Malicious PDF — malware analysis report

Static analysis result for SHA-256 7243b7d7ff9ce60f…

MALICIOUS

PDF

44.7 KB Created: 2020-08-11 00:41:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58852f10669c27eec2863952a8bce876 SHA-1: bc1440076bc7383e9a0da69f42d4f5d7e069d60e SHA-256: 7243b7d7ff9ce60fb4bb9ce2792e47f10515334cfb1c9e5905a67c46af266a11
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, suggesting a phishing or scam attempt. The document body and heuristics indicate a lure for a 'pdf to word converter' which redirects to the malicious URL. The ML classifier strongly supports the malicious nature of this 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.cc/pify?keyword=pdf+to+word+converter+google+chrome In PDF document text
    • http://vumumun.educationalsolutionscny.com/uploads/1/3/0/7/130739059/7752947.pdfIn PDF document text
    • http://files.musings-rants.com/uploads/1/3/2/7/132712080/saragadamag.pdfIn PDF document text
    • http://files.fundraisingsos.com/uploads/1/3/0/8/130874642/rujozomen.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/1/0427/8904/4383/files/36346250492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4997/4946/files/50024596788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8706/7291/files/35736227733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/famojesiluxawusaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1610/8707/files/watch_avengers_online_free_megavideo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3913/7702/files/20018400709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9245/1232/files/65506116591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6772/8281/files/3845899796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4532/9832/files/bivadujuxusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7707/4077/files/cantos_para_rosario_de_difuntos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/pipawezawexifefexusef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1109/6221/files/32884014267.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_off000070b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B0 5200 bytes
SHA-256: 3020f215fa5ed8064145cf411baf31538b3e47a2eb51fa920bdd430ec6d90a31
font_01_sfnt_off00008245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8245 10604 bytes
SHA-256: 4c6da85b111724ba2ce15860bbe598fe8bfd68cf594a01816b8834c1ee80fc79

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