Malicious PDF — malware analysis report

Static analysis result for SHA-256 94dd0456273c7c68…

MALICIOUS

PDF

49.5 KB Created: 2020-08-27 19:54:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 509375e3d186888862aac98277849a36 SHA-1: c5800282f4939ba084368ecfd05ec65e475318c7 SHA-256: 94dd0456273c7c68ad97f39d068edbfd6c20803c8f476159e901774af34c1b57
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a significant portion of which point to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=keltie+byrne+family', which is flagged as a malicious redirector. The presence of a large number of external PDF links, many hosted on shopify.com, suggests a link farm or SEO poisoning tactic to obscure the malicious destination.

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=keltie+byrne+family In PDF document text
    • http://files.guadalupeschool.com/uploads/1/3/0/7/130739697/zitinumedirolojik.pdfIn PDF document text
    • http://zalefuj.midwestroping.com/uploads/1/3/0/9/130969754/6290340.pdfIn PDF document text
    • http://files.customerservicetalk.com/uploads/1/3/1/4/131409709/70d6c447d1d.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/1/0432/2358/0830/files/conway_functional_analysis_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6581/8789/files/maths_symbols_and_their_names.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5611/1520/files/mabipene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6195/9070/files/2_digit_by_2_digit_multiplication_worksheets_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6801/5260/files/zutadusubefeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5965/7374/files/77332221829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9118/9157/files/xibumatojonelekasob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/birumazopuwijin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5502/9141/files/besharam_full_movie_hd_720p_khatrimaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1762/4990/files/477149558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7142/files/29745344072.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 4

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_off000079a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A9 4624 bytes
SHA-256: ab9e079cfca99fa465c027bff3dd59efbecaf55306fac2c9a7666e89f5118a51
font_01_sfnt_off00008940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8940 9980 bytes
SHA-256: 8e98fdc23e371bcb67a4562ca9695d4625e9fde270286ac4af89b9a08c02d288
font_02_sfnt_off0000ab6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB6C 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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