Malicious PDF — malware analysis report

Static analysis result for SHA-256 806f57526a5f8bd9…

MALICIOUS

PDF

42.0 KB Created: 2020-07-29 23:05:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e636482787308789a6de74a766120b9c SHA-1: a95f988e77c15872c9e1a328f3886cda7f5e8507 SHA-256: 806f57526a5f8bd9a8e470e5bcec9f105b0c273e090df98b7a811fab7a0cb12f
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, specifically pointing to 'ttraff.cc'. The embedded content, though heavily obfuscated, suggests an attempt to disguise the malicious nature of the links. The primary IOC is the redirector URL, which is used to funnel victims to potentially harmful content.

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=alternative+energy+systems+hodge+pdf In PDF document text
    • http://files.ktncradio.com/uploads/1/3/1/1/131164199/7176043.pdfIn PDF document text
    • http://files.bellafurworks.com/uploads/1/3/1/8/131856381/duguvat.pdfIn PDF document text
    • http://files.rossbrownscience.com/uploads/1/3/1/3/131382274/sujuda.pdfIn PDF document text
    • http://files.waitaraponyclub.com/uploads/1/3/1/8/131871602/db5978a401.pdfIn PDF document text
    • http://files.kentuckycattlemensbeef.com/uploads/1/3/1/0/131070651/sakol-vozifukurubijo-xixapurofa.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/1/0440/5703/4902/files/8736119040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/selibisefireso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/66465302702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5103/8358/files/60035046600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7641/8722/files/57384994287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7148/0742/files/24060340996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/21197394526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6438/5951/files/tozupubezijewijunoviku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/doxefinofarexibuvidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/94236903540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6345/9496/files/kerurekulabab.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_off00005a27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A27 3604 bytes
SHA-256: d914584ceb7818b637000eec0ef003315184e3990f2766ede2898222ba13a934
font_01_sfnt_off000066fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66FA 5396 bytes
SHA-256: 9b8466a71efa7154e968f464ee23f1c8627992152f26b8689b42567e52c963c6
font_02_sfnt_off00007927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7927 9752 bytes
SHA-256: ee86f4a2ae2e181475ac78011e16dd0597ae8cf1b0b639f941f5532ada346f89

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