Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7c8753245081c59…

MALICIOUS

PDF

44.0 KB Created: 2020-04-10 23:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 781293056c5b0aab34e67e274796bcd7 SHA-1: 62ecc1fedea2ad882c86f674b99fd894128e4120 SHA-256: f7c8753245081c593f1b07a2cef5d1d17524adf628f27f6161e6e190b492d662
62 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body text is heavily obfuscated and appears to be a lure, with the primary function being to redirect users to numerous external URLs. The embedded URLs are likely part of a link farm or a mechanism to distribute 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://seastar.websalve.com/uploads/1/3/0/4/130483265/130483265.html#prologo+ejemplo+de+antologia
    • http://cruiserimports.com/uploads/1/3/0/2/130289333/17af4ec451eb49.pdf
    • http://banjodog.com/uploads/1/3/0/6/130620579/2306035.pdf
    • http://unswcc.com/uploads/1/3/0/3/130313123/5f334.pdf
    • http://theroyalway.org/uploads/1/3/1/4/131452811/resumebelav-posigigelomux.pdf
    • http://pinkhamcorner.com/uploads/1/3/0/3/130313494/f416e406cf155.pdf
    • http://ssbasketball.com/uploads/1/3/1/4/131437544/0f9f060326305.pdf
    • http://vixeneyelashes.com/uploads/1/3/0/8/130813054/25d173050efd.pdf
    • http://lansingweddingdjs.com/uploads/1/3/0/4/130476917/lobanosujoxupiv_tinikinuni.pdf
    • http://4charities.ca/uploads/1/3/1/4/131437100/gekexipa.pdf
    • http://donnarandel.com/uploads/1/3/0/5/130539022/narab.pdf
    • http://unswcc.com/uploads/1/3/0/3/130
    • 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_off00008455.bin
b9463c18301d3516dae025263fb094166d31c36065a077c6c97d11d4e742afaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8455 8860 bytes

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