Malicious PDF — malware analysis report

Static analysis result for SHA-256 92119fd56e2f00f3…

MALICIOUS

PDF

40.6 KB Created: 2020-09-06 07:26:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74f0eb4100df7a5fbb8eb02981fb2c92 SHA-1: fb59063be7f8a51ab9ab2f5c537b29921e292934 SHA-256: 92119fd56e2f00f3e3c520e6a015c7ce621e432f3ca37969c247c61fe6868928
120 Risk Score

Malware Insights

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

The PDF document was generated by wkhtmltopdf and contains a large number of embedded links. One critical heuristic identified a link to a known malicious redirector, while another flagged it as a PDF link farm. The document body contains text related to 'Definicion de calidad iso 9001 pdf' and includes the malicious redirector URL, suggesting a lure to a potentially malicious site. The numerous benign Shopify links likely serve to mask the malicious redirector within a larger set of links.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.link/pify?keyword=definicion+de+calidad+iso+9001+pdf
    • https://cdn.shopify.com/s/files/1/0433/1280/8091/files/webinigogikodufamiziva.pdf
    • https://cdn.shopify.com/s/files/1/0432/3006/8898/files/sizusevan.pdf
    • https://cdn.shopify.com/s/files/1/0437/4600/1045/files/armenians_in_prehistory.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0418/files/16837803264.pdf
    • https://static.usrfiles.com/ugd/02beb7_b8e7cc37b6f1464cb45bedee61c0bc1d.pdf
    • https://static.usrfiles.com/ugd/eddc50_165fc09a55984adbb477b1d11186678f.pdf
    • https://static.usrfiles.com/ugd/9df9d6_26b1cdfac7e54f038135d0d1535fb607.pdf
    • https://static.usrfiles.com/ugd/55f640_fa6f2c4bd2284729ad268d81ad90c435.pdf
    • https://static.usrfiles.com/ugd/a18aa6_26f41e8387d44b0e944ac05c01232bfb.pdf
    • https://static.usrfiles.com/ugd/76dd3d_a691d1d9f5e547c880308d2590a39a0a.pdf
    • https://static.usrfiles.com/ugd/b914b5_3ecd26c6aa0349339717ea9f53ccec71.pdf
    • https://static.usrfiles.com/ugd/b8c837_0ee62c131f8448449de202204ebdcb1c.pdf
    • https://static.usrfiles.com/ugd/921909_29b5590a1ace440d8a8360bd467a63ad.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e3c.bin
595480287e043045e4ccf215572f4d03ff65554991904489bdbf9d8fce0401be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3C 5404 bytes
font_01_sfnt_off000070ba.bin
b07443de8845c0d76f79fc7338f249e0e6ff01d0a3fc33b94d242c833056dfdb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70BA 10988 bytes

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