Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae266e53c72876af…

MALICIOUS

PDF

41.2 KB Created: 2020-08-24 16:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0538da66a6fa7daac2caf04d9f0540be SHA-1: 80c563120d0b11df4f259ff8ba7cb6c35663c828 SHA-256: ae266e53c72876afa50eb6808e1af3591fe3590bd0b84fc386c2b464c76bb0bc
194 Risk Score

Malware Insights

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

The PDF contains a deceptive title "Cm ruler actual size pdf" and a mass of external links, many pointing to Shopify domains, designed to appear legitimate. One of these links, https://ttraff.cc/pify?keyword=cm+ruler+actual+size+pdf, is identified as a malicious redirector, indicating the document's purpose is to lead users to harmful content. The ML classifier strongly supports the malicious verdict.

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=cm+ruler+actual+size+pdf In PDF document text
    • http://files.katherinemarieprice.com/uploads/1/3/2/8/132814906/7888902.pdfIn PDF document text
    • http://files.crookcocattlewomen.com/uploads/1/3/2/3/132302995/2892526.pdfIn PDF document text
    • http://files.artdwellers.com/uploads/1/3/0/7/130739544/noruxenibutevuber.pdfIn PDF document text
    • http://lizofopa.hoveyeyres.com/uploads/1/3/2/8/132814930/f7d53325214.pdfIn PDF document text
    • http://bolep.stauntondistrictumc.org/uploads/1/3/0/7/130740025/jififoma_metusuge_nanegupuzuve_muxavid.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/1/0432/1479/9012/files/96978157505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/zemovefinijezawarake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1653/5720/files/kogezezanonumip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/68324339898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6044/3813/files/89428764086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/26131010724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9078/7996/files/46204199757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/futilonulujemutegikoguv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/95055383916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9725/1235/files/3145994247.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_off00006110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6110 5256 bytes
SHA-256: 3375d2b1bfc242494837a891eef452748a52fab0230d35157cc230e24f70ec00
font_01_sfnt_off000072db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72DB 10908 bytes
SHA-256: 2de6ec03e7f0cfe4d74ffb8efb76b34bc15398bf234f54d234d8aa6ef5d9eef1

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