Malicious PDF — malware analysis report

Static analysis result for SHA-256 6673ca78ad5aad5f…

MALICIOUS

PDF

61.6 KB Created: 2020-07-27 06:22:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce75495e283e2bec56aad7b857a8f768 SHA-1: cf1c62f1b47a9d7c4e6c525b61b6d66635d4ec54 SHA-256: 6673ca78ad5aad5fdbcdec7a612b57fee2e9b998b30471b23c3d2ee56d0a2e2a
194 Risk Score

Malware Insights

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

The PDF file contains multiple links to redirector infrastructure, specifically `ttraff.com`, which is flagged as malicious. This suggests a phishing or scam attempt, likely using SEO tactics to lure victims. The presence of numerous Shopify links, some benign and some pointing to potentially malicious content, further supports the idea of a link farm designed to distribute malicious content. No scripts were extracted, but the core malicious functionality appears to be the redirection to a harmful URL.

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=insuficiencia+renal+clasificacion+akin+pdf In PDF document text
    • http://files.miramarbarra.co.za/uploads/1/3/2/6/132681062/doviratojeju_ronenilom_tubanamewu.pdfIn PDF document text
    • http://files.beautyisland.org/uploads/1/3/0/7/130775528/rapebozurupekobigal.pdfIn PDF document text
    • http://files.jakzandhoney.com/uploads/1/3/0/8/130874055/5606774.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/1/0430/2385/9873/files/wavenuzumeruxago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0568/9504/files/23896446157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2588/9442/files/vuwokanujulegurisixujak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4442/8181/files/romegajipeturewurabip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/ropimasonoxegade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5540/7511/files/lapudumujeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/wigopazuvumego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4311/9516/files/36539097685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/pomupevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5864/2600/files/pilozal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/xojorebesujub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7063/5680/files/nedozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3351/files/12439975590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4619/7653/files/65775786006.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 2

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_off0000aadb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAADB 4952 bytes
SHA-256: 6e51215fa70db51a02814d8c935f0298dd04ea0879a2daf8c4b46f3d0f504f1d
font_01_sfnt_off0000bbaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBAF 14544 bytes
SHA-256: 87a37899112249ba9aaa0a43b69f658146d3e27b7617c01987720e03e10ddcd2

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