Malicious PDF — malware analysis report

Static analysis result for SHA-256 c398233966d29e7e…

MALICIOUS

PDF

41.8 KB Created: 2020-08-07 06:53:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a82dc18a978677e154c8d2cecd78414 SHA-1: be987d985c901a24bed52038ad5efaae0e2ef078 SHA-256: c398233966d29e7e87b461c78a5ad14c6aa71a97cd52fbfb4b873c6bf085651a
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. This suggests the document's primary purpose is to lure users to malicious infrastructure, likely for further exploitation or phishing. The document body text, though heavily obfuscated, contains the string 'Isagenix products pdf', which is also present in the malicious URL, indicating a potential lure.

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=isagenix+products+pdf In PDF document text
    • http://files.thegabhub.com/uploads/1/3/0/7/130775876/2518653.pdfIn PDF document text
    • http://files.hhmath54.com/uploads/1/3/1/4/131438245/5015614.pdfIn PDF document text
    • http://files.therandytravisfoundation.org/uploads/1/3/1/4/131437627/7570404.pdfIn PDF document text
    • http://files.saltandbarrel.co.uk/uploads/1/3/1/1/131163747/94ed9d.pdfIn PDF document text
    • http://files.mayramloeberstudio.com/uploads/1/3/0/8/130813055/fokowixelazonibakavi.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/1/0435/4162/7029/files/bosque_de_coniferas_caracteristicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5264/6050/files/atkinson_achievement_motivation_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/negofazasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1138/1147/files/center_image_in_div.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7605/9290/files/28366661252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/32230910909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6547/5229/files/kipumapafesumib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6945/7063/files/weider_exercise_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1313/5774/files/55425897527.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6492 5296 bytes
SHA-256: 92758c4b8938bca17e417e86c3474ba675f1583f75e8f2e8ad602ab85f2e4877
font_01_sfnt_off000076b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B0 10484 bytes
SHA-256: 0998b8843d0ce5313fe1c9e2d2019377eb3443c33d62d25e9dbb75a4bacbc7d6

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