Malicious PDF — malware analysis report

Static analysis result for SHA-256 824dff68a297af14…

MALICIOUS

PDF

41.5 KB Created: 2020-08-23 04:07:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8022e8f9a9be2b12a870cc41edd4deaf SHA-1: 194a40b9d944e3aafbda3b300aebbeb168946c7f SHA-256: 824dff68a297af14ec77b5df47cf5cb971c6a618aedad1d4765a1dcc828cda0d
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a redirector link to 'ttraff.com'. The document body, though heavily obfuscated, contains text that appears to be a lure for a match report. The presence of numerous links, including those pointing to potentially malicious infrastructure, suggests an attempt to redirect the user to a malicious site. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=liverpool+bayern+match+report In PDF document text
    • http://gafozoxi.luebtowj.com/uploads/1/3/1/4/131438641/d8e50d69b98096a.pdfIn PDF document text
    • http://files.abroaddownunder.com/uploads/1/3/0/8/130874102/8031831.pdfIn PDF document text
    • http://nogogax.autumnserenityhealing.com/uploads/1/3/1/4/131437601/7358986.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/1/0431/1787/1266/files/calcifying_epithelial_odontogenic_cyst.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2179/4460/files/xiwuponi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/32172306977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3564/0487/files/wow_bfa_warfront_gear_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5396/files/99369751197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0641/9367/files/memory_allocation_methods_in_os.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4017/7308/files/57516713751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5286/7477/files/cursive_letter_writing_practice_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8590/3525/files/numpy_standard_deviation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6764/5857/files/57101784841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1609/2828/files/university_alabama_football_injury_report.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_off0000643e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x643E 5240 bytes
SHA-256: a67db7dab0102bf0d46a6156a211c47210417918de520d8e5ef57d36a75eae23
font_01_sfnt_off000075e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E8 10360 bytes
SHA-256: c36c0459d1c15943b42c5cda63ee6b0ec7ae300a8ad82bea49b3ca3f1eaf066d

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