Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fa420b08063f8af…

MALICIOUS

PDF

55.5 KB Created: 2020-08-08 22:21:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83b251be07ad1b2e697e0ddf5d9f1921 SHA-1: 627f83448327d56d3159c049e98403a979e7d0a9 SHA-256: 3fa420b08063f8af7d021170a471b54301dc081ae2fbf09d9d73f3fbf89c6a83
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to ttraff.com, which is a known malicious domain. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on Shopify but point to potentially 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.com/pify?keyword=attachment+styles+chart+pdf In PDF document text
    • http://files.chdequestrian.co.uk/uploads/1/3/2/6/132695472/4445575.pdfIn PDF document text
    • http://files.nydiamondcenter.com/uploads/1/3/2/7/132740281/10b9c.pdfIn PDF document text
    • http://vafux.warnersroadtrips.com/uploads/1/3/1/6/131636664/bibemizodej-tabugi-fosavitijowa.pdfIn PDF document text
    • http://files.perryyoungblood.com/uploads/1/3/2/8/132814958/0ea5aef1c75.pdfIn PDF document text
    • http://files.homemadenourishment.com/uploads/1/3/0/7/130739996/sabadufotefezi-foponuxuk.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/1/0436/0306/7044/files/lok_sabha_election_2020_date_in_up.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6599/files/nsfas_application_form_2020_download_dut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5100/5590/files/putikokalofaxavuxiwirabap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8956/6621/files/82770878751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1605/2126/files/ropotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/bhagavad_gita_livro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9010/8833/files/70750435418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7542/7735/files/mafusadoxaxulas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/29647549388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4529/8077/files/wufimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5917/3784/files/surah_al_baqarah_translation_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2617/6407/files/anemia_ferropenica_que_es.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 8

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_off00009af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF8 5484 bytes
SHA-256: 1a75eedcf4313d70e03fad8ec19d16538789241505083b73257e499136da2759
font_01_sfnt_off0000ad81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD81 10344 bytes
SHA-256: 90f94cc15d36d1a1db6ed848ff286c02ccc39da5b69674e0023bb237039be24b

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