Malicious PDF — malware analysis report

Static analysis result for SHA-256 743742782961aa06…

MALICIOUS

PDF

51.5 KB Created: 2020-08-03 12:24:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58867ec03ac1403461dfc66ebc1cca19 SHA-1: 538319f766d45b3d37b7d3f702061e25a2494189 SHA-256: 743742782961aa06f13720f4edfcd5734a3eff99eb74c9d75ef11cea13fd5227
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The embedded URL points to 'ttraff.com', a known malicious redirector, which likely leads to a payload download or further phishing page. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the malicious intent.

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.com/pify?keyword=livro+admir%25C3%25A1vel+mundo+novo+em+pdf In PDF document text
    • http://files.ciccologroup.com/uploads/1/3/1/4/131408432/2faa0a43.pdfIn PDF document text
    • http://files.allycole.com/uploads/1/3/0/7/130739379/mukuxafelewabaj.pdfIn PDF document text
    • http://files.westsuffolkhomeed.org.uk/uploads/1/3/0/7/130739343/farowuxuja.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/1/0437/0428/7383/files/jalal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9032/files/71645744167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2064/6562/files/77529706663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/hunger_games_book_series_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1056/3994/files/6444041822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5638/0574/files/python_create_text_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1820/6887/files/chinese_identity_card_number_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/petsafe_wireless_pet_containment_system_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/18486528826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9255/7462/files/dewoxuxexetefetut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5281/7832/files/32012197539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5655/2343/files/86356302235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/55404894450.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000085c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C3 5244 bytes
SHA-256: 9a2a50dc6714c01f843ccb4369bdea1dbfdb91f1dbf1a3164bf81f1f2ac795ab
font_01_sfnt_off00009703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9703 13052 bytes
SHA-256: dbbb2c07bc5a69b15d29c7149eee6b0288776f9c4dd157ab929b903a6d462eeb

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