Malicious PDF — malware analysis report

Static analysis result for SHA-256 486be2d7264b8754…

MALICIOUS

PDF

32.2 KB Created: 2020-08-18 16:41:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b3c0388f9b860a1ecf3939ed5ff8964 SHA-1: d02bafb68b2fdbd5c552f9a25de1ee039c8c5560 SHA-256: 486be2d7264b875413af9f59327c8dda69fc2038565ee062d45e9883f70361c9
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of embedded links, a technique often used to create link farms for SEO manipulation or to redirect users to malicious sites. The primary redirector URL, 'https://ttraff.ru/pify?keyword=chele+amar+mosto+boro+song', is flagged as malicious. The document body contains a mix of seemingly random characters and some embedded URLs, further supporting the 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.ru/pify?keyword=chele+amar+mosto+boro+song
    • http://wedizilud.rtmb.org/uploads/1/3/1/8/131871721/4633867.pdf
    • http://files.uniquegraphicdesignz.com/uploads/1/3/0/9/130969352/katojedaruvufajer.pdf
    • http://xamifep.2000tractor.com/uploads/1/3/1/8/131871453/wolela-lonezivate.pdf
    • https://cdn.shopify.com/s/files/1/0427/8134/3903/files/zoraxejoviluvezi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5137558887.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/kopazilibutizasofazetuw.pdf
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/36629818415.pdf
    • https://cdn.shopify.com/s/files/1/0435/8445/4817/files/biruk.pdf
    • https://cdn.shopify.com/s/files/1/0427/8353/9366/files/40623733854.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1271/files/36905300846.pdf
    • https://cdn.shopify.com/s/files/1/0447/8858/0512/files/lopirasarudix.pdf
    • https://cdn.shopify.com/s/files/1/0438/4030/7362/files/xulabowafavi.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_off000043a8.bin
48d51fb23309649cd249be3e0b8bf03fda522fe946084f026c55b38f816844ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43A8 5144 bytes
font_01_sfnt_off000054fc.bin
cbb0426a5ed1ea05a529267769b02289fa871d39c651b03d52768d61e2dfb7dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54FC 9240 bytes

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