Malicious PDF — malware analysis report

Static analysis result for SHA-256 4872ccd098edaf2f…

MALICIOUS

PDF

39.3 KB Created: 2020-08-02 15:04:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 727dd7f028792ee97b2477f3d93dbfd5 SHA-1: 114aaf6120a513449983fbd11c9cf638cc49f3e4 SHA-256: 4872ccd098edaf2f0ef12cae7d97a63e6e5437139ee0b4b1fafa7847653b17de
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to what appears to be a link farm hosted on Shopify. One critical heuristic indicates a direct link to a known malicious redirector at `https://ttraff.ru/pify?keyword=opposite+of+initialize`. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of direct payload execution.

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=opposite+of+initialize In PDF document text
    • http://files.vapor-theory.com/uploads/1/3/1/6/131607158/gusimixe-kixifasiloj-pupofisunemez-zaxetibek.pdfIn PDF document text
    • http://files.floridalgbtqmuseum.org/uploads/1/3/1/8/131857308/5111022.pdfIn PDF document text
    • http://files.crypto-decrypted.com/uploads/1/3/1/4/131437689/dasijajufo.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/1/0428/4802/6780/files/79152470539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/10225754802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4642/1158/files/discord_markdown_strikethrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6803/0102/files/69704313253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5547/3059/files/22108901660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/62095096098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7749/2118/files/ritekapezate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6993/9612/files/46161135776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5445/files/wopatumisuviwarivixeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/zazexirabejuzux.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 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_off00005c8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C8D 4876 bytes
SHA-256: 9e06c8f79be7f94bdd55ba23c8b7c5342efe1109786736c0b86b5d9631bc75ec
font_01_sfnt_off00006d40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D40 10380 bytes
SHA-256: 29f4a9d552900e35f3176b9109f656096b0845f33f6e568167556b0a7097aed6

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