Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d32c02fdad726b2…

MALICIOUS

PDF

41.1 KB Created: 2020-04-07 13:51:55 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8d9138885471bbd614bb30b862b3b438 SHA-1: a2cd3a6fcbc99aad0af9beb9e60e941cb8007e45 SHA-256: 9d32c02fdad726b232731d82301ae6a0ea1c3dd56a0ccf5292fb43cbbe523555
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 to other PDF files hosted across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The document body itself contains garbled text and what appears to be metadata from the PDF creation tool, but the primary malicious activity is the mass of embedded URLs.

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://humannaturefoundation.com/uploads/1/3/0/8/130873944/130873944.html#caracteristicas+del+relato+de+aventuras
    • http://jennifersumptonphotography.org/uploads/1/3/0/4/130435888/0ee0ce932.pdf
    • http://matt-goad.com/uploads/1/3/0/7/130740517/nuvasedofu.pdf
    • http://propertypeninsula.com/uploads/1/3/0/7/130775337/4762535.pdf
    • http://nantcaw.co.uk/uploads/1/3/0/4/130483875/c9939b5db7af.pdf
    • http://integrityconcreteconstruction.com/uploads/1/3/0/2/130289623/powuvulug-lerif.pdf
    • http://assetservicesplus.com/uploads/1/3/0/3/130379447/ranobije_noboxaxijefoliz.pdf
    • http://cornerstoneauto.net/uploads/1/3/1/4/131407324/vawipurewilis.pdf
    • http://ardyslexiasupportgroup.org/uploads/1/3/1/4/131406843/32383.pdf
    • http://precisionpredatorproducts.com/uploads/1/3/0/6/130620251/5388175.pdf
    • http://carolynstierferrellclarksvillehistory.com/uploads/1/3/0/8/130874026/9375707.pdf
    • http://westerndentaljamaica.org/uploads/1/3/0/7/130776716/zetivaxiso_mofibi.pdf
    • http://appliance-installation.net/uploads/1/3/0/7/130775758/28f39120.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_off00007514.bin
9e66214a606bcbd791f15b27a96c71e9a22a5ff55feb52176c643bae909786c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7514 9016 bytes

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