Malicious PDF — malware analysis report

Static analysis result for SHA-256 29667cf6b34662ef…

MALICIOUS

PDF

41.6 KB Created: 2020-08-08 02:36:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40bc90362309e60a077e06b6dd54e939 SHA-1: 63ea093032c92ac7c792b445ac6bc09c044088c6 SHA-256: 29667cf6b34662efa51fcaf837ce39471e8e1d8637cfbc1988601f2de3dbe97d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=exercices+accord+participe+pass%25C3%25A9+avec+avoir+pdf'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to the same URL and other Shopify links, suggesting a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the presence of a malicious redirector is a strong indicator of a phishing or malware distribution attempt.

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=exercices+accord+participe+pass%25C3%25A9+avec+avoir+pdf
    • http://files.rollingoakdoodles.com/uploads/1/3/1/3/131384573/fesemaritu_mutapiwimason.pdf
    • http://gazesir.friesenfruits.com/uploads/1/3/1/4/131437987/vorurojovemud_wegagejoruk_rozelulo.pdf
    • http://files.allycole.com/uploads/1/3/0/7/130740496/b79ff.pdf
    • http://files.migrocers.com/uploads/1/3/1/6/131607522/xapitukamozorus.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/2275697255.pdf
    • https://cdn.shopify.com/s/files/1/0432/4117/7252/files/gegarovikizaxipaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/2597/2904/files/wusugu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9252/3675/files/el_camino_del_artista_completo.pdf
    • https://cdn.shopify.com/s/files/1/0436/4900/7769/files/blasphemy_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/7704/2325/files/79087466851.pdf
    • https://cdn.shopify.com/s/files/1/0434/1969/7303/files/premiere_pro_alternative.pdf
    • https://cdn.shopify.com/s/files/1/0435/5211/2803/files/90503055762.pdf
    • https://cdn.shopify.com/s/files/1/0429/8362/0767/files/cbse_class_12_computer_science_syllabus_2020_19.pdf
    • https://cdn.shopify.com/s/files/1/0437/4170/8437/files/23187731505.pdf
    • https://cdn.shopify.com/s/files/1/0437/5796/1374/files/list_of_2010s_anime.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/51232212356.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_off00005e7e.bin
f0edd230eb465e03bc8187acd75b1d14144d5b20f443bdb3cbf825d0a3fbe130
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7E 5344 bytes
font_01_sfnt_off00007089.bin
f333fef45973bd79a251c511835a773d920f69d3e4df30d61083a5307dee5bdb
pdf-font-stream PDF embedded font (sfnt) at offset 0x7089 12080 bytes