Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b3a7548d380b8c3…

MALICIOUS

PDF

43.4 KB Created: 2020-08-10 07:52:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5986c8ac639e4e8fda70e66eac261d52 SHA-1: 9764291773d151ce9b999a63a537074b44bc8729 SHA-256: 3b3a7548d380b8c38bdee54ed34afa0e8eae45d71009461252e656176b912320
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=methods+of+information+geometry+pdf'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external PDF links, with 'https://cdn.shopify.com/s/files/1/0440/8786/9592/files/47103434376.pdf' being a prominent example. The document body, though heavily obfuscated, contains the malicious URL and other embedded links, reinforcing the redirection attempt.

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=methods+of+information+geometry+pdf In PDF document text
    • http://reruxaj.youngstaekwondo.net/uploads/1/3/2/8/132814930/basudobujela-jonezaj-nemixevidur.pdfIn PDF document text
    • http://files.cyberedchristianschool.org/uploads/1/3/1/1/131164205/6dfee5691e38.pdfIn PDF document text
    • http://pinaretaj.mydeckstairity.com/uploads/1/3/0/8/130814328/wituregexiluzom.pdfIn PDF document text
    • http://sazuwoziz.gothamed.org/uploads/1/3/0/8/130813528/mabus-getav-sewajene.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/1/0440/8786/9592/files/47103434376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/fusabejejawejitixonopobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4017/files/29101779828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/wezonifij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2565/3160/files/los_orgenes_del_neoliberalismo_en_mxico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7874/6261/files/xanafemaxugunuzipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0132/3421/files/thinking_in_java_bruce_eckel_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3356/7125/files/segota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7157/8007/files/27381873332.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 5

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_off000069ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69CA 5532 bytes
SHA-256: 9fa22441bff53c0dd159d1e8f5062df50b63d17e0da0d947a5c2a69753d43894
font_01_sfnt_off00007c82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C82 10812 bytes
SHA-256: f1edfd74afcfa8fb1bf87a1f5228d864cbf451f371affb3df111fe2ed31e0592

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