Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3a87ef84b78d5eb…

MALICIOUS

PDF

43.2 KB Created: 2020-08-26 15:31:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a7eec9b89ea264ff3e6f87986ded74a SHA-1: beab7793eb55fd033582787c10d967b21cead3b7 SHA-256: e3a87ef84b78d5ebe2e7ae742ffb3d915f7027fd3cc50d155f98551da1aaf495
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with the primary heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector identified by heuristics. This suggests the document's purpose is to lure users to malicious sites via a link farm.

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.me/pify?keyword=the+direct+materials+quantity+standa In PDF document text
    • http://kafuvatu.thetastyturntable.com/uploads/1/3/1/3/131379362/6c58c2389214d.pdfIn PDF document text
    • http://budew.shop-blace.com/uploads/1/3/1/3/131379179/f6b622d93.pdfIn PDF document text
    • http://files.asyapassinsky.com/uploads/1/3/1/4/131453252/ditigipamixete.pdfIn PDF document text
    • http://wakekuj.oldlakewoodshop.com/uploads/1/3/2/8/132814930/5fb76.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/1/0459/9640/8991/files/tropical_cyclone_weather_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/popipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3876/7266/files/wopojebipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3459/1907/files/modern_digital_electronics_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8765/8141/files/95041972061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xikosimuzewenox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7744/9366/files/path_of_the_battlerager.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6866/1660/files/46700010159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3119/0952/files/puleludoxesubikidipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8886/2622/files/blackberry_android_apps_list.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_off000069a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69A0 5356 bytes
SHA-256: e830cf65d2e3a53b8547ff57833740b5a5c977a1cb4d43c7eaf49b1dd695ad0a
font_01_sfnt_off00007baf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BAF 10600 bytes
SHA-256: ba00a0343231ac54ba0e147b8456550c79fe2cad50edb0c46f8f0b7da58d1f98

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