Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5504f0734547dfe…

MALICIOUS

PDF

53.0 KB Created: 2020-08-03 21:58:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 40ebbbf1e59fd634835cc9d97cf38710 SHA-1: 4079753959ec9d04c3d6af5052c7e66f1703ebfe SHA-256: e5504f0734547dfec1284f89a9262e4d4e826697ae501fb9ff4c0edc6921ac3b
194 Risk Score

Malware Insights

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

The PDF file contains a lure for "Java design patterns tutorial pdf" and embeds a link that redirects to a known malicious URL (https://ttraff.cc/pify?keyword=java+design+patterns+tutorial+point+pdf). This indicates a phishing or redirection attack. The file also contains a mass external PDF link farm, suggesting SEO poisoning or a similar technique to distribute malicious content.

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=java+design+patterns+tutorial+point+pdf In PDF document text
    • http://files.auntyjoys.com/uploads/1/3/0/9/130969572/6b9f518f2b.pdfIn PDF document text
    • http://zetidukun.interfaithweddingrabbi.net/uploads/1/3/1/6/131636655/poxuwipakimijilamid.pdfIn PDF document text
    • http://files.greenrivermwc.com/uploads/1/3/0/9/130969939/bawezugu.pdfIn PDF document text
    • http://files.markmanley.com/uploads/1/3/0/7/130738719/vesagenezije-nidasorarobu-kinowogi.pdfIn PDF document text
    • http://files.evergreendirect.com/uploads/1/3/1/4/131483830/naxijepu.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/1/0431/2875/0241/files/74765338070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/36511106683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/kujefitanimovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/miwibosapod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/15138334831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6891/4838/files/39652290542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5676/6869/files/nudojewenepodijotuxigadol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9000/1572/files/11708533423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8225/2442/files/15339782291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3622/9278/files/89062062392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/41156018367.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 7

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_off0000928f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x928F 5256 bytes
SHA-256: d05bc5c3c9ff52dd76c13d0d5ae68eb4a2e51ccce20546cea5fc37fc02defc78
font_01_sfnt_off0000a48d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA48D 10192 bytes
SHA-256: d87b017d31c9694d2fee284afccead7a235c05be4a0a772b23cbba69db482608

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