Malicious PDF — malware analysis report

Static analysis result for SHA-256 c08fdd1d0e79fd41…

MALICIOUS

PDF

23.8 KB Created: 2020-04-12 09:22:31 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c2cab0f8e98dcfada71f65e1964a144d SHA-1: f3c4dab81c371d0d1de1d5208edf53c5a4cfd0eb SHA-256: c08fdd1d0e79fd411620828c290600dd02f5c088436a485c2cfe112892b261a9
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to similarly structured URLs on different domains, indicating a link farm or SEO spam campaign. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the presence of numerous external links suggests the primary goal is to redirect users to potentially malicious content hosted on these external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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://mlle-esthetique.com/uploads/1/3/0/7/130775705/130775705.html#scientific+method+printable+worksheet
    • http://centurymillcreekfinancing.com/uploads/1/3/0/3/130379411/024329382a61.pdf
    • http://readysetflye.com/uploads/1/3/0/7/130738679/4856885.pdf
    • http://ghoxtpens.com/uploads/1/3/0/4/130488530/kaduk.pdf
    • http://filmone.ca/uploads/1/3/0/4/130436513/gajafuzirak_lobabet_vajulevegol_xedopir.pdf
    • http://fahnholzfamilycontracting.com/uploads/1/3/0/6/130621985/romulegub.pdf
    • http://coffsharbourroofing.com/uploads/1/3/0/6/130639516/wajojeposuv.pdf
    • http://suncityprides.org/uploads/1/3/0/6/130621555/8396608.pdf
    • http://doctorforconcrete.net/uploads/1/3/0/7/130739094/xuwan.pdf
    • http://turquoiseheartphotography.com/uploads/1/3/0/6/130621832/nikutanufojidi-bigova.pdf
    • http://cvillefamilyhistorycenter.org/uploads/1/3/0/5/130588723/donovafiduxiw-xonopasununafif-tiguximejikiw-foluvoka.pdf
    • http://picturesfromtheride.com/uploads/1/3/0/7/130738885/7594852.pdf
    • http://royalbromont.ca/uploads/1/3/0/7/130739028/tunezepagi.pdf
    • http://midwestasphaltandgravels.com/uploads/1/3/0/8/130874064/ba147495431e.pdf
    • http://employerscommittee.org/uploads/1/3/0/4/130477915/tanaj.pdf

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