Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebb46e1eecdb6650…

MALICIOUS

PDF

48.9 KB Created: 2020-03-30 11:12:15 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 42bcd0d9861729a983d3adfff8021979 SHA-1: 521795b9358c90d27a6d49432c075140d76f02ae SHA-256: ebb46e1eecdb66503eae8876573f31fc04552283ca68d5cd766109edda6d2cc9
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains a reference to 'Teorema de bernoulli aplicaciones en la vida diaria' and includes numerous URLs pointing to PDF files on various domains. This suggests a link farm or SEO manipulation tactic, potentially used to distribute malicious content or improve search engine ranking for malicious sites.

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://nupelicanparty.org/uploads/1/3/0/6/130621487/130621487.html#teorema+de+bernoulli+aplicaciones+en+la+vida+diaria
    • http://campusatwestfield.com/uploads/1/3/0/6/130621205/gotakedebumos.pdf
    • http://buyfeliciaindfw.com/uploads/1/3/0/7/130775775/442528.pdf
    • http://hardwiredforempathy.com/uploads/1/3/0/5/130551083/zupakij.pdf
    • http://nordicwarriortraining.com/uploads/1/3/0/7/130776068/rivatarusedep_setenosavib.pdf
    • http://foxspring.org/uploads/1/3/0/9/130969110/sazutaperuji.pdf
    • http://slayedalteregos.com/uploads/1/3/0/8/130813649/6124007.pdf
    • http://gearrecruiting.com/uploads/1/3/0/7/130776487/zupadebe-mefevagapibalup-sibudazikoso.pdf
    • http://jessgibson.net/uploads/1/3/0/2/130272470/xufijamomonuwefud.pdf
    • http://orkerglobal.com/uploads/1/3/0/4/130476572/0a61a88c074ae.pdf
    • http://tainoworldorganization.com/uploads/1/3/0/3/130324191/5d23cab482b.pdf
    • http://bariatricmarketing.net/uploads/1/3/0/6/130621384/digutupodoza_lumajokiwigaf_gawitolo.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_off00009518.bin
7ee786fc69d6c128cef1d4515abb843adf3bc39de9c087848aa10ae5ab7e6d2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9518 8872 bytes

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