Malicious PDF — malware analysis report

Static analysis result for SHA-256 24e595fcc0dca996…

MALICIOUS

PDF

41.1 KB Created: 2020-08-25 13:46:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c3dffc87f31805db96cf5be70346d25 SHA-1: d931ce9649a367cd1544a2e74067fac44fcb17a6 SHA-256: 24e595fcc0dca99637557c0bc716567d366e19bebe1ded009c51da9a0079e233
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a document template, which is a common lure for phishing attacks. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link points to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates the document is part of a link farm, likely to improve search engine ranking for malicious content. The embedded URL and the document body text reinforce the lure of downloading a template, which ultimately leads to the malicious redirector.

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.ru/pify?keyword=pro+forma+income+statement+template+excel+2003 In PDF document text
    • http://regobu.dsmtoolworks.com/uploads/1/3/0/8/130873995/369fc1c.pdfIn PDF document text
    • http://files.wendypoore.com/uploads/1/3/0/7/130776590/sipenewad.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/1/0434/4827/1000/files/15937250280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5274/4347/files/47731692907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7029/1096/files/numerologia_tantrica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1442/2677/files/wedelezudusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2405/files/93104188568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/maruwawixogini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0791/6707/files/api_527_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4343/8242/files/28312124083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2814/3510/files/nizakituvipezopubitop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/87130905764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9626/4094/files/systme_digestif_anatomie.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 1

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_off000061f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F5 5668 bytes
SHA-256: baf83c116b6f244142820ecea3860125a6a99a580b00cf2cca66a6f15b6be364
font_01_sfnt_off00007520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7520 10016 bytes
SHA-256: 59229a7cf12ae2d26017f1d13af52f5698c65674660839f148592ad8a018dd34

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