Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e588fa108bc9035…

MALICIOUS

PDF

44.2 KB Created: 2020-08-07 08:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d56daca2d5a74200018e05a2d80a8d14 SHA-1: 5236ff82fd0b46bb9cc34a63045a46e4a806d878 SHA-256: 5e588fa108bc9035f2a0b334865c312041daf3b53ba8a9ae461dd7318cdf4042
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to appear as legitimate free downloads, but they redirect to malicious infrastructure. The primary redirector URL is 'https://ttraff.cc/pify?keyword=applied+mathematics+1+book+pdf+free+download', which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other PDF links, suggesting a link farm or SEO manipulation tactic to distribute malicious content. No scripts were extracted, but the presence of multiple malicious redirector links indicates a phishing or scam attempt.

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=applied+mathematics+1+book+pdf+free+download In PDF document text
    • http://files.randallbmusic.com/uploads/1/3/1/4/131455463/3228748.pdfIn PDF document text
    • http://files.bitemephotos.com/uploads/1/3/0/8/130814459/5aa35b80d33149.pdfIn PDF document text
    • http://files.ranchosanchez.com/uploads/1/3/2/6/132695734/nuligogiwafijox-punep-gabepuxazu-nuzad.pdfIn PDF document text
    • http://files.rijkewijnen.nl/uploads/1/3/1/4/131410234/5c89c4fea9.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/1/0434/3765/4178/files/movimiento_uniformemente_acelerado_formulas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9829/9813/files/subepekuxakusuwugotevot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8362/8708/files/54426995021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7957/3414/files/27798317162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3633/4501/files/jutopuwitogawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1072/6815/files/30148628577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5395/7799/files/jifabejamezexula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7815/6449/files/samesitazaxumikubuxomige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8103/1064/files/67231904745.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_off000060a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A5 5732 bytes
SHA-256: 4708329cdf15099ed532f73955ca3ec3fccecf49af0928ecb31ced4ab177e496
font_01_sfnt_off00007413.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7413 14624 bytes
SHA-256: 0ab469e3ea798ecd0830742df5ab1d3b2315b5f1fcb5685d8f7922bdb64cce79

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