Malicious PDF — malware analysis report

Static analysis result for SHA-256 29c0e6b9d74b4692…

MALICIOUS

PDF

38.9 KB Created: 2020-08-09 01:44:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 411396ed270ead18039b9c8ad1c4585d SHA-1: 8ba3585cf9f89a8e13a7d7eb7ae1f07d32fd143e SHA-256: 29c0e6b9d74b4692a15f24b512098566d449d3cecf3de920c218793df4c35d73
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically `https://ttraff.cc/pify?keyword=new+cutting+edge+pre+intermediate+students+book+pdf`. This indicates the document is designed to redirect users to malicious infrastructure. Additionally, a heuristic for a PDF link farm was triggered, with numerous external links embedded within the document, many pointing to Shopify domains. The document body text, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. No scripts were extracted from this sample.

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.cc/pify?keyword=new+cutting+edge+pre+intermediate+students+book+pdf In PDF document text
    • http://jakemi.gloucestervet.com/uploads/1/3/2/3/132302782/3648bc0acd3f.pdfIn PDF document text
    • http://files.magdalenamorataya.com/uploads/1/3/1/3/131381675/vesuboxumesej.pdfIn PDF document text
    • http://files.kmaysphotography.com/uploads/1/3/1/8/131855992/412def98d78.pdfIn PDF document text
    • http://files.donshort-artscaper.com/uploads/1/3/2/8/132814306/fosurexufavani.pdfIn PDF document text
    • http://files.kincheloecam.com/uploads/1/3/1/3/131398091/wegelerosenelek.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/1/0432/2145/0914/files/37959893219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1297022614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3253/4440/files/6620368202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6306/files/foniwugiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2889/8211/files/sites_that_use_http.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3623/7206/files/30930429882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8453/4180/files/graco_3_in_1_car_seat_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1892/7776/files/75912908335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/36691103155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/tezefugajozidepemigukowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7160/9761/files/tusisexoguvumaxe.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A4B 5708 bytes
SHA-256: 4ba62d3b12c689a83bff1c1341f4d420807db3453119d8d46c763250345aaee8
font_01_sfnt_off00006db4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB4 9588 bytes
SHA-256: 3111fb5cd01432fa616ca7c70240700eff8347d7d6fadb3fdb7672dedd6b4630