Malicious PDF — malware analysis report

Static analysis result for SHA-256 27df8a541b84b365…

MALICIOUS

PDF

45.0 KB Created: 2020-08-09 07:26:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06564c9926b528db11cfa1d404303c52 SHA-1: f58139fa0daad7420d637cd2541f0abae517a3d9 SHA-256: 27df8a541b84b365a0fb7560f9d9dcbfad9a6dfd4c0a5d84896ca1422d90a767
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Luggage security system mini project pdf' and the authoring application 'wkhtmltopdf', suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy. The ML classifier also strongly flagged this PDF as malicious.

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=luggage+security+system+mini+project+pdf In PDF document text
    • http://files.levitytherapeutics.com/uploads/1/3/0/7/130740051/kulazuduwiximifad.pdfIn PDF document text
    • http://files.wisewomanliving.net/uploads/1/3/1/4/131407361/puruzexixorike.pdfIn PDF document text
    • http://files.orenpizmonylevy.com/uploads/1/3/0/7/130739308/jenoramuvijera.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/1/0435/1878/7743/files/siwoxowuvegigugate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65105912314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7393/6291/files/54143020673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/kanizovapabozizoramig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/rarajinupatejinowadegof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2914/2426/files/panel_data_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0689/1931/files/effects_of_globalization.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9802/1793/files/methods_of_waste_disposal_in_nigeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7875/files/fosawojojuzamedarumarat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/9554/4228/files/cengage_calculus_maths_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8222/7617/files/42039165951.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_off00007122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7122 5560 bytes
SHA-256: 496f4cd3e8499d65cd4b5cd5aa5d33ed202c83d0cc1d68a0f444e22fba23a603
font_01_sfnt_off0000840d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x840D 10076 bytes
SHA-256: a27dcb5cf475f48c0d4bb58987a9aab40b77e9128bd352fb2bea7363362ce48b

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