Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d17069c43fb80bd…

MALICIOUS

PDF

46.8 KB Created: 2020-08-10 07:04:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 878c27ffa99a4b94744e4ba38c003eea SHA-1: cf19f031f3ae05e1f8b776539feec06fa7cd4e30 SHA-256: 5d17069c43fb80bdfce4f19bb4b1ad2ab82ac3ddf0ce891df70e85b4741ab18a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector URL (https://ttraff.ru/pify?keyword=inframundo+bernardo+esquinca+pdf). This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or to download further malware. The ML classifier also strongly indicated maliciousness.

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=inframundo+bernardo+esquinca+pdf In PDF document text
    • http://zokete.vi-vi.org/uploads/1/3/0/8/130814328/a95f82b5291.pdfIn PDF document text
    • http://files.hollysmithsj.com/uploads/1/3/1/4/131453636/goduzonowoguzinex.pdfIn PDF document text
    • http://files.chappellskc.com/uploads/1/3/0/8/130873717/gamanudi-feditigojivi-damezidete-fatosososupu.pdfIn PDF document text
    • http://files.paulsumich.co.nz/uploads/1/3/1/4/131437044/28c77.pdfIn PDF document text
    • http://files.abbigailrichardsmakeup.co.uk/uploads/1/3/1/0/131070711/3051543.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/1/0434/3057/6285/files/soxavulimosubegenanimukiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7949/8917/files/nuxuxovewujamoxamoliwevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/43218938672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/concept_of_sustainable_development_in_nigeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7968/7574/files/janinetalar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9301/6222/files/7932923948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/bejenaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/league_won_t_open_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7274/8709/files/paulo_coelho_alchimistul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1230/7618/files/arboretum_board_game_rules.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F52 5472 bytes
SHA-256: 1d151e6d1e3941c779cd426f5463518ff7b1f81f3905935106dc4f3bc13333a5
font_01_sfnt_off000081c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C8 1936 bytes
SHA-256: 84daf345e21b08075a6e329eeacb0a13a0447ddcc3efc64e98a9a4ab9c6a9d9d
font_02_sfnt_off00008b09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B09 10448 bytes
SHA-256: 2b8628f1ed9cf7cbe30c86a5f4c622c5486618ad452448169c4c7956acbb716a

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