Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fb979c2054719ca…

MALICIOUS

PDF

37.4 KB Created: 2020-08-28 13:22:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5652e34b87403657e8a13d32de37378 SHA-1: 0fcde243bfe18f5cac0297ccbda2d1d75a3bab10 SHA-256: 4fb979c2054719cae5eff5785ce7d80d51445c8c068f1aa8b4c7fd113a3ba12a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious File: Malicious PDF

The PDF contains a large number of embedded URLs, many pointing to PDF files hosted on Shopify and other domains, indicating a link farm. One critical heuristic identified a link to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/pify?keyword=multiplication+box+method' which is likely the primary malicious payload delivery mechanism.

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.me/pify?keyword=multiplication+box+method In PDF document text
    • http://files.davisionfilms.com/uploads/1/3/2/6/132683463/774980.pdfIn PDF document text
    • http://files.beautywithbenefits.co.uk/uploads/1/3/2/3/132303270/5941587.pdfIn PDF document text
    • http://files.chenyy0527.com/uploads/1/3/2/7/132712139/lilogabewojumob.pdfIn PDF document text
    • http://files.eternalcycleworks.com/uploads/1/3/1/4/131437657/lorejosoxowelez_muzorog_dabubu.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/1/0447/0394/0762/files/kumujuzuzepipega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8924/8924/files/51696510723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9869/3022/files/6434783843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/7311/0951/files/medasemumifedesip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8924/5861/files/rorovapusawabobofaxumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2719/files/e2_80_9ctacit_authorization._e2_80_9d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6204/2532/files/47318205887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/14048850567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8704/3496/files/basic_computer_knowledge_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/wastewater_management_book.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 6

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_off0000561a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x561A 5252 bytes
SHA-256: bb3646a6a61065b6eb747725b6550ee115d38fd417e24c22eb873f761a4c38dc
font_01_sfnt_off000067cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67CD 9780 bytes
SHA-256: ed2785e54e22d335890a8c07c9f58f7bf1730e4647fcb32c478d69fc7b6343ff

Open this report in the interactive analyzer, or submit your own file for analysis.