Malicious PDF — malware analysis report

Static analysis result for SHA-256 ede2932f129b268b…

MALICIOUS

PDF

60.2 KB Created: 2020-08-21 23:17:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 27366d1c3691dca12537b6848040a386 SHA-1: 8d7dee238681d604f7b6dcf574d2975317bb3617 SHA-256: ede2932f129b268bb1defabcc841e3bcc3d465605093d5c4aa2105bb5944dc17
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the URL https://ttraff.ru/pify?keyword=discrete+wavelet+transforms+theory+and+applications leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many pointing to Shopify domains, suggesting an attempt to obscure the malicious destination. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=discrete+wavelet+transforms+theory+and+applications In PDF document text
    • http://wowimob.mtsoprisrecriders.com/uploads/1/3/0/7/130738850/8670220.pdfIn PDF document text
    • http://files.maghknog.com/uploads/1/3/0/7/130775520/8349013.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/1/0429/3859/7539/files/35919252854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1057/5771/files/que_es_ansiedad_generalizada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/zodid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/60960776110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1626/3592/files/coward_crossword_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5349/9046/files/musuvufid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5026/1915/files/larson_calculus_10th_edition.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

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_off00008cb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB4 5648 bytes
SHA-256: 8bc586ea24d0f33e9c8ccfe42567f945d1e28db6d4ea942113c8b0fba3d10d13
font_01_sfnt_off00009fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FD3 14700 bytes
SHA-256: 096b21a9e35552ed3ae2a53e461e8d462e10263d8cf16adf7da356c5ba9d038b
font_02_sfnt_off0000ce5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE5E 16224 bytes
SHA-256: e7820fc51e823c9510b69cd30def3c6041c113b552710f50053ecd1ea592d451

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