Malicious PDF — malware analysis report

Static analysis result for SHA-256 40532fbe8bbe25ce…

MALICIOUS

PDF

42.1 KB Created: 2020-08-24 11:24:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 197be2148339b6ae56159041a0fbcbcb SHA-1: 5fdc423967daf253eabbe93810f1eb96c5f3adda SHA-256: 40532fbe8bbe25ceaca3c6f75c4bb7ac449fe638297763fd34338b8bcdd80799
194 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains numerous embedded links, including one pointing to a known malicious redirector. The heuristic PDF_SEO_LINK_FARM indicates a large number of external PDF links, with the dominant host being cdn.shopify.com. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious content.

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.com/pify?keyword=cambria+math+font+ttf+free In PDF document text
    • http://files.jointventurephysiotherapy.com/uploads/1/3/1/8/131871462/xijikaxij.pdfIn PDF document text
    • http://files.greenleaforganizing.com/uploads/1/3/0/7/130738568/7127391.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/1/0432/8305/4757/files/kuvapopetupegilifupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5333/5207/files/college_basketball_recruiting_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4769/0145/files/25785856195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0192/7064/files/lamemimadapajeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5787/2033/files/cetoconazol_creme_sobral_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3362/files/famamamugidasuwukufes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9230/3254/files/1602581799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/mulagovajagujovowin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1687/9271/files/skyrim_script_dragon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/how_to_hack_quizlet_match_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6790/6979/files/14211772387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/7093/2390/files/adobe_viewer_chrome_plugin.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000525a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x525A 4840 bytes
SHA-256: bd4646f5ae04357116848655f07fa8999ef53d6c4d7c4a3b90584ed4647fe6af
font_01_sfnt_off000062ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AD 10452 bytes
SHA-256: de3f38a98f5fcbd63919ee25f3f2683981f89f6d186d19a7c9ea966af37291c7
font_02_sfnt_off000086bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86BB 16084 bytes
SHA-256: a3b8ae6cb61a975f1aaa3bdf1d75290c2750726bc6c8d8b6ec62e4e9f5cc9978

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