Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dc81f96197bc63e…

MALICIOUS

PDF

61.6 KB Created: 2020-08-03 16:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ae6981c54ef96d7211ed27534ee53ea SHA-1: 35e7a0dd776f100c254f265e73e9d2b7b76063bf SHA-256: 0dc81f96197bc63e05e82904155dbe0912e789638968f78c17b92bd2bf57aa94
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service identified as malicious. The document body, though heavily obfuscated, contains a URL that matches the redirector. This suggests the document is designed to lead users to malicious sites, likely for phishing or to download further payloads.

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=separation+methods+in+analytical+chemistry+pdf In PDF document text
    • http://files.edhgs.com/uploads/1/3/1/4/131408529/lujaremokike_nezuki_derunelizaxeti_kelabij.pdfIn PDF document text
    • http://files.prestigehomecare.com/uploads/1/3/2/6/132682282/b3d6fee9d337715.pdfIn PDF document text
    • http://files.hisandhersboutique.net/uploads/1/3/2/7/132740536/1950206.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4782/2236/files/57199596813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9235/2928/files/kevabeduparuzegisavef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6493/7896/files/mass_effect_2_kasumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0056/8736/files/malakis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2266/3325/files/foderubukibunax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0445/2246/files/dukadaloriduxoxamiduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/5674361797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2981/5705/files/suriziw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7319/files/72614227491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5823/2473/files/sorezusaloxuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sobobubujuwin.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a3d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D7 5388 bytes
SHA-256: 18441132bc87bedc91f6df1b0631d9e351d95cd91e6a5094a45c7bade9c5c6ce
font_01_sfnt_off0000b5f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5F7 10824 bytes
SHA-256: 978c6ebfa9b1d1f64326a081bc1ef4026da28825a43293b20e1c970cc2ef3d05
font_02_sfnt_off0000dabf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDABF 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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