Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdb550a69eb52bfa…

MALICIOUS

PDF

42.4 KB Created: 2021-05-14 05:06:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d6a66d17f0143507e56697928ce47071 SHA-1: d8feab244689a3cf57d5fd1faf7c3f324c0e8c61 SHA-256: fdb550a69eb52bfab6b94325b68a866c502064cf3739702ea90aaecd1283a18e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which are part of a link farm designed to direct users to potentially malicious content related to game hacks and cheats. The document body explicitly mentions "Roblox Hack Download", reinforcing the lure. While no scripts were directly extracted, the PDF structure and embedded URIs strongly suggest an attempt to redirect users to malicious sites, likely for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/431946152/roblox-hack-download-game-hack
    • http://spentulib.com/search/repository/coin-master-free-cards-and-spin-link_GM406889139.pdf
    • http://spentulib.com/search//repository/websites-that-give-free-robux_GM431946152.pdf
    • http://spentulib.com/search/repository/free-robux-games-on-roblox_GM431946152.pdf
    • http://spentulib.com/search/repository/coin-master-hack-app-for-iphone_GM406889139.pdf
    • http://spentulib.com/search/repository/minecraft-auto-miner-hack_GM479516143.pdf
    • http://spentulib.com/search/repository/coin-master-free-spin-and-coin-link-today_GM406889139.pdf
    • http://spentulib.com/search/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • http://spentulib.com/search//repository/how-to-hack-and-get-free-robux_GM431946152.pdf
    • http://spentulib.com/search/repository/coin-master-free-spins-hack_GM406889139.pdf
    • http://spentulib.com/search/repository/roblox-free-robux-generator_GM431946152.pdf
    • http://spentulib.com/search//repository/free-spins-for-coin-master-game_GM406889139.pdf
    • http://spentulib.com/search/repository/roblox-com-free-robux_GM431946152.pdf
    • http://spentulib.com/search//repository/how-to-buy-robux-for-free_GM431946152.pdf
    • http://spentulib.com/search//repository/free-robux-generator-com-roblox-hack_GM431946152.pdf
    • http://spentulib.com/search/repository/free-robux-hacks-no-verification_GM431946152.pdf
    • http://spentulib.com/search//repository/free-robux-com-roblox_GM431946152.pdf
    • http://spentulib.com/search/repository/coin-master-unlimited-spins-apk-free-download_GM406889139.pdf
    • http://spentulib.com/search//repository/easy-robux-hack_GM431946152.pdf
    • http://spentulib.com/search/repository/spins-coin-master_GM406889139.pdf
    • http://spentulib.com/search/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048f0.bin
df5c8d88b9c8b94256d662e0bfe91d0465144197c1282b9f284b860ce6048414		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F0 24820 bytes
font_01_sfnt_off00008211.bin
777ecd9bf4cba19c66ac3b03e370a33bd01ed4cf882c145341853d771ac6f80e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8211 18688 bytes

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