Malicious PDF — malware analysis report

Static analysis result for SHA-256 75b32cfb5a5f6677…

MALICIOUS

PDF

44.6 KB Created: 2020-08-10 12:54:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f9fa11ede92c12e246b5b79d34fc040 SHA-1: bea0d7bd2bfceb9975cde8a3618ba992ebb383c0 SHA-256: 75b32cfb5a5f6677ac030ff3479558a7d4797f0d8433d6c6dd1403e5eeced6d4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a redirector URL, indicating a likely phishing or scam attempt to trick users into downloading malicious content. The primary redirector URL is https://ttraff.ru/pify?keyword=descargar+biblia+de+estudio+holman+pdf, which is associated with malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL and other links to PDFs hosted on various domains.

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=descargar+biblia+de+estudio+holman+pdf In PDF document text
    • http://files.centralartrail.com/uploads/1/3/0/8/130874115/dujigilurugozifiv.pdfIn PDF document text
    • http://noronowu.poseidonwater.com/uploads/1/3/0/8/130814328/5940181.pdfIn PDF document text
    • http://fugar.ginadvisor.net/uploads/1/3/1/1/131163635/bizamomazesifi-diforezofabu-diwitemoda.pdfIn PDF document text
    • http://files.justinlambmusic.com/uploads/1/3/0/9/130969190/5b0fcab.pdfIn PDF document text
    • http://files.theworkofthesehands.com/uploads/1/3/1/4/131408103/fawebitugejuji-niwazenosij.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/1/0439/7934/1982/files/47949819708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6277/8263/files/xajasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5335/6955/files/xuvir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/degof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3662/2498/files/xuxuxirozidulabuporadisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9795/5229/files/wojibif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1932/7896/files/usssa_baseball_rules_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7599/files/import_codes_for_clicker_heroes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/bumafabagigafedojije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8524/8165/files/24367135380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/golden_boy.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 5

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_off00006cf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF2 5708 bytes
SHA-256: 3dc4828cb7d8d715549b0a1a51a64dfda349ecb0323d26dc7f123e410d5600b7
font_01_sfnt_off00008033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8033 10828 bytes
SHA-256: 6f3a87872de68499946dcd71e1e1da156189bbae44464827d89d29411642b12e

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