Malicious PDF — malware analysis report

Static analysis result for SHA-256 0416c1a6fb27a218…

MALICIOUS

PDF

39.8 KB Created: 2020-08-21 07:37:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fd9b0817e6d974b08a4b45cde776f247 SHA-1: e96a1e36068b6a025adc7d9d56f4c8e7b1437e43 SHA-256: 0416c1a6fb27a2181a441a2fd10c2d8146d27c6b762f62c8d303b644546880a6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body and heuristics indicate a link farm strategy, likely to phish for credentials or distribute further malware. No scripts were extracted, but the presence of malicious redirector links strongly suggests a malicious intent to redirect the user to a harmful site.

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=b+a+m+s+long+form+marathi In PDF document text
    • http://torezo.gloriazachgo.com/uploads/1/3/0/7/130776021/1ba9ab6a8fb.pdfIn PDF document text
    • http://nowozikux.totsandco.org/uploads/1/3/1/3/131384709/xobijatasozev_lagig_tujorol_puriwa.pdfIn PDF document text
    • http://files.brightyellowministries.com/uploads/1/3/0/9/130969573/1564683.pdfIn PDF document text
    • http://pifojepen.platnymscloset.com/uploads/1/3/1/4/131438003/4506738.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/1/0429/3237/1622/files/74654318431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5621/2640/files/carcinomatosis_peritoneal_causas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3377/8597/files/mekonuredupitud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/tivutalojilapoxupukosafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8860/0478/files/94101459214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8922/9979/files/lung_abscess_bts_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/callan_method_book_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/simple_java_projects_with_source_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9229/3272/files/libro_bacteriologia_clinica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1591/files/obras_de_brazao_mazula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0631/5943/files/20229315009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4880/3227/files/bloomberg_businessweek_magazine.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 1

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_off00005e67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E67 5232 bytes
SHA-256: 50198cd28e35659949d93f9837c8af9d8d7f16735891526d0ea0741290bbcb69
font_01_sfnt_off00007004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7004 10176 bytes
SHA-256: f90547ee44851fa4c202a6705d000ab854f222de9108513550b8d8164e70c407

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