Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e518c22b18f8b76…

MALICIOUS

PDF

73.3 KB Created: 2020-07-31 15:14:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9eef827bcc9824979905adcb4cd7ed2e SHA-1: d2b525acffe62fc02b191d49cd436a9ddfea1992 SHA-256: 3e518c22b18f8b7669dbceb2b181ea94d04abfd0fc31f8ec82f7394bf7abfcdc
202 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a link farm, with several pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to contain urgency lures. The primary attack pattern involves directing users to malicious infrastructure via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=marvel+zombies+reading+order In PDF document text
    • http://files.northbrightonrecording.co.uk/uploads/1/3/1/0/131070336/bb116fe32.pdfIn PDF document text
    • http://files.aquaclearpx.com/uploads/1/3/1/8/131858044/3415118.pdfIn PDF document text
    • http://files.frontrangeautism.com/uploads/1/3/0/8/130814515/4836051.pdfIn PDF document text
    • http://files.recconnectionmiami.com/uploads/1/3/1/3/131379712/sosewamofilusis.pdfIn PDF document text
    • http://files.leesteadmanwelding.fr/uploads/1/3/0/8/130874010/4997589.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/1/0433/0687/7080/files/xeniwepisovera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7020/1760/files/dapefoditoretamode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8397/2256/files/552580504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/tulolosokuvuginofixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99289858455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mubexuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/lutexigowikip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3436/1503/files/varufedotasejaragi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4781/2248/files/pawaxemibodewepumizadip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9862/0569/files/92911165246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/63971881124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4877/2519/files/boxilevito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0078/1208/files/34620254051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/96201334056.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d57a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD57A 5108 bytes
SHA-256: 19fd44805293e70f545853be2323b62bb132775cccc6fa4f1efd05fb92c53035
font_01_sfnt_off0000e6c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C2 15808 bytes
SHA-256: 2e879c353011915cd9ae7d9048283bc3d57cee8fe021eb6e0cce0a847661c4da