Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e83d93e3116ce24…

MALICIOUS

PDF

44.9 KB Created: 2020-08-27 23:52:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a7b5f74270e583f4d3c8adf58b761aa SHA-1: 5ec992622903500ca36a1d1604c43a6b8cf04d37 SHA-256: 6e83d93e3116ce244bcb2732d52735e5c4c30e7c4966fcc2fe6627e7315251e6
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service identified as malicious. The document body text and heuristics indicate a lure related to a book title, likely intended to trick users into downloading a malicious payload or visiting a phishing site. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=the+secret+wife+book In PDF document text
    • http://ropab.crankinblackbox.com/uploads/1/3/0/8/130814328/2746b44f7a56.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/1/0434/4204/5090/files/vabodapetenirenosevaziles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8674/1655/files/78504356205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3510/6203/files/kenny_g_songbird_alto_sax_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2768/5799/files/servsafe_practice_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/dimapenifabopun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8042/5370/files/kofasigejijoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/kolirunamiwanoja.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_off000073c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C3 4972 bytes
SHA-256: d9ca84f4de7fa89f5d26b953432e7edbe53aeab0e552d67068247009e76b7955
font_01_sfnt_off000084be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BE 10192 bytes
SHA-256: 1f38623078722c65a0d54a050c1caa86d90771ce01737ec9e8993a2b63848863

Open this report in the interactive analyzer, or submit your own file for analysis.