Malicious PDF — malware analysis report

Static analysis result for SHA-256 08c7209f2d91d559…

MALICIOUS

PDF

43.8 KB Created: 2020-08-10 00:32:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36a5d379f32af2c5c095d2c9e62badb8 SHA-1: b5f4f7422cc41d4a910b8bebff243c283d7dc5c7 SHA-256: 08c7209f2d91d559e00f9555e13642628e6a90af399ec6b28787c72cb21aaef3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to trick users into downloading further malicious content under the guise of educational materials. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=geometric+patterns+grade+4+pdf In PDF document text
    • http://files.emilywahlgallery.com/uploads/1/3/1/1/131164558/24254.pdfIn PDF document text
    • http://files.hbdixon.com/uploads/1/3/0/9/130970004/3491926.pdfIn PDF document text
    • http://files.architectureofzelda.com/uploads/1/3/2/8/132815123/2905119.pdfIn PDF document text
    • http://files.livin-the-dream-foundation.com/uploads/1/3/0/8/130815058/vumitezinude.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/1/0431/9041/9616/files/lobov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30698029692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1057/1940/files/fuwibazogaxopezabafopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2951/0814/files/3878552528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2926/4546/files/joxumumezoxetofipebuxolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8307/0629/files/coco_command_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5135/1200/files/bordering_on_chaos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7179/8436/files/black_body_radiation_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4549/4684/files/mefegukebomobowadisenabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/98331190419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5011/4967/files/ziwukutivurumiwe.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_off00006cc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC0 5564 bytes
SHA-256: 6a7da48cd9591adcb9822446885797e9bf19827e5eb7fbade9db1356b5ec9e44
font_01_sfnt_off00007fa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA0 10160 bytes
SHA-256: 4f72da114f36a3c480caf1594b70d35400f9e50cd4d97d7536d8585c0e834de6

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