Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eb69ba02041064c…

MALICIOUS

PDF

45.5 KB Created: 2020-08-09 11:32:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b48d69090bdf5a37020e28c48d7a15a9 SHA-1: e093975cc7eccf4933bc8ed50c97c596b5a8f426 SHA-256: 7eb69ba02041064c25996838fa837c1c013b5f8d463a651b5fac1d60854d0085
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=cctv+system+design+proposal+pdf'. The document's structure and the presence of numerous external PDF links suggest a link farm or SEO poisoning tactic to lure victims. The ML classifier also strongly indicated maliciousness.

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=cctv+system+design+proposal+pdf In PDF document text
    • http://files.orchardparkhoa.net/uploads/1/3/1/4/131406372/eb4dedc2f.pdfIn PDF document text
    • http://files.somersscienceresearch.com/uploads/1/3/1/4/131438419/1859434.pdfIn PDF document text
    • http://wikavesug.soxoflove.org/uploads/1/3/0/7/130776131/8480172.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/1/0432/4897/6032/files/34279903152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2115/3957/files/kaxuvidef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17232613021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/8679381775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9145/1294/files/18590086330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1202/1662/files/18996480313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1034/2563/files/92300116349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/41505073418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8039/1585/files/bazezesepugojezivuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5312/0664/files/88144021918.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_off00007469.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7469 5540 bytes
SHA-256: f3c4e5a222f3058ac6ddeb25c7cefaad282333cc73ceb0755bf5e0b1478b5881
font_01_sfnt_off00008738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8738 10108 bytes
SHA-256: b25b7becd58f32bcdf7673932ba365b37a9f30a8a53ead40d1ce35ce619e7eb8

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