Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeda9c5e688f06e0…

MALICIOUS

PDF

46.1 KB Created: 2020-08-08 19:20:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f94f1f7f3369445ef76a252c1b205ba SHA-1: a395c616daf6c1f072348aff35723612fa3564b6 SHA-256: eeda9c5e688f06e042c0de170699a509fd73d6f251baa6635a00a0edb4ddd81d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, disguised as a tutorial, likely leads to a malicious site. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt to improve search engine ranking for malicious content. 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=bash+shell+scripting+tutorial+pdf In PDF document text
    • http://files.fawkhamridingclub.com/uploads/1/3/0/7/130739833/kobajutire_wijokolaw_bitavibazu_napupomevorove.pdfIn PDF document text
    • http://ditasa.reedyforddental.com/uploads/1/3/1/4/131409200/2809929.pdfIn PDF document text
    • http://files.borrowedblessings.org/uploads/1/3/0/7/130775505/99f59e3a66.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/1/0431/4647/7725/files/7163392256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3876/8284/files/a_history_of_magic_bathilda_bagshot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0953/2323/files/dasunemodepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/28666538590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7542/6722/files/pidikosakusoxivomurok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9163/9966/files/86626333325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/36726711640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/rapedimekewebuler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/star_trek_series_ranked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/jodofiriwuwafozaxuxarutex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0755/8310/files/xilijaba.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_off00006b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B42 5468 bytes
SHA-256: 232ef083c1b038d2c0ca540a2728e7a5140ce851d0010118f5667bb74486069a
font_01_sfnt_off00007dd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD6 14564 bytes
SHA-256: 53361e2f782147d52f3f70a3b0dc22f2b59a159aaa550d78bea3d7f679c96a0d

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