Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1ec824a46eda74d…

MALICIOUS

PDF

40.2 KB Created: 2020-08-06 09:40:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 494ca997815b810dc508c8b1a0284e8c SHA-1: f3088fb4a31bb063b79a250c09a6d81a45759ae6 SHA-256: e1ec824a46eda74d5f34ad8ec9dace06386c1db347535c3743b06944bfe67fc1
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a PDF SEO link farm. One of these links, https://ttraff.ru/pify?keyword=sports+terms+list+pdf, points to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains references to this URL and other PDF files, suggesting a lure to external malicious content.

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=sports+terms+list+pdf In PDF document text
    • http://files.taideinto.com/uploads/1/3/0/7/130739601/2800171.pdfIn PDF document text
    • http://files.nelsonrealm.com/uploads/1/3/2/7/132710592/durijikunep-fobavorogoduman-nusujelali.pdfIn PDF document text
    • http://files.nowordspoetry.com/uploads/1/3/1/6/131606291/woxomojugirovopibe.pdfIn PDF document text
    • http://files.chaosdragonboats.com/uploads/1/3/0/7/130739697/remimobavenu_tekanegobifovib.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/1/0438/9902/7611/files/28686337994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2610/2947/files/runadomaxonelanatovugov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/tujito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9856/1959/files/tukutafivalidimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1819/6891/files/hematology_rodak_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5542/2369/files/livijogexug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/29128727208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4979/3174/files/suxudaxevozomovem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4885/2904/files/lawabajozixavov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/23169149189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2171/2034/files/download_idman_full_crack.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_off000060df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DF 5080 bytes
SHA-256: e70eecba4af475eabd997ef2ed61b0d0380184c6078ba8eed40df00c18a3ed5e
font_01_sfnt_off0000720e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x720E 10076 bytes
SHA-256: 632266c64d09a84344501a8656bdd7605cc34eab6fe7c1f53c013263c8a36255

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