Malicious PDF — malware analysis report

Static analysis result for SHA-256 aef82e430ebb52ce…

MALICIOUS

PDF

42.6 KB Created: 2020-08-19 02:40:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6a372ce482cdc4778475e1565d11d71 SHA-1: 53012243ca5709408d46aa843bfae4d2227d5ee9 SHA-256: aef82e430ebb52ce86335580c5910672f7c1fa14fc781b111abaebd27d1cfa1e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the text 'Wedding invitation website free template' and the malicious URL, suggesting a lure to a phishing or scam site. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector link indicates an attempt to lead the user to a harmful destination.

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.ru/pify?keyword=wedding+invitation+website+free+template In PDF document text
    • http://files.thepracticalphysio.com/uploads/1/3/1/4/131406430/5625617.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/1/0428/9835/8432/files/37394074323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0334/7097/files/58613368962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/sekilav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1355/4855/files/vikivafivazeluwiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5487/2214/files/pudufejizefaveta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5934/5573/files/savejati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/5402439697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2613/6743/files/wow_warlock_pets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2418/7549/files/10205019386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/vutoxipor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/61252489071.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_off0000668e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x668E 5668 bytes
SHA-256: 7f47ff8ffbedb801e9daa9c99d44bdd06cbf1d83d5995f3c5136adf2c5623cca
font_01_sfnt_off000079da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79DA 10580 bytes
SHA-256: bb1922c973b247ef8e1f9eb959914c04b14cc5d665e2f38caa8b95dc09b179ef

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