Malicious PDF — malware analysis report

Static analysis result for SHA-256 82b32644207aad8c…

MALICIOUS

PDF

36.4 KB Created: 2020-08-17 01:14:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec24890511e202b6d90b7b126beaa85e SHA-1: 2f7e78a88f8eb862113f19bedd107d1c76aadaf0 SHA-256: 82b32644207aad8c1c7d3af4fdc2a095eb4baac069581916ed842478552abaa6
202 Risk Score

Malware Insights

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

The PDF document contains a lure related to a 'Chiropody card hse application form' and includes numerous external links, many of which point to redirectors. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=chiropody+card+hse+application+form'. The ML classifier also strongly indicated maliciousness. The document body, though partially obfuscated, contains embedded URLs that likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=chiropody+card+hse+application+form In PDF document text
    • http://files.thesacredmiddle.com/uploads/1/3/1/4/131453156/pegafaw_luxipe_judurudu.pdfIn PDF document text
    • http://midujoxi.randysnfldcountrymusic.com/uploads/1/3/2/6/132681670/gedalusuvo.pdfIn PDF document text
    • http://files.johannes-keller.net/uploads/1/3/1/4/131453429/3696935.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/1/0433/8365/2506/files/28403802577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8575/8617/files/briggs_and_stratton_5hp_engine_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0714/8185/files/sujapabaner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0658/3203/files/kozawexibupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6984/9246/files/jobaxidexabasopoduwunow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/bewatisiludojofupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1049/7434/files/putesozuba.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 6

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_off000050b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50B6 5404 bytes
SHA-256: bd4e2f1eb0821df25aa599d5092b5fa0d505f03987362a7026256cfa6bca2a4e
font_01_sfnt_off000062e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E8 10120 bytes
SHA-256: e3b265b6079638c177ddcd56b316ba891a4ea6ee4ae2f8f84309e7948475292f

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