Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eaeb134c40e44a5…

MALICIOUS

PDF

51.5 KB Created: 2020-07-28 18:33:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 727ae9839336f87f665feb81ff1443ae SHA-1: 07888ed198a7de5bd7d90304aca67adc79953b58 SHA-256: 2eaeb134c40e44a532f96c1c77793f32909ad7eb14ca3f5173a4ee155bbc782a
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a redirector service (ttraff.ru). This indicates a link farm attack designed to direct users to potentially malicious content. The document body, though heavily obfuscated, contains references to 'bootstrap navigation bar templates codepen', suggesting a lure to web development resources.

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=bootstrap+navigation+bar+templates+codepen
    • http://files.lairginitiative.co.uk/uploads/1/3/0/7/130776483/7099228.pdf
    • http://files.mountaintrafficcircle.com/uploads/1/3/0/8/130814208/fopigedilowi-zixajeni.pdf
    • http://files.natasharemi.com/uploads/1/3/0/7/130740193/ropiduw_kuvuxikomod_leroxo_tifajufudi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fisebupujavilugux.pdf
    • https://cdn.shopify.com/s/files/1/0430/7179/9449/files/zizizekajaz.pdf
    • https://cdn.shopify.com/s/files/1/0429/3387/8940/files/wojezut.pdf
    • https://cdn.shopify.com/s/files/1/0428/7106/2684/files/13997398048.pdf
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/nipuzome.pdf
    • https://cdn.shopify.com/s/files/1/0434/6403/2421/files/3785011775.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/96673597925.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/20947738305.pdf
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/20023934995.pdf
    • https://cdn.shopify.com/s/files/1/0431/6286/1730/files/bixagivololiposen.pdf
    • https://cdn.shopify.com/s/files/1/0437/6782/4533/files/mazivi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/1402853651.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/
    • https://cdn.shopify.com/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006945.bin
6ddf59f6fc436e16df6694a95fdba46ef7a9d4c31d4edaeb3f1d728e88994faf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6945 5428 bytes
font_01_sfnt_off00007b9f.bin
d858802e651511f2309a6922dbdcd56bb0b658cd1223b819fc0dfe8ba0f075d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9F 14304 bytes
font_02_sfnt_off0000a98b.bin
3afbc95f4a2677bf4c8b77bd7df62e4dbeb651db4b5e482cf97b58e472170d58		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA98B 16164 bytes

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