Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0df97ae627382e8…

MALICIOUS

PDF

42.8 KB Created: 2020-08-19 19:56:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71e5daef5b29dd0e8d3730c31413a3a7 SHA-1: ec399ad7b0ea7b74d842c655fbc842375b34c86d SHA-256: c0df97ae627382e898f80da120f92e7d81f76626a6f482d50bc8da6bca24b0a1
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 of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure via the URL https://ttraff.ru/pify?keyword=best+mulching+mower+consumer+reports. This suggests the document is designed to lure users to malicious sites, likely for phishing or to download further malware. No scripts were extracted from this sample.

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=best+mulching+mower+consumer+reports
    • http://xawumo.elizabethcyr.com/uploads/1/3/1/4/131453872/nogasasesesan-wezavukesipa.pdf
    • http://files.danjapolitis.com/uploads/1/3/2/6/132681144/646556.pdf
    • http://kuker.bernadettemccormack.com/uploads/1/3/1/8/131856195/xisusoziwirotenelas.pdf
    • http://xezera.aedclemson.org/uploads/1/3/1/4/131438640/zijezoduvik-jiroxidavedaxev-wamuxaxegazu-mivasefuja.pdf
    • http://files.pfmorgans.com/uploads/1/3/0/7/130775977/fadoku-lavetevosudew-radagumipalok.pdf
    • https://cdn.shopify.com/s/files/1/0431/3668/0098/files/jufulewarexiwolamu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8360/files/59908702447.pdf
    • https://cdn.shopify.com/s/files/1/0437/1018/5621/files/materi_batuan_metamorf.pdf
    • https://cdn.shopify.com/s/files/1/0438/5823/1461/files/asperger_s_rules.pdf
    • https://cdn.shopify.com/s/files/1/0432/5870/8118/files/gimopumazenoxufuvip.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/13704422431.pdf
    • https://cdn.shopify.com/s/files/1/0433/0654/9406/files/37671311021.pdf
    • https://cdn.shopify.com/s/files/1/0433/4885/2894/files/75785744542.pdf
    • https://cdn.shopify.com/s/files/1/0440/1460/0342/files/ziwazadezis.pdf
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/fijimabuxuminuridupifag.pdf
    • https://cdn.shopify.com/s/files/1/0439/3431/8760/files/lodovutudesolexe.pdf
    • https://cdn.shopify.com/s/files/1/0432/8685/5840/files/4856697606.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_off000068f2.bin
cb8c564e54ea1401983ab29acc4024de5b28ffe7090fdcd13e1a1cd5f00da6c6
pdf-font-stream PDF embedded font (sfnt) at offset 0x68F2 5276 bytes
font_01_sfnt_off00007ad8.bin
5beaf140cac9cb693da49196d357c1f2e7f39ab1c50e77d9e7aaeb59fb0e081a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD8 10808 bytes