Malicious PDF — malware analysis report

Static analysis result for SHA-256 402c95feea80e0fb…

MALICIOUS

PDF

44.9 KB Created: 2020-08-10 02:20:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9cb2ec15fba9fa137bc0db07b3219336 SHA-1: 0c86f153cd2be39f8523e7d51fcf69f4ec97bf7b SHA-256: 402c95feea80e0fb800e225c108267ce956d0fea18e24caba5870c2170dba4c2
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body, though heavily obfuscated, contains URLs that are also present in the heuristic findings. The primary malicious link identified is https://ttraff.ru/pify?keyword=ayesha+at+last+free+pdf, which is likely used to redirect users to a malicious site.

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=ayesha+at+last+free+pdf In PDF document text
    • http://sisolaso.niclasfransson.com/uploads/1/3/0/7/130739835/sarazavole-rotutot-tureguv-juditonited.pdfIn PDF document text
    • http://files.god4ce.com/uploads/1/3/0/8/130813357/rupidikex.pdfIn PDF document text
    • http://files.pacificstudiodance.com/uploads/1/3/2/8/132815008/3960035.pdfIn PDF document text
    • http://levaletew.canfireinstructors.com/uploads/1/3/2/6/132681670/xulipoporo.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/1/0441/0854/6200/files/the_fray_setlist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8237/4561/files/94473755281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/asteroide_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5030/2616/files/zoxoxob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1775/5034/files/34962629333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vozazugimutiwobawaxuleg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/21861471001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9583/2216/files/8265634745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/mejovuzojidadibofala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1991/7717/files/modizik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9557/0072/files/vapusuripapajesovikuvutin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1908/2651/files/periodic_table_chart_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8439/8236/files/armello_explode_pool.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_off0000716d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x716D 5220 bytes
SHA-256: 3d75b1630fea87c52bcfd859bd0a7874520dcdc48a7458b5d8814bf4d3a1305c
font_01_sfnt_off00008334.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8334 10284 bytes
SHA-256: 88d9d1bbcd014c1616ddd9eb06565044e1b5691e4c648cf08ca8e1f692cded46

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