Malicious PDF — malware analysis report

Static analysis result for SHA-256 576d11e9684ad029…

MALICIOUS

PDF

45.5 KB Created: 2020-08-07 00:39:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e6af7983841087755475a856afd3a8d SHA-1: 43a111d6bc4c9fb9188ba6466b89692686869861 SHA-256: 576d11e9684ad02946f07c5e99a978eaec2d00d3aa3274ad7f8852322c7e5f39
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to shopify.com, but one critical link directs to a known malicious redirector at ttraff.cc. This suggests the document is part of a link farm or SEO poisoning campaign, designed to lure users to malicious sites. The presence of the malicious redirector URL is the primary indicator of malicious intent.

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.cc/wb?keyword=reforma%20laboral%202019%20pdf%20dof
    • http://files.evergreentrackingdogclub.org/uploads/1/3/2/6/132695575/04418dcfb4f4.pdf
    • http://files.tiffanywhalen.com/uploads/1/3/0/7/130775379/pizala_jovupobaweb_puvazaputixo.pdf
    • http://files.sayit.shop/uploads/1/3/1/0/131071114/penusasixiz_wimalozuj.pdf
    • https://cdn.shopify.com/s/files/1/0437/4154/4599/files/owl_city_galaxies.pdf
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/90603820161.pdf
    • https://cdn.shopify.com/s/files/1/0429/0487/9267/files/binubinifakivofubu.pdf
    • https://cdn.shopify.com/s/files/1/0430/2176/2723/files/pafufasuletobebodigerazo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4214/3389/files/kamevavojozusip.pdf
    • https://cdn.shopify.com/s/files/1/0430/1586/4473/files/ring_of_blades_ds2.pdf
    • https://cdn.shopify.com/s/files/1/0431/8973/1479/files/53563604973.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/united_artists_olympus_pointe_12.pdf
    • https://cdn.shopify.com/s/files/1/0436/1817/3086/files/accounting_intern_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0435/7029/9038/files/waxaxuzuriwen.pdf
    • https://cdn.shopify.com/s/files/1/0432/6601/5400/files/95750221860.pdf
    • https://cdn.shopify.com/s/files/1/0431/7193/8461/files/bofap.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_off00007195.bin
2c05d1e5bf7435961c66a274ef76f83e5e6f8509acd66cd949716411657c8b62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7195 5640 bytes
font_01_sfnt_off000084a9.bin
2161efd4e1803a6f5baf1e3cb4c34c70578632e687c35f2f77490676baf69bfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84A9 10784 bytes

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