Malicious PDF — malware analysis report

Static analysis result for SHA-256 f36b36e1ea90a527…

MALICIOUS

PDF

44.0 KB Created: 2020-08-24 21:11:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2221d04e07d0c55c524f1f5cfacd62b SHA-1: 508bb7e08519e69a8d943e4e074ff03e1f9a9274 SHA-256: f36b36e1ea90a5277e78ebb8ea1ff4352fd5021635fcfcb2691a94bd87a69dae
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to shopify.com domains, but one critical link redirects through ttraff.cc, a known malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the URL that is used in the redirector. This suggests a phishing or malware delivery attempt.

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=fontana+lake+fishing+report+2018 In PDF document text
    • http://wutux.coloradowheatens.com/uploads/1/3/2/8/132816165/b13f0.pdfIn PDF document text
    • http://kujaj.schultzwines.com/uploads/1/3/1/3/131379290/01956e945f99.pdfIn PDF document text
    • http://xaxudor.skylinemediacast.com/uploads/1/3/0/8/130874359/bae736418793c21.pdfIn PDF document text
    • http://nojesoga.safespacesupervision.co.uk/uploads/1/3/2/6/132695839/8017293.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/1/0434/2104/0792/files/22687514725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9191/0038/files/91851476181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7169/2188/files/android_ui_automation_testing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/31767624621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5833/1799/files/laviginu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7994/8705/files/73350263147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2440/6935/files/dodelanuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4410/1544/files/tavidotajoxuzogiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4302/7104/files/75316862745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6958/8135/files/old_forge_trail_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/modal_verbs_obligation_and_necessity_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/7225/8983/files/lejuvovoxinonavuwuwev.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_off00006b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0E 5700 bytes
SHA-256: 6159828d83eac6ec531fd6bcd24b969df3c9b379889c2d60eab4541a94382f70
font_01_sfnt_off00007e7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E7C 10552 bytes
SHA-256: b5d4840625cfcc22b951b9af895ee253279ed25e97384431534464d26c3d9e4f

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