Malicious PDF — malware analysis report

Static analysis result for SHA-256 6712a4485e31612b…

MALICIOUS

PDF

40.6 KB Created: 2020-08-18 23:27:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8979f1ff7d69d4e03e7876a3f68c5c4f SHA-1: 425d1cbe3d23006a690077dae96d59e60747c076 SHA-256: 6712a4485e31612b589c576d7ac360bf6346cae25c801757e4be580d01fc6af4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links to external resources, masquerading as a vehicle owner's manual. The primary link, 'https://ttraff.ru/pify?keyword=2018+chevrolet+colorado+z71+owners+manual', is identified as a malicious redirector, indicating a phishing or scam attempt. The document's structure and embedded links suggest it is part of a link farm designed to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=2018+chevrolet+colorado+z71+owners+manual In PDF document text
    • http://files.sgbcpc.com/uploads/1/3/0/9/130969459/rosuzob_vopuvew_pefub.pdfIn PDF document text
    • http://files.dogoodstore.net/uploads/1/3/2/6/132681342/7860858.pdfIn PDF document text
    • http://files.allsaintsws.net/uploads/1/3/1/4/131407465/mawitoru.pdfIn PDF document text
    • http://files.karlrauphotography.com/uploads/1/3/1/3/131379362/7976983.pdfIn PDF document text
    • http://files.cl-projects-sound-design.com/uploads/1/3/0/9/130969614/sugukosunezalad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/3677/2261/files/32055640173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/fovotowifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4927/1975/files/asherman_sendromu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0958/8897/files/sikavunometumozun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5588/1121/files/jukako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2224/4246/files/linfoma_de_burkitt_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2961/1171/files/duluromofivofevopipegewem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/gorupebapikepukujisofefew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5555/4470/files/electronic_workbench_tutorial.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE7 5884 bytes
SHA-256: af152b5faa47c3949ad14d0baa7645d5b42cd6b6460ac039f983bb39651d0188
font_01_sfnt_off00006ede.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDE 10888 bytes
SHA-256: fff138588cf8afcf50e82b69d3cd8420f78eac7dc2a9aafd606f0050e0c029c1