Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f794066a695dc52…

MALICIOUS

PDF

55.5 KB Created: 2020-08-05 07:28:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d25c1a21351e8d252a3894b7a466a6e7 SHA-1: 641e9bf3d5e2f6689cbd53dfe9dc993512171cb9 SHA-256: 7f794066a695dc523b1de86f4f617bd77f369540be9e50891f79ca3165fb9244
194 Risk Score

Malware Insights

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

The PDF contains a large number of links, many pointing to SEO-optimized redirectors, suggesting a link farm or phishing campaign. The primary redirector URL is "https://ttraff.ru/pify?keyword=wedding+blouse+designs+catalogue+2020+pdf", which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, indicating its central role in the lure. The ML classifier strongly supports the malicious verdict.

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=wedding+blouse+designs+catalogue+2020+pdf In PDF document text
    • http://files.finehusky.com/uploads/1/3/0/8/130813521/3099749.pdfIn PDF document text
    • http://files.heavensgardenrestored.com/uploads/1/3/0/9/130969129/7444924.pdfIn PDF document text
    • http://files.natureexperiencetours.com/uploads/1/3/1/4/131406736/kusuzinivimemapa.pdfIn PDF document text
    • http://files.myinnatehealth.co.za/uploads/1/3/1/3/131378791/bd4d3.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/1/0434/0383/7592/files/6526967850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/70355900834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5828/2152/files/embed_google_drive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4773/9811/files/99958465920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6871/0300/files/jubogugivisutupobenowevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2952/6690/files/beast_wars_episodes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6440/9764/files/kixurovawixuxati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0894/9402/files/country_code_316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tagesagebog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5287/5432/files/fazer_assinatura_digital_no.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/23509485571.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006384.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6384 9444 bytes
SHA-256: 2b666c6f693cb0bde8c9fd550273a98e31dcac8b48b1e91f9a80aefff28344ac
font_01_sfnt_off0000828f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x828F 5652 bytes
SHA-256: db13e180bbe37e722bbc027e606f4427b3524ad5bb3e66baf6cc93c7b437e391
font_02_sfnt_off000095f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95F4 10772 bytes
SHA-256: 4fa27c14f7cc1d9155754603916e117d224354675f3b55ddab3c0cd5041d872e
font_03_sfnt_off0000ba55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA55 16312 bytes
SHA-256: 028dbaa76d48ae99b02248bacea50134e27ed131f5dd39e25ac401de8961e19b