Malicious PDF — malware analysis report

Static analysis result for SHA-256 5921fef45717a874…

MALICIOUS

PDF

63.6 KB Created: 2020-08-11 20:59:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25b1b46ca8c6c47074c77df923a676eb SHA-1: 2a3761e446189868e3e53d0d6661da4db8477984 SHA-256: 5921fef45717a87402aecb79742cead7fce9f34a551bae12ba1d7114662a9c24
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Another critical heuristic indicates a PDF link farm, with the first URL being 'cdn.shopify.com/s/files/1/0433/0687/7080/files/runuwadobona.pdf'. The ML classifier also strongly flagged this PDF as malicious. The document body appears to be obfuscated or corrupted, but the presence of these links strongly suggests a malicious redirection attempt.

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=aves+definicion+pdf In PDF document text
    • http://files.reikiwithjane.com/uploads/1/3/2/3/132302951/sorejidukefag-linokuzujudumiv-jamokoninutota.pdfIn PDF document text
    • http://files.comfortrvmattresses.com/uploads/1/3/2/7/132740552/4577268.pdfIn PDF document text
    • http://files.sjshanover.org/uploads/1/3/1/4/131438708/tinejumi.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/runuwadobona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2231/0811/files/estudio_biblico_sobre_la_familia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4224/2709/files/tajuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9659/5870/files/muzogobekijanobokumijozap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6390/1334/files/47020766674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3771/2806/files/kananemezizipuzud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7514/1783/files/biochemical_analysis_of_honey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1350/3133/files/zosenosoxiganidibetema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4705/9607/files/amsler_grid_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1116/8663/files/35012592884.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
🗂 Part of campaign: justinbendell.com 4 samples

Related samples 6

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_off0000bbaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBAA 4860 bytes
SHA-256: 747ccc60dea8aba6fe6f53b9e602141b90c58a8ad569d7ca5fa56acaefc68b23
font_01_sfnt_off0000cc4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC4D 11076 bytes
SHA-256: 2a1a6cb351d1357e858674ade9f4ed1eb2be7889e4e645de7271a48852da314d

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