Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fc6adf56c44f10d…

MALICIOUS

PDF

57.6 KB Created: 2020-07-30 22:14:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8ef486db6af8ad060938dedca576ffd SHA-1: 11b436d1a2a7b2dc7736ce20ab0f95056aab27a9 SHA-256: 6fc6adf56c44f10d6dfeb06fd815e94379a5ef058d87dca590f68fb3549446f9
194 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating malicious redirection and link farming, specifically pointing to the URL https://ttraff.ru/pify?keyword=define+moral+development+pdf. The document body, though heavily obfuscated, suggests a lure related to 'define moral development pdf'. The presence of embedded URLs and the ML classifier's high confidence score strongly indicate a malicious intent, likely for phishing or distributing further malware.

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=define+moral+development+pdf In PDF document text
    • http://files.dissertationindia.net/uploads/1/3/1/3/131380985/fufuvanelurawev-piziz-dezeve.pdfIn PDF document text
    • http://files.luisagonzalez-interiordesign.com/uploads/1/3/1/4/131452735/8784089.pdfIn PDF document text
    • http://files.australianupholstery.com/uploads/1/3/0/7/130776819/5133090.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/1/0428/7135/7596/files/38925412693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2934/9030/files/pekusowisotepixafejarasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1117/8649/files/mixiduxan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2591/4262/files/lewipadawigovodezulivis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4614/9023/files/savodefelolodof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8591/2472/files/kotuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2240/1192/files/23506212209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0998/1085/files/13073649504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/sipojumitoruluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/72706437617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/28480546427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8006/4936/files/18974990516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9371/2286/files/92706653482.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 7

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_off0000a669.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA669 4856 bytes
SHA-256: 10f4d00dabd10d8e7b5d76f382e01eeb1dd2fee3808fef1aadc19c2541f87f84
font_01_sfnt_off0000b6d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6D3 10040 bytes
SHA-256: 7ef13d0a73008b62c4f65b50c998534a8aff7c6c24b1bc0a7634eca5c3e76ef2

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