Malicious PDF — malware analysis report

Static analysis result for SHA-256 84598b4e568dc9a5…

MALICIOUS

PDF

42.3 KB Created: 2020-08-20 05:55:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: daff5428bdd7baf8dea7dd7735fa3e8d SHA-1: e60306df18453e8585faf42f483b0ca905895b64 SHA-256: 84598b4e568dc9a5cb6fd94952b8ccdadf1f6f3be3314c68d7a72f583f5268ef
194 Risk Score

Malware Insights

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

The PDF contains a lure for an 'annual credit report' which redirects to a malicious URL. The document body and embedded link farm heuristics indicate a phishing attempt designed to redirect users to malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest potential for JavaScript execution or exploitation.

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.com/pify?keyword=annual+credit+report+australia In PDF document text
    • http://files.winchad.com/uploads/1/3/1/4/131406365/ronufesipedawis.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1001/5910/files/76398556172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9363/8811/files/najojeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5666/7551/files/nagizidamitarimumufap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7193/8453/files/38760081658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/indefinite_articles_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/death_metal_logos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4005/5208/files/algebra_tiles_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/kudikisiporu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5026/0890/files/oresteia_robert_fagles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9986/4734/files/bitove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9044/4445/files/tutorialspoint_angular_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0976/8600/files/dozejinojeriro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/80923819236.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 2

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_off00005c01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C01 4940 bytes
SHA-256: 370c3cae91ea786149e5d16e9679eabe5d06320d9375dcf72688175c0a18fbad
font_01_sfnt_off00006cbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBD 9856 bytes
SHA-256: 3e4ce4bcdaeeea8c1344a7e895f40468c48794474412b49ddde91e89b0426137
font_02_sfnt_off00008e4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E4D 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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