Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7c434c7ae731703…

MALICIOUS

PDF

35.3 KB Created: 2020-08-27 21:28:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 47f63607d8b0fb404f27149958fdd80b SHA-1: 05986e8d92a50a108dd5f64ea08ca0a827a38782 SHA-256: a7c434c7ae7317038aa32279b1273d871ba6410f04d8872c9ae53df1fe4c52a2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing indicating it is a malicious redirector link, pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=cab+killeen+tx, which is the primary indicator of malicious intent. The file's purpose appears to be directing users to potentially harmful content through a network of links.

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=cab+killeen+tx In PDF document text
    • http://files.nevacochranrd.com/uploads/1/3/0/7/130739443/bebofemisobo.pdfIn PDF document text
    • http://files.tresjalapenos.com/uploads/1/3/2/8/132814220/2859742.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/1/0432/5693/8664/files/67951616029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/muzoguganava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jewepogepavab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3600/6817/files/36295687065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7674/7413/files/analogy_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7931/8166/files/daily_use_arabic_words_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1518/4290/files/calendarlabs_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1117/7629/files/248138192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/fazawede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/0647/6707/files/vetegigukosoxupaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4418/1928/files/23202720674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9121/3990/files/red_lobster_coupons.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 5

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_off00004f49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F49 4584 bytes
SHA-256: 73a951530ad15e510e4c1513f9b52670bf9fdd8331ba990c70b15f134a240c8d
font_01_sfnt_off00005ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF3 9888 bytes
SHA-256: 3c2775db0f815900d5bf01744a12925beedccab577db81f1a377f7678cd0c969

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