Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9798aba079e8151…

MALICIOUS

PDF

35.9 KB Created: 2020-08-03 04:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a60cd6abf2a04040f5ebdf61ae1cf4e9 SHA-1: d5297926ca24b66db8514fb600f8a2ae7735f10b SHA-256: b9798aba079e81518fb53cc3476c7c86bb3ada9466590baffb5783cb80e522e6
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to benign Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to the redirector, suggesting a lure. The presence of a PDF link farm heuristic further indicates an attempt to obscure the malicious destination. No scripts were extracted, but the overall structure and link analysis point to a phishing or malware delivery attempt.

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=power+system+analysis+grainger+pdf In PDF document text
    • http://files.navigatelifetransitions.com/uploads/1/3/1/4/131454560/tukiripopuvapogil.pdfIn PDF document text
    • http://files.valeriegriffinrece.com/uploads/1/3/1/3/131380604/483602e3de9a.pdfIn PDF document text
    • http://files.littlemomentsbysarah.net/uploads/1/3/2/3/132302939/sabutexebobuxepu.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/1/0434/1651/8806/files/webpack_4_sass.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87195604050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/99097095563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/lojoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4744/3865/files/josux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0409/0792/files/zazanowelalasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7056/2209/files/85078594879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8845/3533/files/33225587458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3377/1688/files/22469204961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4405/1864/files/tapekitapujiwux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7563/3306/files/79978394427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/negifezekokimugotirajo.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 1

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_off00004d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D39 5556 bytes
SHA-256: df6f153474b8dc56f802c47ee9a14fb3f1f6b5e57de19f57ea8ce4d086fa9b70
font_01_sfnt_off00006028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6028 10176 bytes
SHA-256: 852a115b405adf0140e5fa96ffb3ae8a1cab60b52dfa8d0ae3f1a358a1d498ed

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