Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c39814c36980720…

MALICIOUS

PDF

124.6 KB Created: 2020-06-06 03:16:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffbf4e2cbe4c30f671555df687fecc5f SHA-1: 294ac07c70501c793f5e921e40fb9f6b4caafa06 SHA-256: 2c39814c36980720f934513bcb4abcd1081695deaebd42e35f67b192113d2078
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body text, though partially corrupted, suggests a lure related to a 'Diccionario de filosofía', which is likely a pretext to encourage users to click on the embedded malicious links. The primary intent appears to be directing users to potentially malicious websites for phishing or malware distribution.

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://onelexusis250.com/uploads/1/3/1/4/131453175/131453175.html#diccionario+de+filosof%25C3%25ADa+ferrater+mora+tomo+1
    • http://lisuntimor.com/uploads/1/3/0/5/130540799/d279228e.pdf
    • http://bcbudmall.com/uploads/1/3/0/8/130813778/6565232.pdf
    • http://hostmaster.adrianacarbonell.com/uploads/1/3/0/5/130539074/botogoponurok-mopad-kosizan.pdf
    • http://hostmaster.localdab.com/uploads/1/3/1/4/131437107/badivonifer-tomefefelavoj-lodaxubuzim-jefila.pdf
    • http://seabirdbm.com/uploads/1/3/0/4/130476687/f9281.pdf
    • http://onelexusis250.com/uploads/1/3/1/4/131453175/terms.html
    • http://onelexusis250.com/uploads/1/3/1/4/131453175/dmca.html
    • http://onelexusis250.com/uploads/1/3/1/4/131453175/policy.html
    • https://revaxakel.files.wordpress.com/2020/06/tisinit.pdf
    • https://pekazad879287334.files.wordpress.com/2020/06/jesabolixiwosen.pdf
    • https://melixuv.files.wordpress.com/2020/06/44485686156.pdf
    • https://zokomijikupo.files.wordpress.com/2020/06/kolavixej.pdf
    • https://vemupuki.files.wordpress.com/2020/06/21373009198.pdf
    • https://samuwuv.files.wordpress.com/2020/06/pizajilaga.pdf
    • https://zixator.files.wordpress.com/2020/06/fegigove.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_off0001b93b.bin
8afbb6411a972c10a6e68c927c73268a170ee0b12580aea888fbd005bb7d4233		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B93B 14508 bytes

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