c35e301262

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