Malicious PDF — malware analysis report

Static analysis result for SHA-256 57865ff21b4743a3…

MALICIOUS

PDF

35.6 KB Created: 2020-04-08 09:05:05 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 58b482aa94e10924583cdd8abbc28c48 SHA-1: 595550d2320e5968a0cce53394a396c396504e22 SHA-256: 57865ff21b4743a3e9622dace57f9daf14b096fad5145e59275e4c0f19e45ecf
62 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to a critical heuristic firing for a 'PDF_SEO_LINK_FARM'. This indicates the document contains a large number of external links, likely designed to lure users to potentially malicious websites. The primary URLs identified are part of this link farm, suggesting a phishing or redirection scheme.

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://blacktreelofts.com/uploads/1/3/0/3/130323281/130323281.html#parrafos+de+introduccion+analogia
    • http://dyeus.com/uploads/1/3/0/2/130274032/fevefinuwudapa.pdf
    • http://yourtimelessevents.com/uploads/1/3/0/5/130539818/4b72bc1fe17e0.pdf
    • http://www.tarisolutions.com/uploads/1/3/0/6/130604009/degufaxotogi.pdf
    • http://geekpursuits.org/uploads/1/3/0/9/130969054/7477039.pdf
    • http://cathedralmountainknifeworks.com/uploads/1/3/0/7/130739235/wifowixed_jetovibivo_dopimuwubo_tagavaxojifesib.pdf
    • http://redlinexcavating.com/uploads/1/3/1/4/131407668/ff4c6c9c2.pdf
    • http://sdaccd.com/uploads/1/3/0/5/130588988/7831266.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_off00006243.bin
a8f5ee9ff5a24682531e25029deadae5e1e976c54a01a5a6195c1e12fd7c3e46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6243 8208 bytes

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