Malicious PDF — malware analysis report

Static analysis result for SHA-256 d64e19b22da1bfe8…

MALICIOUS

PDF

42.9 KB Created: 2020-08-10 10:05:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 061d90afd15b75f32728fd42e862e49b SHA-1: 7893ee0bc20799e7c43cd3722c585866e6d99060 SHA-256: d64e19b22da1bfe8f9423c3c081b05718f0bfcf8a1394888810199f147fd8dd2
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is ttraff.com, which is likely used to funnel victims to further malicious content. The document body contains garbled text and embedded URLs, reinforcing the malicious nature of the file.

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/pify?keyword=anamnesis+kejang+demam+pdf
    • http://files.mariaburtonart.com/uploads/1/3/0/9/130969652/2cd2c399eea8b.pdf
    • http://files.linaleesewingco.com/uploads/1/3/2/3/132302810/7896341.pdf
    • http://nerox.wingateroadrunners.com/uploads/1/3/1/4/131454012/4e8134bf644.pdf
    • http://wawimasa.thegrillhousecompany.com/uploads/1/3/2/6/132682787/piwubuz_zirudiremumeb_melunezom_bizaxekum.pdf
    • https://cdn.shopify.com/s/files/1/0440/0034/6270/files/22921784160.pdf
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/52250443049.pdf
    • https://cdn.shopify.com/s/files/1/0436/5962/4606/files/rscit_registration_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/2476/9436/files/bexijitawikanapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/74018152627.pdf
    • https://cdn.shopify.com/s/files/1/0436/8941/0713/files/zuvifaxudemesixugosaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/89547545600.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/81003731711.pdf
    • https://cdn.shopify.com/s/files/1/0431/6102/6719/files/fazur.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_off000068e9.bin
dc665acde4bd0ab9cf87d7d8a5a8199e77635b72a8f06eedc53c25114e9dffe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68E9 5360 bytes
font_01_sfnt_off00007b2c.bin
e28f74238dd1d84fb9eadee22ab17f4f6e1678616be0cd50fd9558d20aff0198		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2C 10388 bytes

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