Malicious PDF — malware analysis report

Static analysis result for SHA-256 5621ae5d7c5a13ed…

MALICIOUS

PDF

38.9 KB Created: 2020-08-08 06:16:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 729462861a08c4b7d7de6a1fc242b6f2 SHA-1: 414f64e9760c79251b4a140b66ca4d0c9aa67f81 SHA-256: 5621ae5d7c5a13ed02decf1e83eebe30c92762548394bd29a108ed95400a11a7
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.ru. The document body also contains this URL, along with numerous other links to Shopify domains, suggesting a link farm or SEO poisoning attempt. The primary malicious URL is likely used to redirect users to a malicious site, potentially for phishing or malware delivery.

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.ru/pify?keyword=the+bedford+reader+13th+edition+pdf+free+download
    • http://files.ljcosmetics.com/uploads/1/3/1/6/131607522/namusix-naxekopawasudow-pemebisakolino.pdf
    • http://files.thewarriorsrosary.com/uploads/1/3/0/7/130739060/jatibuferixiv.pdf
    • http://files.drgnflybotanicals.com/uploads/1/3/1/4/131411024/7838156.pdf
    • https://cdn.shopify.com/s/files/1/0433/6815/3239/files/xenarijaxuzadirudiba.pdf
    • https://cdn.shopify.com/s/files/1/0431/3668/0098/files/tagope.pdf
    • https://cdn.shopify.com/s/files/1/0431/0089/7440/files/delowofawafezasawo.pdf
    • https://cdn.shopify.com/s/files/1/0432/9403/2025/files/sajajaxetesizajasupusara.pdf
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/pebipa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/bicc_cable_lugs_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0432/7574/7491/files/wastewater_management.pdf
    • https://cdn.shopify.com/s/files/1/0430/5331/8298/files/59428762857.pdf
    • https://cdn.shopify.com/s/files/1/0447/1750/6716/files/latin_american_revolution_summary.pdf
    • https://cdn.shopify.com/s/files/1/0438/1832/0034/files/22249021113.pdf
    • https://cdn.shopify.com/s/files/1/0432/3672/0808/files/50909230131.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pelezegagujagemubejapo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wunize.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_off000059ce.bin
9ea7c617f295ff18ff6ef9773b25f679a0e3a465e9059a6667028f6f633a22a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59CE 5348 bytes
font_01_sfnt_off00006c09.bin
4deb32814559a976c7f60b15cb12d6e4a4087188d75d74daaf3a9e0ffe28f1f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C09 10064 bytes

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