Malicious PDF — malware analysis report

Static analysis result for SHA-256 66666495c25f7d99…

MALICIOUS

PDF

49.0 KB Created: 2020-08-23 00:01:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a33e6f157a9942c546157230013c772d SHA-1: a5b07d2f6abb403fc7b7f00c1c44055a588b2e9e SHA-256: 66666495c25f7d991cde6372ff2d1f6db02fdf0b251d4d5750bb7fd105488352
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.com/pify?keyword=de+jogos+para+pc+via+mega', is identified as a redirector for a 'free download' lure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, likely for phishing or malware delivery.

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=de+jogos+para+pc+via+mega In PDF document text
    • http://panela.peterhendricksonarchitect.com/uploads/1/3/0/7/130738969/lulujes.pdfIn PDF document text
    • http://files.rebekahleach.com/uploads/1/3/1/6/131636792/a1fe399e7582903.pdfIn PDF document text
    • http://files.spaatthecolonnade.net/uploads/1/3/1/3/131380600/barike_gojebaj.pdfIn PDF document text
    • http://files.mlmcpherson.com/uploads/1/3/1/4/131438055/11dc304bfd77.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/1/0431/6472/9512/files/new_years_eve_2015_houston.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4684/4054/files/sudevezefakobomotesud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/feel_good_inc_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3953/8851/files/menage_a_twa_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2871/6439/files/7899629092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7979/8679/files/angle_of_depression_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6424/5925/files/hayward_pool_filter_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5321/2060/files/65667594020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2330/8712/files/wilategudix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/23987218048.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_off00007b35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B35 5356 bytes
SHA-256: 04ae95692e9d2b774b576d3036a3c33a4c669fc84a181fd407a7718303333bb9
font_01_sfnt_off00008d74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D74 13364 bytes
SHA-256: f62c60499f872a4b1c3a124c3b1ec94d2857d1589aa2a49fbbc97c10dddb723f

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