Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3a59fe4dc2b947a…

MALICIOUS

PDF

44.3 KB Created: 2020-08-11 14:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51b47275e4706c7f1a527f24794e28d6 SHA-1: b0ad62127b676b6fa26206c4c4a85fe884524617 SHA-256: a3a59fe4dc2b947a7c6156a60054fb6c1b58d433557d24aa1bf3e5c69c5dae6b
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding a large quantity of external links. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=candy+pdf+luke+davies'. The document body contains garbled text but includes the same redirector URL, suggesting an attempt to lure users to malicious content through a deceptive link.

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=candy+pdf+luke+davies In PDF document text
    • http://files.bakersbirdshop.com/uploads/1/3/1/6/131606756/3c0fb4a0.pdfIn PDF document text
    • http://files.rootsboutique.shop/uploads/1/3/0/7/130776027/juraxezuzaf_xatitari_bimezafajolusaw.pdfIn PDF document text
    • http://files.honeycombloom.co.uk/uploads/1/3/2/6/132682913/jizituzisuwexiwaliko.pdfIn PDF document text
    • http://xuvumezel.gladewaterathleticbearbooster.club/uploads/1/3/0/7/130739654/bafizijobavasizad.pdfIn PDF document text
    • http://files.aikenkraft.com/uploads/1/3/1/3/131397971/tagiduxoxam-bukedikato.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/1/0429/7195/5351/files/92242667820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1313/4743/files/xevulir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lalosukiwafigoledexefes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2986/2312/files/polumiporanejamitamugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4523/1515/files/kodivitobifeladoxofiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8286/6072/files/89925775150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/convert_to_form_fillable_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7195/5353/files/61652196641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9105/9097/files/semavefenakaziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/architectural_engineering_and_design_management.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_off00007054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7054 5072 bytes
SHA-256: ec399770270b0c777ed02c7a1c3a1119affd14e2e7940c299a32301bfcebac78
font_01_sfnt_off000081bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81BD 10316 bytes
SHA-256: 6a86fe9f7b82f370657e5fa322d5b724fe14ecf0341d981ad57ce186d3d38b19

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