Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7ee233fa9c755f1…

MALICIOUS

PDF

32.2 KB Created: 2020-08-09 00:48:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 16ad3ac27b01b23d2458ea42e177fe46 SHA-1: 335138c71661ce9e5ae7f703c9f7ab34d5bb5beb SHA-256: c7ee233fa9c755f166a50770a6b7db5060c691acfd8090514ca5cc3dfd7819e4
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that triggered this heuristic. The presence of numerous links, many pointing to Shopify domains, suggests a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=i+found+amber+run+piano+pdf In PDF document text
    • http://files.chalicewurx.com/uploads/1/3/1/3/131378942/pojavowufutut-redajokafugefa-mezukukuwax.pdfIn PDF document text
    • http://files.jorieberman.com/uploads/1/3/2/7/132741181/dusexagizewelatakeki.pdfIn PDF document text
    • http://files.youthtechnation.org/uploads/1/3/0/7/130775922/6562307.pdfIn PDF document text
    • http://files.lovingthemother.com/uploads/1/3/1/3/131398140/tefatenifo-pilaxa.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/1/0429/4138/2812/files/mozotuxugowutepumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4634/5640/files/39857431450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/daxamepepinopiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4227/4471/files/winston_churchill_livros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9776/7592/files/muxoxidupapenedorejitopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1129/2829/files/angioedema_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1903/2984/files/15063540307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/27845210803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/kedepuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/how_to_cite_online_article_apa.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 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_off00004463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4463 5052 bytes
SHA-256: def1a6405acfdf18b60cb4879a05cc4ac969a2059528d75a8a8c326da31b74c8
font_01_sfnt_off00005572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5572 9004 bytes
SHA-256: ba3882f4197e1d2e04ef188e291dea6b31f9f00b7c0b088a185b86c8d810e4d7

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