Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2480ac4574b3d78…

MALICIOUS

PDF

40.1 KB Created: 2020-08-21 01:08:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 537bbef5c7dc974e2ad8ec020c31d4a7 SHA-1: b023a7f8631927cd6d52363924acabc86237f7e5 SHA-256: d2480ac4574b3d78a69b0e83bcb6536e8c47ddeb46a3116af242c490dbb335f3
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, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=aggregator+transformation+sorted+input'. While many other links point to benign Shopify domains, the presence of the redirector and the sheer volume of links suggest a malicious intent to lure users to a harmful destination.

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/pify?keyword=aggregator+transformation+sorted+input
    • http://files.marcellusoutreachbutler.org/uploads/1/3/1/6/131637150/datusokij_wexiruwaxufobu_xarobunope.pdf
    • http://files.ogologo.ca/uploads/1/3/1/3/131398385/nunagikaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/7361/8599/files/72787289870.pdf
    • https://cdn.shopify.com/s/files/1/0431/8851/9074/files/futofovijifivutazumot.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdf
    • https://cdn.shopify.com/s/files/1/0431/2550/6208/files/bemetovevazezif.pdf
    • https://cdn.shopify.com/s/files/1/0432/4874/6651/files/pyxis_medstation_es_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/7007/0687/files/navcomp_form_3065.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/69732527271.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/87764340072.pdf
    • https://cdn.shopify.com/s/files/1/0437/5478/2869/files/manufacturing_process_of_activated_carbon_from_coconut_shell.pdf
    • https://cdn.shopify.com/s/files/1/0428/3616/4774/files/love_dare_for_parents.pdf
    • https://cdn.shopify.com/s/files/1/0437/7640/9751/files/brisure_spontane_de_symtrie.pdf
    • https://cdn.shopify.com/s/files/1/0460/1964/1503/files/munavaxuxud.pdf
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/after_livro_5_baixar.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_off00005f99.bin
59aaa6361ca64dba691cdfa6671cb54370417c1d58328bd192a8add3c28d0cb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F99 5320 bytes
font_01_sfnt_off00007195.bin
401599548552a876ae5d193cbda23e6d48d2dc319830ba029ebb811d8a682f64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7195 10060 bytes

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