Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d2c62773815da52…

MALICIOUS

PDF

48.1 KB Created: 2020-08-26 22:00:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4e97deb3717d41ea1795215d04127fb1 SHA-1: 714acb62b53684fce76c77871fbf040877ad61b3 SHA-256: 5d2c62773815da52d8be1cadddad6e92067d03af64390dbf72dbbf9ec0c788ab
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to SEO redirectors designed to obscure the final malicious destination. The primary redirector URL is https://ttraff.com/pify?keyword=vim+cheat+sheet+pdf+one+page, which is used to lure victims with promises of free downloads. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing or scam campaign.

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=vim+cheat+sheet+pdf+one+page In PDF document text
    • http://ritikemef.renee-fine-art.com/uploads/1/3/1/0/131070374/ce37f9.pdfIn PDF document text
    • http://files.janetruth.com/uploads/1/3/2/3/132302992/4452078.pdfIn PDF document text
    • http://files.marytherapeuticmassagenb.com/uploads/1/3/2/6/132682171/5d0758.pdfIn PDF document text
    • http://files.mjglobalcommunications.com/uploads/1/3/2/7/132712011/narikibovovogibog.pdfIn PDF document text
    • http://files.ecopacificinsulators.com/uploads/1/3/1/4/131407406/tenulebi.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/1/0431/3710/6087/files/adding_fractions_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0647/3886/files/sowet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/43161737128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4252/0739/files/24329913268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9826/7029/files/powerpoint_presentation_templates_nature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8030/2244/files/ronulexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/powevaligerodirikep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8918/files/87230604770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4514/3207/files/31786235390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7476/5475/files/multiplying_polynomials_worksheet_coloring_activity.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_off000070b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B2 5404 bytes
SHA-256: 6f7b1945f54e35e8744ae6fc7d33442da649ef4e9a20a9f92d52a45fc240a66c
font_01_sfnt_off000082f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F7 15496 bytes
SHA-256: ae7ff6b06fad62dc891295b59c35f3f6cc0979984812e65aab146a4dc295fbab

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