Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc85ac5367aea44…

MALICIOUS

PDF

41.1 KB Created: 2021-05-15 14:06:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ff7e53a9f343f23ca127111c8c70345e SHA-1: 2e4e1aa55440dc7eca988f618f0723b9f3f2aec6 SHA-256: 5cc85ac5367aea4447312be549df29dde57c5ebb4fe3d036742730c0a8e10efc
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF links, suggesting a link farm designed to attract users searching for game cheats or hacks. The presence of a download button lure and the ML classifier's high confidence score further indicate malicious intent. The document body itself contains obfuscated text and URLs related to game hacks, reinforcing the lure.

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/406889139/coin-master-hack-pc-cheat-engine-game-hack
    • http://leagueforwomenrights.gr/images/robux-com-free_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/free-robux-easy_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/moonactive-coin-master-free-spins_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/how-many-levels-in-coin-master_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/free-spins-coin-master-ios-2021_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/youtube-how-to-get-free-robux_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/free-robux-offers_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/twitter-coin-master-free-spins_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/classic-minecraft-net-hacks_GM479516143.pdf
    • http://leagueforwomenrights.gr/images/free-roblox-hair-boy_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/coin-master-hack-without-verification-2021_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/how-to-get-free-robux-hack_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/free-gold-cards-coin-master_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/free-robux-websites-that-actually-work_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/minecraft-apk-free-download_GM479516143.pdf
    • http://leagueforwomenrights.gr/images/can-you-get-robux-for-free_GM431946152.pdf
    • http://leagueforwomenrights.gr/images/coin-master-daily-spin-link-app_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/free-spins-and-coins-on-coin-master_GM406889139.pdf
    • http://leagueforwomenrights.gr/images/free-modded-minecraft-server-hosting_GM479516143.pdf
    • http://leagueforwomenrights.gr/images/coin-master-coins-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004840.bin
214f112ed66d309481875f4427698217c0166c1756cd705f07eebdb9d583fa4d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4840 23736 bytes
font_01_sfnt_off00007e26.bin
202cff6cc62c8c60a51a1665bd3df642db17a3e84dc9a164b45f2764f23edef7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E26 18324 bytes

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