Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d761f7e4bee5985…

MALICIOUS

PDF

40.0 KB Created: 2020-07-24 08:02:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a90e8bfe9ba7d72029ee30ca4d35b17 SHA-1: 9466e2138f8166ded23ed7e5b3b9865323dbe140 SHA-256: 1d761f7e4bee598585ebdff842f07c6e9161f867431aa61b0dcb6f1641a02104
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one heuristic specifically flagging it as a malicious redirector. The document body, though heavily obfuscated, suggests a 'catalog' lure. The primary malicious IOC is the ttraff.com redirector URL, which is likely used to funnel victims to further malicious content or phishing pages.

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=catalogo+avon+online+pdf In PDF document text
    • http://files.actorbritthalaas.com/uploads/1/3/2/7/132710665/3871983.pdfIn PDF document text
    • http://files.sherrychaples.com/uploads/1/3/1/3/131398533/dunisi.pdfIn PDF document text
    • http://files.solomonlaboratory.com/uploads/1/3/1/0/131070867/nafajizuvi-famoku-vuditipo.pdfIn PDF document text
    • http://files.aultmanorthopaedics.com/uploads/1/3/1/0/131071114/f238817443a9e.pdfIn PDF document text
    • http://files.taxesrussxm.com/uploads/1/3/1/4/131437523/5f73349ac139.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/1/0431/9716/9824/files/lumasopivugitevid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7110/files/1410120689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3387/7914/files/wumorudesifikedipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7106/8577/files/lozusod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/20859352472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9352/4637/files/7762752648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/zunenatibebubodovowekebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2823/3885/files/87520097124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4750/9416/files/51010555311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5278/5055/files/vawalexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/rukuzigitefaf.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 7

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_off0000607c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607C 4804 bytes
SHA-256: 999c253bb03a8094f0907d55f7fc6a8f38ca8ba1914efb61e0b8d96a53dbc99d
font_01_sfnt_off000070fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70FA 10000 bytes
SHA-256: 09ef0120c93568a98a283ac8099de0cfbad6159db11b22f0d88674e80f9dc940

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