Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad239dfd4586d506…

MALICIOUS

PDF

40.5 KB Created: 2020-08-19 17:10:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74d723c749b1ff23090418468a69b17a SHA-1: 01b56a5c8e1b4f8218db7a67c489c306fe237cfa SHA-256: ad239dfd4586d5065ecfcfed15040c8850a84892e3c1d8db32df55144d6eea31
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm pointing to numerous PDF files hosted on Shopify, likely as a SEO poisoning tactic. One of the primary links, 'https://ttraff.ru/pify?keyword=speaking+the+truth+in+love+pdf', is identified as a malicious redirector. This suggests the document's purpose is to redirect users to malicious infrastructure, potentially for further exploitation or phishing. No scripts were extracted from this sample.

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.ru/pify?keyword=speaking+the+truth+in+love+pdf In PDF document text
    • http://files.doctorandrewwu.com/uploads/1/3/2/8/132814898/60db14001609.pdfIn PDF document text
    • http://mevotu.happyhealthyyoga.co.uk/uploads/1/3/0/7/130776445/medozuzat_midula_nawuvibawotarig.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/1/0431/4241/4493/files/neberufusogagedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1740/3549/files/kutofogutanewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/developmental_biology_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8158/7095/files/59236916483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1077/files/3015012176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/dasafezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9423/6572/files/autodesk_inventor_professional_2015_full_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9272/files/89057781872.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
🗂 Part of campaign: happyhealthyyoga.co.uk 4 samples

Related samples 4

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_off000060ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60ED 5352 bytes
SHA-256: 32beef9c30bd14ae57d291c74f06202b4d5f3f42d7fce2fb0783adc0afc8b78d
font_01_sfnt_off00007321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7321 10176 bytes
SHA-256: bf4638114d4d71fc26c75bdf59b02d1f0f1ee4589a5847519af3b1897d82dac3

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