Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0ec3675a9178ec8…

MALICIOUS

PDF

42.8 KB Created: 2020-07-31 21:48:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e1e1a7ff2fc1ed64b52dca674647c429 SHA-1: e538ab50246e3ac2dd5d6587740521615c272fc9 SHA-256: f0ec3675a9178ec809b23bda337225d5bf21bac21e0f3772e314beb32302fcb4
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded URLs, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The document body contains obfuscated text and the phrase 'All hail shadow', which, combined with the link farm, suggests a lure for 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.cc/pify?keyword=all+hail+shadow In PDF document text
    • http://files.sunriselabradors.com/uploads/1/3/2/7/132712315/meteriw_danoxonulepak_bikugilebudi_lezerujanejuren.pdfIn PDF document text
    • http://files.levelupwithaleana.com/uploads/1/3/1/3/131379874/bd29587.pdfIn PDF document text
    • http://files.nducuwangugi.com/uploads/1/3/1/4/131453623/goxesadis-lafitisebinijiv-nonekofizar-misop.pdfIn PDF document text
    • http://files.michaelsigler.com/uploads/1/3/1/6/131637853/fbd27829c.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/1/0428/0346/2303/files/wenufovevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3287/7976/files/fafugugopebazeragu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buwukepenarunowara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2979/8818/files/noboxelinibobura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0184/7708/files/15571474778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1767/files/eminem_one_shot_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1548/7133/files/25863868120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8131/0114/files/napupogabuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7680/3990/files/penalekunolalamudi.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_off00006c44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C44 4900 bytes
SHA-256: f9e85ccd03b32289db537f55ece106e5ad5f5c68719eedf63cbde3aed1048d36
font_01_sfnt_off00007cf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF6 9896 bytes
SHA-256: 2514b25d20528f91b5f6caca8872186ec5e394c24e43c9ec5719c954427188ed

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