Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f5a69073a47cf6f…

MALICIOUS

PDF

28.8 KB Created: 2020-05-18 05:47:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d5c6876b8d7b0f071b5f99ebe9e4f71 SHA-1: 338773407d04d11d7ce085c3a709e487a156a737 SHA-256: 4f5a69073a47cf6f5672d4e17c6c2c9353153f08bd4494f95d559856b4e53810
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body contains garbled text but also includes a URL that appears to be a lure for movie songs. The primary intent appears to be directing users to a network of websites, likely for SEO spam or to host further malicious content.

Heuristics 3

  • 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.
  • 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://become-1.com/uploads/1/3/1/3/131381259/131381259.html#kathi+sandai+movie+songs++starmusiq
    • http://villatale.cn/uploads/1/3/0/7/130775501/luzulatedej_pojusoxezer.pdf
    • http://taxfreeretirementvideo.com/uploads/1/3/0/2/130291712/komuwenisekox_nubiko_lelur.pdf
    • http://flattfivebluegrass.com/uploads/1/3/0/5/130539516/996c2c.pdf
    • http://radiobookclub.com/uploads/1/3/0/5/130543467/2629857.pdf
    • http://oxfordbaptistchapel.com/uploads/1/3/1/6/131607445/16339b7102d4.pdf
    • http://mastermonstersupershow.com/uploads/1/3/0/5/130552055/8260714.pdf
    • http://dein-tierfotograf-holstein.de/uploads/1/3/0/4/130477882/zurumebak-sunivarafo-bugefa-milovomod.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004738.bin
e202e5c001cf9017db190f8f4b3523adb5051177ddc1ac751aa50c0bedfbfd5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4738 9704 bytes

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