Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cfadd9511623b6c…

MALICIOUS

PDF

49.4 KB Created: 2020-07-30 19:59:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: edc8c88753f1cfa04701ee1810d28671 SHA-1: 806c5096a723ebfb8ecc0c9dcc364b8f97509f2c SHA-256: 6cfadd9511623b6c5ec55ad8e11659d9cd07b80c22a8734d1bf61eae1bf14c77
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs pointing to a redirector service (ttraff.com) which is known to host malicious content. The heuristic firings indicate this PDF is part of a link farm designed to appear legitimate, likely as a lure for phishing or to distribute further malware. No scripts were extracted, but the presence of embedded URLs and the overall structure strongly suggest a malicious intent.

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=improved+synthesis+of+graphene+oxide+pdf In PDF document text
    • http://files.akashachamberlain.com/uploads/1/3/2/6/132682970/gavanolu_tutubamemeber.pdfIn PDF document text
    • http://files.morandoopress.com/uploads/1/3/2/8/132814220/6664212.pdfIn PDF document text
    • http://files.goytrewarmemorial.co.uk/uploads/1/3/1/1/131164431/04df0e07.pdfIn PDF document text
    • http://files.voices4earth.org/uploads/1/3/0/8/130874566/tuzalalitod.pdfIn PDF document text
    • http://files.hannesjacobsviolins.com/uploads/1/3/2/8/132814427/milesuxewafexi.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/1/0432/2358/0830/files/74471930172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7795/0870/files/wapakodejajorunukodeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7202/8823/files/37845155612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4935/2349/files/nusodinirefazananad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3915/2536/files/90574949806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3142/7234/files/83981213640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4861/5579/files/52574602715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2883/0625/files/gexiwanekopogamomula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2950/3901/files/pulonijoxogizitevifegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vewurobafug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22945880436.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_off000082d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D2 5380 bytes
SHA-256: 3d843992b2755f7dc0d2587e488150a6ddfaf29dc145aa1f83cb8ccbe5028791
font_01_sfnt_off000094f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94F5 10644 bytes
SHA-256: 193505925fab330ce2316daf0c39d030a1c6b47b09baccf06cf8f9e7327bb2bb

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