Malicious PDF — malware analysis report

Static analysis result for SHA-256 84a5a4b28d861e80…

MALICIOUS

PDF

38.2 KB Created: 2020-08-02 11:31:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 348917f8eef86a2ae2ef4aaf5b50b3d7 SHA-1: a5c4040b99883027dd8c62060609d78aa2bbcc75 SHA-256: 84a5a4b28d861e80a18dcd67185b4b8a8ef308c3e57cf5c692ca42593e59fc0b
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically `https://ttraff.ru/pify?keyword=scavenger%2527+s+guide+to+droids+pdf`. This indicates a phishing or scam attempt disguised as a guide. The presence of numerous links to other PDFs suggests a link farm designed to obscure the final malicious destination. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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=scavenger%2527+s+guide+to+droids+pdf In PDF document text
    • http://files.disneymusictheory.com/uploads/1/3/0/7/130775934/polugorejudupis-zopotu-vesewebuzavamu.pdfIn PDF document text
    • http://files.not4cell.com/uploads/1/3/2/8/132815342/5447958.pdfIn PDF document text
    • http://files.kitzanfamilyfarms.com/uploads/1/3/1/8/131857193/476923ab41ca.pdfIn PDF document text
    • http://files.dnaleatherwa.com/uploads/1/3/0/7/130738814/8327209.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/1/0432/0264/2075/files/fukobimanog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3241/2311/files/96806939317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1128/4893/files/38646691854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5744/files/loxawevezobebizosox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9670/files/gerulodobubuxorivunuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2325/1094/files/molukejiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8351/4527/files/xurabadivorogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85155057715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/zejoligeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46150969179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4479/7600/files/guzabefipitejizifuw.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_off0000562f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x562F 5488 bytes
SHA-256: 77825fcef03917cb15150024fcfaed88383d9620f7bd62f7ed3db8e3d9a145a1
font_01_sfnt_off000068ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68FF 10208 bytes
SHA-256: 04af857a0af6e01a003c4498020abf593b273088dda52d0b2fc9c0fc197c0644

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