Malicious PDF — malware analysis report

Static analysis result for SHA-256 a659822c1a96b16e…

MALICIOUS

PDF

44.8 KB Created: 2020-08-11 07:35:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 39d34058a8f9f7a6416bf0ac3b586408 SHA-1: 8316da6c9ee960e14b238896f27862de386489f3 SHA-256: a659822c1a96b16e729528e6abab2a2eb722a7ec3daa8eb67bfe2b7cd4fda98b
194 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous PDF files hosted on Shopify and other domains, with one specific link identified as a malicious redirector. The primary malicious link, https://ttraff.cc/pify?keyword=apprendre+le+fran%25C3%25A7ais+gratuit+pdf, is designed to redirect users to potentially harmful content. The ML classifier strongly supports the malicious nature of this PDF.

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=apprendre+le+fran%25C3%25A7ais+gratuit+pdf In PDF document text
    • http://files.relationalrewilding.com/uploads/1/3/0/8/130814157/gapepovewafowedok.pdfIn PDF document text
    • http://files.hallielee.com/uploads/1/3/2/8/132815961/5788720.pdfIn PDF document text
    • http://files.pleasantviewcottagesri.com/uploads/1/3/1/0/131070925/zibovu.pdfIn PDF document text
    • http://files.sandikim.com/uploads/1/3/0/7/130739405/12f8b1a5fa9c9.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/1/0431/7049/6672/files/76524689131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0441/8459/files/railway_psychological_test_books_free_download_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2151/6445/files/business_model_generation_strategyzer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6410/6908/files/77177952139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/zevaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4394/5628/files/minivatenenatasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/77209600255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/nixasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/70587291439.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_off00006126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6126 5380 bytes
SHA-256: f649d12b7d74f482519ca9a698da4db4435ef7bbc6e967db7e8436316a8dd9bc
font_01_sfnt_off0000737d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x737D 16140 bytes
SHA-256: d27e1d539ec8af8a8e5ba69c29d088f93a84eaa6bea71018e44118fbf948372f

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