Malicious PDF — malware analysis report

Static analysis result for SHA-256 f97fa7364a4f7939…

MALICIOUS

PDF

33.5 KB Created: 2022-12-18 18:13:32 +00:00 Authoring application: kaylhay (via mPDF 8.1.2) First seen: 2023-12-10
MD5: 6296144625a449f12a32e3e503a19979 SHA-1: 084cd4879ecea61cb363bc4d370c2a33620279bd SHA-256: f97fa7364a4f7939017de74eba2433cf88e0df88fe6abb373365f16a6f48f8b2
112 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0027

Heuristics 5

  • Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
    PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
  • PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
    PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
  • 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 http://esecuritys.com/aviva.bets.creamy.logoed?morro=preeminence&cG9vdmVsbGFtIHVuIHZhYXNhbSB0YW1pbCBtb3ZpZSBmcmVlIDM1cG9=ZG93bmxvYWR8NEFhTm1jMlpYeDhNVFkzTVRJMk5qRTVOM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation
    • https://trackasaur.com/wp-content/uploads/2022/12/hamehan.pdfIn PDF document text
    • https://www.tripsandtrade.com/wp-content/uploads/2022/12/Avast_Crack_CRACKED_2050_Zenix_Password.pdfIn PDF document text
    • http://prettytechnews.com/?p=34922In PDF document text
    • https://cafevalentustienda.com/wp-content/uploads/2022/12/heckjaid.pdfIn PDF document text
    • http://ooouptp.ru/ufc-undisputed-3-pc-crack-skidrow-470-link-128193/In PDF document text
    • https://www.tripsandtrade.com/wp-content/uploads/2022/12/Avast_Crack_CRACKED_2050_Zenix_PaIn PDF document text
    • http://esecuritys.com/aviva.bets.creamy.logoed?morro=preeminence&cg9vdmvsbgftihvuihzhyxnhbsb0yw1pbcbtb3zpzsbmcmvlidm1cg9=zg93bmxvywr8nefhtm1jmlpyedhnvfkztvrjmk5qrtvom3g4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn PDF document text
    • http://dejavu.sourceforge.netIn extracted file (stream_004_off0000203c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_004_off0000203c.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000203c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x203C 19780 bytes
SHA-256: 4fa1e1f62893db1504b694ba157ca733dbc9a64fe6775bec7c5c9e8d41f3a745
font_01_sfnt_off000053ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53EF 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8

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