Malicious PDF — malware analysis report

Static analysis result for SHA-256 219775b0a7175a33…

MALICIOUS

PDF

44.0 KB Created: 2020-08-06 20:38:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3085ae28e66feff41e5c8eb56a4d22d SHA-1: 03ceea80bc3e74c64e82093c7906201c47b1d52d SHA-256: 219775b0a7175a33b6ea97eb4a83f03f8e4e9ec236fd9316de17cf3a9bdb11e5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, but one critical link redirects to a known malicious redirector. This suggests a link farm or SEO poisoning tactic designed to lure users to malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be the malicious redirection.

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.ru/pify?keyword=social+and+political+philosophy+classic+and+contemporary+readings+pdf In PDF document text
    • http://files.passionlivingmama.com/uploads/1/3/1/4/131454286/felosatawipuwi-rodivimat.pdfIn PDF document text
    • http://files.careforwildlife.org/uploads/1/3/1/4/131453188/c7d2025e70bc34.pdfIn PDF document text
    • http://files.cozyinnpetresort.net/uploads/1/3/2/3/132302802/3549785.pdfIn PDF document text
    • http://files.holes4hope.com/uploads/1/3/0/9/130969390/solofubi.pdfIn PDF document text
    • http://files.teslottawa.com/uploads/1/3/1/8/131871648/c2ad1.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/benivat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/32120563048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/kibit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3062/5947/files/muweposototulajevopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7360/9636/files/tumumapuboluladetim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6889/1040/files/99917376133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8303/7860/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3106/8825/files/gedorogoveviduwab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0392/8991/files/matt_stafford_contract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1777/0904/files/ritipifutodekanobabotadew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6354/8833/files/88113798263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3551/6318/files/juboguzogukaliwisuvigumum.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 3

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_off00006969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6969 5776 bytes
SHA-256: a66bfbc8ce988418ad14b58158b0f397fde3444ed933aafa62280391f50e66fc
font_01_sfnt_off00007cf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF3 11548 bytes
SHA-256: f1a2b101c80724e50cbabfd9cb096a8050464e0f1ccd998918e6971729644cba

Open this report in the interactive analyzer, or submit your own file for analysis.