Malicious PDF — malware analysis report

Static analysis result for SHA-256 5174ccf5f65c3359…

MALICIOUS

PDF

45.7 KB Created: 2020-08-18 21:38:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68dbe11d43c314db4d979a7989f52edf SHA-1: feb4a199853f2fdff20af177eec238536f0d3209 SHA-256: 5174ccf5f65c33594fc5d8c44bd5c9b425a0bd9ab5c809a35a1476cd05db7ec5
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing for a PDF link farm. The primary redirector URL, 'https://ttraff.com/pify?keyword=android+studio+file+browser+example', suggests a lure related to software development, likely to disguise a malicious redirection. The majority of the links point to Shopify-hosted PDFs, forming a link farm. No scripts were extracted, and the document body is heavily obfuscated, but the link farm and redirector are strong indicators of malicious intent, likely for SEO manipulation or user redirection to 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=android+studio+file+browser+example In PDF document text
    • http://vajawi.siintallating.com/uploads/1/3/1/4/131408024/xavunoza_mipepojax_votoxe.pdfIn PDF document text
    • http://fatuji.ukofc7464.com/uploads/1/3/2/8/132815787/e6e05ace900aa2.pdfIn PDF document text
    • http://files.bullardbasketball.com/uploads/1/3/0/7/130739802/6567a68e1583565.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/1/0429/9181/2767/files/sibigugafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5208/1053/files/vopisemotabarezigozasiwar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/vmware_workstation_15_license_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5907/6510/files/pejikizefanorexemuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/gubepukada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4649/3605/files/69470402887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6997/2384/files/budedaretubunutosumab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7692/5078/files/biwipawoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9671/7992/files/penuduzomemokidezibatub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/munodivemonegexexak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2039/3380/files/basic_accounting_objective_type_questions_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0835/files/14302816524.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_off000072bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72BF 5476 bytes
SHA-256: a39d5bf440e53c7059ecc5695d9cf99808b4afa6749cf9087d82cde58efdb2fa
font_01_sfnt_off00008551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8551 10876 bytes
SHA-256: 9bda9d5a3988ce09805b682cb571c5f02fa793147833ccdf686c1e06cb08f567

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