Malicious PDF — malware analysis report

Static analysis result for SHA-256 764fae03c77bdeef…

MALICIOUS

PDF

49.7 KB Created: 2020-07-30 06:20:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 402ce27b4d41ffc8832b23e81f5d0b1a SHA-1: 34cc8409e87f63c62207ab24ee52aedc4433c24a SHA-256: 764fae03c77bdeefb4653755d9a49bbd6647586df6d2929a1639474b7344bf9d
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDF files, presented as 'guidelines' or other resources, which is a common lure for phishing or malware distribution. The primary redirector URL, https://ttraff.cc/pify?keyword=neonatal+seizures+guidelines+pdf, is flagged as malicious, indicating an attempt to funnel users to harmful content. The ML classifier also strongly indicated maliciousness.

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=neonatal+seizures+guidelines+pdf In PDF document text
    • http://files.awp-wa.org/uploads/1/3/1/4/131407668/1011946.pdfIn PDF document text
    • http://files.thecuriouscatgiftshop.com/uploads/1/3/2/6/132681596/puwakir.pdfIn PDF document text
    • http://files.stoughtonfinearts.org/uploads/1/3/0/7/130775561/dd2bc820.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/1/0428/9835/8432/files/2283550224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6219/7400/files/vapomofalalilanoxisol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/juxotoxeloboxapifokixere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0918/7750/files/sovisamugalavifetufesiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6174/7605/files/bajusuxubekagumemepet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/kuzataruwikivuwove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7827/0628/files/migimilid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/35133455348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5398/1594/files/492216321.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_off000084e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E8 5112 bytes
SHA-256: 6020ac303f0cb718f54464dbcf74b089dedb1198ce647aa89cb36f777d7a43a1
font_01_sfnt_off0000965e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x965E 10324 bytes
SHA-256: cbba266395b157f18f4ed536511352dbc9c7904751450aba1a59c0d882afcc8b

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