Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dfae9d6b4038a5c…

MALICIOUS

PDF

38.2 KB Created: 2020-08-25 22:33:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: abcbe8307a7144ddbd2e7f9c9cf668b3 SHA-1: 2bc2c800a0180a541b60f629845a855a58b2e9b5 SHA-256: 7dfae9d6b4038a5c06fd924161bc36d661d552792f8dd6329700af24219f0688
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, including a critical redirector link to 'ttraff.cc', which is flagged as malicious. The document body, though obfuscated, contains references to the same redirector and a large number of other URLs, suggesting a link farm or SEO poisoning attempt. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this document is designed to redirect users to potentially harmful 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.cc/pify?keyword=dudley+moore+trio+jazz+in+oz In PDF document text
    • http://files.joymcdanieldance.net/uploads/1/3/1/3/131379443/kitajanaz.pdfIn PDF document text
    • http://files.theyogaschoolny.com/uploads/1/3/0/7/130775942/668541.pdfIn PDF document text
    • http://files.pepeandnixi.com/uploads/1/3/0/8/130813696/dinoborama.pdfIn PDF document text
    • http://dedes.vinesnkerr.com/uploads/1/3/1/4/131406082/3722419.pdfIn PDF document text
    • http://lagiw.fritzassociates.com/uploads/1/3/1/3/131398101/xafujixigef-gosusar.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/1/0428/9835/8432/files/71061356311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3545/0774/files/35711989856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1274/3580/files/75565667962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/65099726233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/45427513361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9479/3635/files/46621836075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5684/8282/files/vesawemonetenodufavik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19194700937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/1749/0847/files/36107252786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8234/2815/files/beatriz_sarlo_libros.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_off00005961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5961 5020 bytes
SHA-256: 3277d1cfa86ba5e408c83be1e492aeb0fbbf63b979bd63c103dc4734c99b6c39
font_01_sfnt_off00006a6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6A 9896 bytes
SHA-256: fb26fa61b0cdb2be15f4a830256a6ef2717fd98c35a5e75eea5e87a57fb2c050

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