Malicious PDF — malware analysis report

Static analysis result for SHA-256 8996955dbc9d5867…

MALICIOUS

PDF

104.5 KB Created: 2020-08-09 06:39:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa9dea41551d281670fd8f8b4f94d800 SHA-1: db196ec4b900d135c495a8345fe5ba84857d6f7c SHA-256: 8996955dbc9d5867235b1646d95c3e57fa3b2bca625232f77addeff43d6df8ed
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, masquerading as a document download. The ML classifier strongly indicates maliciousness, and the heuristics confirm the presence of a redirector link designed for phishing or malware distribution. No scripts were extracted, but the primary attack vector is the malicious link.

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=uncle+tom+s+cabin+chapter+1+pdf In PDF document text
    • http://xavoloril.lebeausejour.ch/uploads/1/3/1/4/131407552/vumosuk.pdfIn PDF document text
    • http://files.annualgolf.com/uploads/1/3/1/3/131380288/pidivulan.pdfIn PDF document text
    • http://files.eurekasecondaryschool.ie/uploads/1/3/0/8/130874180/4892be4e327.pdfIn PDF document text
    • http://files.bethannysbabies.com/uploads/1/3/0/8/130813904/javabifesesizese.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/1/0429/7257/7946/files/81750016880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0670/5316/files/5155194331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4694/4416/files/47764362406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0976/9631/files/woocommerce_load_scripts_to_other_pages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/sulakakomaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3865/2069/files/15155181937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9432/7961/files/23251862460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6436/0100/files/3847347457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3413/2131/files/d_d_5e_combat_actions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4701/files/zikuxadulog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2255/7082/files/91847957843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7539/4979/files/42875489323.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 7

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_off00015dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15DD9 5580 bytes
SHA-256: 119b4dfa685e6ef73f65650a699182d33d858bea60e84f7f409a37198f4c1be3
font_01_sfnt_off000170a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x170A6 10404 bytes
SHA-256: 474433137fdec4a604f784ff9eb4f78516a3c73317e8cbf6380324d74117b21e

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