Malicious PDF — malware analysis report

Static analysis result for SHA-256 90e9ce45488aad44…

MALICIOUS

PDF

39.3 KB Created: 2020-08-17 07:29:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81ffb2e66dea9d4948b041b97df426d9 SHA-1: e6de64b0596ca5428b4bafb4713e2bcb00339091 SHA-256: 90e9ce45488aad449377e7c81114226a2acc64caf13cd35667d4c3fddec67d8b
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=blastula+formation+ppt', which is likely intended to lead the user to malicious content. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious PDF.

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=blastula+formation+ppt In PDF document text
    • http://wemigib.karilerum.com/uploads/1/3/2/7/132740505/8169677.pdfIn PDF document text
    • http://vapenifur.portsmouthwc.com/uploads/1/3/1/1/131164250/wodagemusakez-fajigibo-zotapuga-ruzebudapupiw.pdfIn PDF document text
    • http://files.houstonprimaryschool.com/uploads/1/3/1/3/131398253/067d284f2.pdfIn PDF document text
    • http://files.newmexicomade.com/uploads/1/3/0/7/130775510/4665836.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/1/0431/8684/7903/files/2490269847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4434/7799/files/duxarer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5237/8784/files/camera_angles_in_film.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5348/2135/files/gukekilodekalefawoduzib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/escience_lab_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2657/9610/files/mawakamutepiwugiwokiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8555/2030/files/tusuzuwenipukunizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2259/8823/files/xupasezit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9749/6488/files/lakamodovaridokikunarilik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6170/5890/files/37210586448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1204107997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vebamuwonodivori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5525/1605/files/struct_inheritance_c.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005caa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAA 5096 bytes
SHA-256: cae146ac708174daa5b021d422981d205afa9c1ef10d096795c71a5e23e4ab85
font_01_sfnt_off00006de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE5 10180 bytes
SHA-256: d61cec740e0b3efe75294dee3ae5f2e989b91c8d40458eb7e45df89197274206

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