Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9f786ba96e4f5c1…

MALICIOUS

PDF

39.5 KB Created: 2020-08-08 21:12:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a87d3b06f7a9486e79123c2faae62ec0 SHA-1: e9725c9467a42823c9e00f79b6874cdc94642a92 SHA-256: d9f786ba96e4f5c122c273e339bc027dd30fcedb45e60c6f877d23a2bcb58de4
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, includes the malicious URL and references to other PDFs hosted on Shopify. This suggests a link farm or redirection tactic to distribute malware or conduct phishing. No scripts were extracted from this sample.

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/wb?keyword=gretagmacbeth%20d19c%20densitometer%20manual In PDF document text
    • http://files.stephanieryckman.com/uploads/1/3/0/8/130874569/zelidijigipifolid.pdfIn PDF document text
    • http://kenowed.never-mor.com/uploads/1/3/0/7/130740013/vibasupe_nanegusadi.pdfIn PDF document text
    • http://files.choikingshan.com/uploads/1/3/0/7/130775002/tomopuw-nigonadaz-sagelemu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0354/3715/files/22203734671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5597/1492/files/70802210900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9179/5875/files/68466524265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9302/5187/files/kugenaburu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/34753412412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6799/0438/files/cardio_kickboxing_workout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/kidodiwifafuradaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1540/4702/files/symmetry_surgical_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1411/0880/files/gtb_aptitude_test_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/fudiselabap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1624/0807/files/vudizoviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0395/9720/files/3547838444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9612/8153/files/46893616371.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E50 5612 bytes
SHA-256: 44f7776c1ca6af56ae4207c7d6aa945f32947928830f344e91b5c6f2be4f215f
font_01_sfnt_off0000613b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613B 9784 bytes
SHA-256: 5ee8634bf9e52cd8a473462975d9704ab274b8170682dd9da9f5a5a412b0ba47
font_02_sfnt_off000082b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82B5 4324 bytes
SHA-256: 8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd

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