Malicious PDF — malware analysis report

Static analysis result for SHA-256 73f2a99b0086264e…

MALICIOUS

PDF

50.0 KB Created: 2020-08-24 14:11:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8fd4f9d16758a2a3b15d95abbd3b3946 SHA-1: ad519df65a1a9079069f0ac39c085cd1468141a9 SHA-256: 73f2a99b0086264e505cf43911dc7f8303ff1b60871d14d43c480b1c5c92009f
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to a known malicious domain, ttraff.com. This domain is flagged as a redirector, likely leading to a phishing or malware download site. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to trick users into clicking it. The ML classifier also strongly indicated maliciousness.

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=batata+doce+assada+informa%25C3%25A7%25C3%25A3o+nutricional In PDF document text
    • http://bifeluge.millworksart.com/uploads/1/3/1/3/131380600/5206496.pdfIn PDF document text
    • http://files.connoisseurstours.com/uploads/1/3/1/8/131857071/abaa266e7dc9a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/takuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7715/7542/files/aspiration_pneumonia_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9091/2159/files/luwawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5403/0231/files/libro_aristoteles_politica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5012/2916/files/38472210117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1863/3894/files/24881957944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4612/6247/files/list_of_waterfalls_in_kerala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8211/9323/files/89559522988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/52164172611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9340/2534/files/55194946563.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000709e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709E 5596 bytes
SHA-256: a16dafd49b6349cda97287114ecb81e3a77430303d3b4b36e7107eb969fb1024
font_01_sfnt_off000082a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A3 13476 bytes
SHA-256: b06fdf011030a433b79a92786c1e9cd47784771d699b9c01239f28413251b27e
font_02_sfnt_off0000aaf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAF6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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