Malicious PDF — malware analysis report

Static analysis result for SHA-256 162f3903ff611b07…

MALICIOUS

PDF

77.0 KB Created: 2020-09-17 08:41:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80616b29cb6477a1527da3f7eebdd550 SHA-1: 3b91e45e8c38298891c6fda2d901069c9718e0be SHA-256: 162f3903ff611b07309e8645cb7da7d294deb023c0044ba130f231ddac69b864
184 Risk Score

Malware Insights

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

The PDF contains a link farm designed to direct users to potentially malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains a URL that appears to be part of this lure. The presence of numerous links on disposable hosting further supports a malicious intent to redirect users.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.link/wix?keyword=lego+minifigures+series+14+plant+monster In PDF document text
    • http://files.malbeads.com/uploads/1/3/1/3/131379792/jakixuku_bivubaxoreres.pdfIn PDF document text
    • http://kelubuku.tlcnashville.org/uploads/1/3/0/7/130740190/9911267.pdfIn PDF document text
    • http://nuvegebox.dressagering.com/uploads/1/3/1/8/131871390/227ed546c2dc.pdfIn PDF document text
    • http://dasuvif.hummingbirdchicago.com/uploads/1/3/0/7/130776445/dalelexametamil.pdfIn PDF document text
    • http://moveb.stoxandco.com/uploads/1/3/2/6/132683014/fixudo.pdfIn PDF document text
    • http://files.legacyiig.com/uploads/1/3/0/8/130813846/xomefotavabuti-bifediko.pdfIn PDF document text
    • http://files.region7imcat.org/uploads/1/3/1/3/131398498/gunowudataza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://970a87bf-addb-4bb1-9fc6-97941262d760.filesusr.com/ugd/f3bfbb_f49bcfc37fa5430eb1703639e55dfee8.pdf?index=trueIn PDF document text
    • https://6c1c9174-f30e-447a-9f52-599bfaa4d892.filesusr.com/ugd/38062a_a546c882b0764de59e4b5e364de70f62.pdf?index=trueIn PDF document text
    • https://40d8a7d2-199b-426c-bd12-cdc6e83086b7.filesusr.com/ugd/1ee69b_33fd93a08eb04fdbadd1ebf6a7868e69.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3196/0474/files/89240741455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4789/2630/files/public_policy_analysis_handbook.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 5

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_off0000f08d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08D 5304 bytes
SHA-256: 79b4cdba5dd270753d694aaf6482744c491fda20703708c3af4197048aaad0fd
font_01_sfnt_off00010290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10290 10648 bytes
SHA-256: 2e2eb4f7e206b33addb995cb934adae0b3b1577444e03de21389380147e2a60a

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