Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f592f9e9c8c6635…

MALICIOUS

PDF

45.5 KB Created: 2020-08-08 08:49:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a85bf596ae7ad71a0e8f4eb0613b58d8 SHA-1: 3ebd5c2fda96a7fd34ac444f1c229eb2bc9079ec SHA-256: 0f592f9e9c8c6635ef7578cd948515824ba0fae82c14116e5c37909eabab9882
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, disguised as a "Bsc maths book pdf". This suggests a phishing or scam attempt to redirect users to malicious infrastructure. 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.cc/pify?keyword=bsc+maths+book+pdf In PDF document text
    • http://jososuxeb.wvangler.com/uploads/1/3/1/0/131071157/kaxanorepukatupu.pdfIn PDF document text
    • http://files.londonderryhomeowners.com/uploads/1/3/0/7/130776646/benitavajimusu-kedivopijusura-mutigixozatiwov-naxepigepobapoz.pdfIn PDF document text
    • http://files.holytrinitywytheville.org/uploads/1/3/0/7/130740563/wuliva_woboxefine_zenetudidawoti.pdfIn PDF document text
    • http://files.theskinandlashlady.com/uploads/1/3/1/4/131455722/mobazasivibufo.pdfIn PDF document text
    • http://nojipip.altoreformedchurch.org/uploads/1/3/1/4/131407089/zovutenurelesiva.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/1/0433/0687/7080/files/poxusulijupidokubeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/xopolodubimowigebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6793/9743/files/sufowiresuzegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2656/2722/files/pedizomuxolejuwamalade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5715/9063/files/65738675197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7713/9613/files/carson_mccullers_the_ballad_of_the_sad_cafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0636/7656/files/51862032123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1338/1028/files/xafepafixufig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/44344118395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4003/7271/files/resiromojazesenefipunusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/zomazavamewavaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2892/9945/files/bovejofivoxafilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/fuwubizu.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_off00006de0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE0 5520 bytes
SHA-256: 4fbbb10d5c6460261c3ecca47e8d334af61a156df6149e7b5013e2343894ffd9
font_01_sfnt_off0000807f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807F 12660 bytes
SHA-256: 1dc0655f1ad06d2ec34e149752d42348242749f3c9f4b29c7c8109e7a78c40c0

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