Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bf3a419480a9242…

MALICIOUS

PDF

39.5 KB Created: 2020-08-24 20:16:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a7ca57df929687ac257a36cdedbb814 SHA-1: ed463ffe2aaf720dc1a5fde9de83e6d5602285e7 SHA-256: 9bf3a419480a9242dfa4753b08ca40efecd0862e9d4aad23651058218a0bba14
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector. This suggests a phishing or scam attempt where the user is enticed to click the link, leading them to malicious infrastructure.

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.ru/pify?keyword=slope+intercept+form+solving+for+y In PDF document text
    • http://files.barbscozycottage.com/uploads/1/3/0/7/130739747/7306e02d7f1c5.pdfIn PDF document text
    • http://files.leadershippasadena.org/uploads/1/3/2/7/132741375/cbcbf.pdfIn PDF document text
    • http://xaluz.razajamiamasjid.org/uploads/1/3/1/4/131438428/sagaxo.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/1/0432/5471/0427/files/index._php_template_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9940/5979/files/thinking_about_dilations_mathbits_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2483/4975/files/93970757659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1103/8632/files/91386076515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7157/8007/files/imperative_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1425/7815/files/birth_by_sleep_ability_melding_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/vupesitulimanove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1243/1776/files/75186919851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20745245188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/baidu_map_api.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 4

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_off00005b80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B80 5392 bytes
SHA-256: dd430122497c65a9e1deb2d240cd5444189c1a154b10d7d6a10ee3533c92a8a1
font_01_sfnt_off00006dca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCA 10412 bytes
SHA-256: dd9c197f594b1e3c10ff9d7b7883fc6ed4daf1bb1fa396005c9967cc3859e837

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