Malicious PDF — malware analysis report

Static analysis result for SHA-256 182747536230597c…

MALICIOUS

PDF

41.6 KB Created: 2020-08-04 00:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 20548bde4dc7a96fc3848d21ef5d057f SHA-1: 4ef1f0bf747376d3b31d62cebea8a541a70ad802 SHA-256: 182747536230597c3390c8683ac935431db37d5d97a2dc8fe0718eddf9f89bce
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, many of which point to a redirector service known to host malicious content. The primary redirector URL, 'https://ttraff.ru/pify?keyword=java+beginner+pdf+book', is explicitly flagged as malicious. The document's structure suggests an attempt to create a link farm for SEO purposes, likely to phish for user credentials or distribute further malware. No scripts were extracted, but the extensive use of malicious redirectors indicates a high likelihood of a phishing or malware distribution campaign.

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=java+beginner+pdf+book In PDF document text
    • http://files.6daysmemories.com/uploads/1/3/1/4/131482886/8747419.pdfIn PDF document text
    • http://files.mahanoyfootballalumni.com/uploads/1/3/1/4/131406435/5525111.pdfIn PDF document text
    • http://files.jackofall3.com/uploads/1/3/1/4/131407406/48700164bc.pdfIn PDF document text
    • http://files.rebeccalynnphotography.net/uploads/1/3/0/8/130874518/4840188.pdfIn PDF document text
    • http://java67.comIfIn 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/1/0429/1087/5815/files/52708883765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/lejiduvuzirugob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6576/0151/files/49719147501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2821/6983/files/zipuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7602/5501/files/final_fantasy_dawn_of_souls_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/73999228768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8758/4677/files/58669809694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/tupefevawomale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6568/files/88077086848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/18640569131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8732/1505/files/93427121095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6958/7104/files/katidafofositijiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/69389839207.pdfIn PDF document text
    • http://javarevisited.blogspot.comIn 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 8

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_off00006386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6386 5252 bytes
SHA-256: f919e40e77996696ab24082309b6592e5a5ebf26c02198e490c1b1042436b9e4
font_01_sfnt_off00007581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7581 10632 bytes
SHA-256: 4224176fe1c9309664f843beedf36f1af1062287b6d72b2d2a1638ad38f1514c

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