Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee58f5d9c1c2e269…

MALICIOUS

PDF

38.0 KB Created: 2020-03-30 10:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4e651e20b11b58a002b42ddea43d4846 SHA-1: 87194534834a55dc41cc82fdda410658cbb9b64b SHA-256: ee58f5d9c1c2e269bdaa50f0016d65d1c81b00b4e543ba24b0818e9d2e246f96
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. These links point to various domains, suggesting a link farm or SEO spam operation. The document body contains a unit conversion phrase, likely a lure to make the document appear legitimate. No scripts were extracted from this sample.

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://webdisk.ladse.org/uploads/1/3/0/9/130969241/130969241.html#convertir+pa+a+libras+por+pulgada+cuadrada
    • http://mandmemporium.com/uploads/1/3/0/6/130621758/7967172.pdf
    • http://hostmaster.goingnative.eu/uploads/1/3/0/2/130287940/lajafep.pdf
    • http://weirdtickets.com/uploads/1/3/0/7/130739894/3086fc48.pdf
    • http://klineseminars.com/uploads/1/3/0/7/130738771/bikuzelunevagu_keropumobe_sesabusabe.pdf
    • http://officerethink.com/uploads/1/3/0/8/130874517/simuzo_xawekexebu_pixukibowo.pdf
    • http://omavalmentaja.com/uploads/1/3/0/6/130621852/c375fbd.pdf
    • http://caffiechang.com/uploads/1/3/0/5/130545429/4be1535d7037958.pdf
    • http://meter-key.com/uploads/1/3/0/2/130272360/pirelig_xakufomemopuza.pdf
    • http://appmarc.nl/uploads/1/3/0/3/130379078/6728331.pdf
    • http://moneytreerentacar.com/uploads/1/3/0/6/130604950/mofidarafemo.pdf
    • http://pollackmyballs.com/uploads/1/3/0/6/130639821/xaliv.pdf
    • http://pikespeakseniors.org/uploads/1/3/1/3/131380717/gakoremupe-gigojive-wuzetoxobufasi.pdf
    • http://mullentesting.com/uploads/1/3/0/6/130620642/kijezos.pdf
    • http://karibuinteriordesign.com/uploads/1/3/1/3/131379070/giraga.pdf
    • http://kidsanimalsplants.com/uploads/1/3/0/7/130739369/f6089.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_off00006804.bin
741e2f7067c5c8d89b9a68e2d6965de99e9e0c05e73101c9661ba12df8d42968		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6804 9068 bytes

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