Malicious PDF — malware analysis report

Static analysis result for SHA-256 581a8fa06b7dfc46…

MALICIOUS

PDF

44.6 KB Created: 2020-09-03 22:45:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 025c56a16bf4a3a4c1896d5b42ff85be SHA-1: 08e7e7af6e8527da40d6e9d404ece24b9f9c5878 SHA-256: 581a8fa06b7dfc46a4146398b33b3d3bd68793212fdfa2ea31cebd3bd5f849b0
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one pointing to a known malicious redirector. The document body is heavily obfuscated but contains a URL that matches the suspicious redirector. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic, potentially leading to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/wix?keyword=hadoop+certification+study+guide+pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/pipepelazudedanoto.pdf
    • https://cdn.shopify.com/s/files/1/0436/5628/2265/files/xutujiba.pdf
    • https://cdn.shopify.com/s/files/1/0438/5262/8118/files/rexoxomunokibuvo.pdf
    • https://cdn.shopify.com/s/files/1/0440/8829/5576/files/salewo.pdf
    • https://static.usrfiles.com/ugd/b8c837_663a55f8981a44bc82b73d35778bb442.pdf
    • https://static.usrfiles.com/ugd/b8c837_4306b17b841f49248798e313fbe1a54b.pdf
    • https://static.usrfiles.com/ugd/6350c7_809fee39dc5d43c38eb5ec31447cbdf3.pdf
    • https://static.usrfiles.com/ugd/aef5b7_b8eaed5dd76644ba853ab109a4586c7c.pdf
    • https://static.usrfiles.com/ugd/b8c837_c73b640a1b314033a10e4d1afbca21dc.pdf
    • https://static.usrfiles.com/ugd/b8c837_b47c0721ac234d118d943dcd9daec2fc.pdf
    • https://static.usrfiles.com/ugd/e1c37d_5031d1ac4f4d4e9abb3f23c3f091dd7a.pdf
    • https://cdn.shopify.com/s/files/1/0432/7112/7206/files/rawapupixigoxirizuta.pdf
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/zuniruxeremofivanebidoko.pdf
    • https://cdn.shopify.com/s/files/1/0437/9269/5458/files/98870975942.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/18570092296.pdf
    • https://cdn.shopify.com/s/files/1/0438/6612/8549/files/35085086627.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_off00006508.bin
749e244e74cdeea1b830f307fdccfce8f81101e69b2579a7b9585acb779e87a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6508 5352 bytes
font_01_sfnt_off00007757.bin
052ae242939fa44d74edd7e36e022601976eb718aea733ffff34979278ce8dda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7757 14920 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.