Malicious PDF — malware analysis report

Static analysis result for SHA-256 15e610c766a815c2…

MALICIOUS

PDF

34.1 KB Created: 2020-08-18 23:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: adf93955bda54cc4888431863474d42f SHA-1: 15dd28075d7839ca7fcd0a3875eaa17d09b22052 SHA-256: 15e610c766a815c2ddf472c5f5208b712fb4d4b7b5410d565b478bfaf2ba8559
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=argentina+flag+gif', suggesting a lure to a phishing or malware distribution site. The presence of numerous external PDF links further supports the SEO link farm heuristic, indicating a likely attempt to obscure the true 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.com/pify?keyword=argentina+flag+gif In PDF document text
    • http://files.concertinaman.net/uploads/1/3/1/4/131452840/xevowa.pdfIn PDF document text
    • http://files.hurstgreenshires.com/uploads/1/3/0/8/130873839/6812142.pdfIn PDF document text
    • http://files.urlingfordchildcare.com/uploads/1/3/1/0/131070859/216161.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/1/0431/8471/7979/files/murir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/fopexoviludaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69892687871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/kijewuxejivofulezoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7990/9030/files/jukelasobobebarudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/12921189577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4062/8136/files/xarudetusolosivixaberan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9626/8193/files/tukosuwugalofaxivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4834/1399/files/quantitative_aptitude_questions_and_answers_for_ssc.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 6

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_off000048fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48FB 4744 bytes
SHA-256: ad00dff90518e2cc7b036bae35fdbeb015ae927c097003dfb382391bcba1148d
font_01_sfnt_off0000592b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x592B 10272 bytes
SHA-256: 9da54a38d23ff7868ad8f673422482073dc1dc5d5443c6a624ce1889919c4ea5

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