Malicious PDF — malware analysis report

Static analysis result for SHA-256 365b50cb45972009…

MALICIOUS

PDF

41.7 KB Created: 2020-08-12 20:27:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fe4a856b6bda4362ce7e656c7681807 SHA-1: 771a480cf06d336d6acad9a30477ad2636e03423 SHA-256: 365b50cb4597200944277a71bd3c86bfe48fd769673ec3bc47ddafe128bdad0e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO spam campaign. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is likely the primary malicious destination. The document body, though partially corrupted, contains the title 'Pros and cons of globalisation pdf' and references wkhtmltopdf, indicating it was likely generated programmatically to host these 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.ru/pify?keyword=pros+and+cons+of+globalisation+pdf
    • http://vovika.aquitaliayachtsusa.com/uploads/1/3/0/8/130814328/8e42c.pdf
    • http://files.kettleandcanyon.com/uploads/1/3/0/8/130874683/levuga.pdf
    • http://burifin.mikesbrass.com/uploads/1/3/1/8/131857334/79596bd9df7203.pdf
    • http://gogizu.criminallawyermissouri.com/uploads/1/3/0/9/130969368/mosewokesipibuwusob.pdf
    • http://kanaxa.hellojessicaann.com/uploads/1/3/2/7/132740405/6cd7d52.pdf
    • https://cdn.shopify.com/s/files/1/0430/7392/9378/files/musolowo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6845/7122/files/puwuves.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9959313526.pdf
    • https://cdn.shopify.com/s/files/1/0428/3321/5654/files/kubota_l3901_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/2346/5628/files/kemapigej.pdf
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/71805850118.pdf
    • https://cdn.shopify.com/s/files/1/0438/0003/5485/files/kotozubejezixutixineporep.pdf
    • https://cdn.shopify.com/s/files/1/0436/5864/1561/files/17917472648.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/84227853663.pdf
    • https://cdn.shopify.com/s/files/1/0431/6427/0743/files/womozabuwinipa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/lomufepizegugoxirepawajor.pdf
    • https://cdn.shopify.com/s/files/1/0436/9353/9478/files/canon_ae_1_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rumifagekesodurelakalon.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_off00006376.bin
fd66f6e1aa8e8e0816f1c3320f663174c7b1e75d18574a005b6b4bfbc39dc63d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6376 5464 bytes
font_01_sfnt_off0000760d.bin
fb164158adc59ac1468d9616d380febfec29ef00bd1a6e7258d63b40afaf0c8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x760D 10504 bytes