Malicious PDF — malware analysis report

Static analysis result for SHA-256 86517ec38ad8199b…

MALICIOUS

PDF

44.9 KB Created: 2020-07-27 17:44:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 20f8f15dbe440af376afae838b84004d SHA-1: aa1b5b6fdea5ad72cd4e66e721b0b0e381e87f58 SHA-256: 86517ec38ad8199b046b9b66239da067104124d83b810ad67a9604c4c19e8b08
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically linking to a "back to school vector" theme. The primary malicious URL, https://ttraff.com/pify?keyword=back+to+school+vector, is identified as a redirector. The document body, though heavily obfuscated, contains text fragments that align with the lure. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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=back+to+school+vector In PDF document text
    • http://files.fenestraglazing.co.uk/uploads/1/3/0/8/130814234/pomikijorufobufuwez.pdfIn PDF document text
    • http://files.michaelrplewa.com/uploads/1/3/0/9/130969645/sazobidexegeju.pdfIn PDF document text
    • http://files.centelmedia.us/uploads/1/3/1/8/131871979/febagiwev.pdfIn PDF document text
    • http://files.suaxc.com/uploads/1/3/0/9/130969179/giwovuguj.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/1/0431/9156/6493/files/49840029955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/gamopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6111/6064/files/94853312828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/jijek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8891/2290/files/vemagavelaxiboju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6448/2202/files/34329624859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sopituwoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/fiwofi.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_off00007783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7783 4696 bytes
SHA-256: e5c68c406a159354631da22bb12c1fb67c5bb595ed4f65e4535a7d5523d98091
font_01_sfnt_off00008782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8782 9324 bytes
SHA-256: 110154283eae286990deeff3b6c5f1035fc6c51242852980241b1c3466806937

Open this report in the interactive analyzer, or submit your own file for analysis.