Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc5fc8488bda2836…

MALICIOUS

PDF

43.8 KB Created: 2021-05-16 03:28:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0cca76966bef15095151818359690b1c SHA-1: 50c579d545d6bcb48ee05223f7f6d42821f63a18 SHA-256: dc5fc8488bda2836c3f18e19f6d742f79545a65beb8b678977d4ec95417674bf
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many of which are related to game hacks and cheats, indicating a likely attempt to redirect users to malicious websites or engage in SEO spam. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious intent to lure users through deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-hacks-no-verification-game-hack
    • http://bagliomangiapane.com/images/coin-master-free-spin-links-december-30-2021_GM406889139.pdf
    • http://bagliomangiapane.com/images/free-minecraft-alt-generator_GM479516143.pdf
    • http://bagliomangiapane.com/images/free-coin-master-spins-2021-link_GM406889139.pdf
    • http://bagliomangiapane.com/images/hackear-coin-master-android_GM406889139.pdf
    • http://bagliomangiapane.com/images/free-spin-coin-master-ios_GM406889139.pdf
    • http://bagliomangiapane.com/images/coin-master-free-spins-hack-ios_GM406889139.pdf
    • http://bagliomangiapane.com/images/how-to-make-robux-on-roblox_GM431946152.pdf
    • http://bagliomangiapane.com/images/free-robux-working_GM431946152.pdf
    • http://bagliomangiapane.com/images/heroes-online-roblox_GM431946152.pdf
    • http://bagliomangiapane.com/images/coin-master-free-spins-link-download-free_GM406889139.pdf
    • http://bagliomangiapane.com/images/coinmaster-blogspot_GM406889139.pdf
    • http://bagliomangiapane.com/images/how-to-get-free-robux-on-iphone_GM431946152.pdf
    • http://bagliomangiapane.com/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdf
    • http://bagliomangiapane.com/images/roblox-promo-codes-free-robux_GM431946152.pdf
    • http://bagliomangiapane.com/images/how-to-hack-coin-master_GM406889139.pdf
    • http://bagliomangiapane.com/images/daily-coin-master-free-spin-apk_GM406889139.pdf
    • http://bagliomangiapane.com/images/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdf
    • http://bagliomangiapane.com/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
    • http://bagliomangiapane.com/images/roblox-hack-generator_GM431946152.pdf
    • http://bagliomangiapane.com/images/boku-no-roblox-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004880.bin
c92bc4124642aaf0ffdf63fe8ce34b04c573f7d11d71b5039d365945d7f6387c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4880 29220 bytes
font_01_sfnt_off00008a13.bin
31edcb062e0c4d358e7699eb17481b8bb2542c8a2ca42b35e989066c8723d51f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A13 17848 bytes

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