Malicious PDF — malware analysis report

Static analysis result for SHA-256 698e1e66a3a43376…

MALICIOUS

PDF

33.8 KB Created: 2020-08-20 00:48:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a926f960bd09fe0939922f9a3cbbab2 SHA-1: 32396acae7f781cfbd93c016132b63ea2e12b21f SHA-256: 698e1e66a3a433768ed2ce3510bf90d7d153b1c066ce2e5de8f6978fe13256f8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to a redirector known to host malicious content. The document body, though obfuscated, contains text related to a worksheet and a URL that is also flagged as a malicious redirector. This suggests a phishing or scam attempt where users are tricked into clicking links that lead to malicious sites.

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.cc/pify?keyword=ible+suffix+worksheet In PDF document text
    • http://femopamo.scotsresearch.org/uploads/1/3/1/4/131437425/47090.pdfIn PDF document text
    • http://files.saikmusic.org/uploads/1/3/2/7/132740415/67c8893d65fe7.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/1/0430/6301/7629/files/pikukaraxarilolujexom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3510/6203/files/forenuwumuduwise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jeravutudab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1712/3493/files/gazusofutezubosonivuxuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5067/2026/files/womazavegarebasoxifun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0396/9689/files/43737318054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0482/9589/files/siroti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9815/9769/files/maryland_bridge_prep_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/shutter_count_canon_6d_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0994/9348/files/geletowugutetarap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1039/1207/files/xixotefavuruwegoxoxilosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5960/9753/files/14669441719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/cerebrito_libro_de_formulas.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_off00004837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4837 4944 bytes
SHA-256: 6a79d914e5b84124756a4c06e97685e96ec602d3d623647fce57bdaddf715578
font_01_sfnt_off00005915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5915 9836 bytes
SHA-256: 586ab5390410ad2be1fa08472b7fb536373e46e0930f493aca26ff4f18907c70

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