Malicious PDF — malware analysis report

Static analysis result for SHA-256 be33a34abac66cfc…

MALICIOUS

PDF

34.2 KB Created: 2020-08-05 06:50:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09ba6e8f3fde81d44cc5022f227c1e2f SHA-1: 8148b5777f44f65beec23d037105258e8474bf56 SHA-256: be33a34abac66cfc02545efe953ab19071f582e7003381326de1fff48a30e02b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially obfuscated, includes the target URL and other URLs that appear to be part of a link farm, suggesting a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict.

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/wb?keyword=makro%20ekonomi%20rudiger%20dornbusch%20pdf In PDF document text
    • http://files.buttonandspoon.ie/uploads/1/3/0/7/130775825/getofizoj.pdfIn PDF document text
    • http://files.viewedwithgratitude.com/uploads/1/3/1/4/131453429/2ca1129cb.pdfIn PDF document text
    • http://files.ksp-boutique.com/uploads/1/3/1/4/131453288/3415944.pdfIn PDF document text
    • http://files.mrswagner.net/uploads/1/3/1/1/131163976/1323315.pdfIn PDF document text
    • http://files.mikewritesabit.org.uk/uploads/1/3/1/4/131452842/nuxopid.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/1/0440/7299/2918/files/39364030858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/22594821776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2504/6431/files/bernardino_ana_maria_matute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0439/4661/files/52317133523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0781/8398/files/minecraft_magic_mods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/kumekekinetefajigej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8206/3778/files/naming_alkynes_worksheet_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/pubizuxetufalizumoboxuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2860/3295/files/ramanabub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0570/5374/files/unity_rotate_camera_with_mouse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/vumemawetawejagusot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9269/files/tigegejidefirisupezaximag.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_off000043ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43BA 5748 bytes
SHA-256: 4ab43c040157fe562f3e611398fed9e5b018bf1cd50ddf78879a3c2d03d23115
font_01_sfnt_off00005733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5733 10836 bytes
SHA-256: 983c66be6bd641b0767cc561f1585b09d364c9e2b76a034e3e5db6098e824188

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