Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa408ce9906d2e4…

MALICIOUS

PDF

41.0 KB Created: 2020-09-20 05:16:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a4e12ec99800746a82d8ca8ba4f635c SHA-1: 29be78ac958d58eb7ac580b39153ab95f3dbdc0d SHA-256: faa408ce9906d2e448f891b9b0e13d360ece528fb0c60e7671d9cae998639cac
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to shopify.com domains, but one critical link directs to a known malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the primary malicious URL, suggesting a lure to a malicious site disguised as a link farm.

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.me/wix?keyword=peter+thompson+chicago In PDF document text
    • http://buzatibib.soulsisterapothecary.com/uploads/1/3/1/0/131071181/geliv.pdfIn PDF document text
    • http://files.galtfarmsgenetics.com/uploads/1/3/0/8/130813860/3578955.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/1/0432/7066/8448/files/58816843613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/breadboard_circuit_projects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/linoluji.pdfIn PDF document text
    • https://a4996425-2fe5-4d58-9e0b-073cb3dfe94d.filesusr.com/ugd/03dcd4_2f3f7a9dc4b647b7a480a6f3ff9d1ef3.pdf?index=trueIn PDF document text
    • https://1466a2bc-baac-422f-b2fe-b8c66f0adf28.filesusr.com/ugd/55cc32_f113cf6cb1c946669d38f50bd97e997d.pdf?index=trueIn PDF document text
    • https://4cea5041-2e98-4db6-a0d4-f66a399ec001.filesusr.com/ugd/21e9e0_3cc0c6ddaaca4b90aa8efdc0f1df7d3c.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7408/3233/files/zefopigagemutagimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5297/1685/files/default_voicemail_password_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9902/1717/files/76748520736.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 6

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_off00006151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6151 5316 bytes
SHA-256: cc09812b0adc97ff6c2a7b94ec398aefd4659e82d8092052648b64dc52a12139
font_01_sfnt_off0000733d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x733D 10608 bytes
SHA-256: e77df91c1236372baebc13bc6066532f746d9d871c015ab2c6bb04f649a4eb95

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