Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dd2b7b23f5a6bc3…

MALICIOUS

PDF

47.9 KB Created: 2020-08-02 22:28:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d8447137eae7572f981e6b4437fc78d SHA-1: b1b3347be955fc6996bdcbfad4a7d8c5f7b70c72 SHA-256: 2dd2b7b23f5a6bc3ebdc655cf5d619fb6ad2e55a8fdfec50803e1a5e15726ce6
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to a game race, and the primary malicious URL is embedded within it. The PDF structure and link farm suggest a phishing or redirection attempt to a malicious site.

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.com/pify?keyword=hobgoblin+5e+race+volo In PDF document text
    • http://files.vandegriftgolf.com/uploads/1/3/0/7/130775518/6186430.pdfIn PDF document text
    • http://files.garrisonvalleyfarms.com/uploads/1/3/1/8/131871701/danezorevumixesubun.pdfIn PDF document text
    • http://files.kitchengallerydesign.com/uploads/1/3/2/6/132680808/4026470.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/1/0429/9236/9823/files/32429491577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4472/4133/files/47947622090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6025/7177/files/3750686780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0231/3373/files/vubofijobavivabokafumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4543/5030/files/e2_80_9cnoble_savage_e2_80_9d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/libeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0229/8521/files/70819626116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/tubebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0358/3384/files/toxudumegozuzevaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3448/3616/files/lazefevoxomuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/xiwelisijaradukaji.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_off00007d01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D01 5076 bytes
SHA-256: 39cf98e981261b2b7377608fcebb3047e6dd35ed6d8e9a8b6f28c7740d22ed8a
font_01_sfnt_off00008e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E62 10736 bytes
SHA-256: f0205613d7c62660ed0fedeb81daa775301338570fd47a71f2bd150883d4fe51

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