Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d95f777e27d9d1a…

MALICIOUS

PDF

45.4 KB Created: 2020-08-24 01:56:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea879e4dc35fefe8f9c3f4990c693ee7 SHA-1: decb1087c39b5509164474a20bf1848878e9e912 SHA-256: 9d95f777e27d9d1ad69f62a866abfb335d74726966bee26fa0e1cf8b46fad426
202 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many of which point to a link farm hosted on Shopify. One critical heuristic indicates a malicious redirector link, which is also present in the document body. This suggests a phishing or social engineering attack aiming to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=case+report+endo+perio+lesion In PDF document text
    • http://files.bvdtc.com/uploads/1/3/0/8/130874108/jusutubesu.pdfIn PDF document text
    • http://files.hijoeselectronics.com/uploads/1/3/0/7/130739204/bubawek.pdfIn PDF document text
    • http://files.nightingaleprojects.com/uploads/1/3/1/3/131381605/8350760.pdfIn PDF document text
    • http://nofapuwi.strongalways.com/uploads/1/3/1/1/131164250/8131709.pdfIn PDF document text
    • http://files.lorraineparishwriter.com/uploads/1/3/0/8/130873870/lobojixo.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/1/0433/4636/2533/files/turonukasejixolutarutavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7201/8845/files/13327085467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2122/files/vewogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2684/9700/files/2175110401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5249/1159/files/xukajajedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7546/0517/files/43258351480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/gumedoginedefur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/46142370885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977314479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2690/7040/files/72656759940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/0918/7496/files/46298956286.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 8

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_off0000736b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x736B 4856 bytes
SHA-256: 5cf1e21237667e29aba9ffd1c86af82b8bf1fcb99fe997b76853c215bde3d4b3
font_01_sfnt_off000083ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EF 10320 bytes
SHA-256: 420ff661bac48c9b6bbb413c0be93d8ad45f0e955de2b1b1ae2ac3392a4ea393

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