Malicious PDF — malware analysis report

Static analysis result for SHA-256 04a89527530945bf…

MALICIOUS

PDF

58.9 KB Created: 2020-08-27 22:49:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ae236aefc23c177678b72a328ec9e21 SHA-1: 05ffd7672176b94a2375494f331e43a6cfc8ab42 SHA-256: 04a89527530945bf8b29849bff92ebe5910d45e02fa57d595f5da0f572a3b7ad
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body text, though heavily obfuscated, contains the same redirector URL and a seemingly benign PDF filename, suggesting a lure for free downloads. The presence of multiple PDF links and a redirector URL strongly indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.com/pify?keyword=kiseki+roselia+piano+sheet In PDF document text
    • http://files.iansturgess.co.uk/uploads/1/3/1/4/131437987/7044997.pdfIn PDF document text
    • http://files.amptheatreagency.co.uk/uploads/1/3/1/0/131071063/30a928e20257.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/1/0448/0784/8096/files/autocad_full_course.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/rurudoboxoneguvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1283/9834/files/21167469382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6423/9014/files/40569216647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8667/4088/files/altivar_21_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0265/7957/files/combat_magicka_regen_skyrim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/aptis_listening_test.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 3

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_off00005de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE2 23976 bytes
SHA-256: 8ca0e5c23c725cfd763130d053d0f19efdef91724bb14c2bed017e44353fa61c
font_01_sfnt_off0000a8ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8FF 4940 bytes
SHA-256: b3b4f967a59096f3c5d37606214d671046709da28f69797a1b6b7b011d6173d1
font_02_sfnt_off0000b9bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9BB 11808 bytes
SHA-256: a3a8017a0b7d43acd490544eece31756ed1065f455b1104914ff81bb0e4f8dad

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