Malicious PDF — malware analysis report

Static analysis result for SHA-256 feb62f8b42b41b7e…

MALICIOUS

PDF

43.6 KB Created: 2020-08-25 04:51:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2759160ff6a03c8526815301574fbd75 SHA-1: 06b377a00d5e84f5f1f10d2f79377a8f2314d99c SHA-256: feb62f8b42b41b7ec2337d6058ff9721ada2db6e7f357bc420609e9602886c77
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=bubbles+game+for+android+mobile'. This link is presented within the document body, suggesting a social engineering lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a potential link farm for SEO manipulation or to obscure the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.

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=bubbles+game+for+android+mobile In PDF document text
    • http://files.briankogelmann.com/uploads/1/3/2/7/132712206/6514665.pdfIn PDF document text
    • http://fufupim.trailtothepeople.com/uploads/1/3/1/8/131871921/30eac7ea.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/1/0438/6573/5328/files/five_year_personal_financial_plan_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3681/9865/files/mosquito_backpack_vacuum_parts_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36920421444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8692/1374/files/divubonebidibifap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/24509839124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3651/6250/files/zowojulenomilub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/physics_formulas_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/0975/3507/files/green_bay_packers_injury_report_week_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6388/6495/files/merc_cruiser_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/pavanugikorola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0863/7602/files/penuguwubinijegoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8596/2142/files/muscle_building_diet_plan_for_skinny_guys.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 3

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_off00006c88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C88 5416 bytes
SHA-256: 6977dc70b530a75d8f6da34ec0b0c1ae5fedc37d5b193722c8fa28aa365ccfb8
font_01_sfnt_off00007ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED6 10212 bytes
SHA-256: c6ba82d88de3a1dc11cedd4dba1723b25bcfe3d2ca76b6537e0824ca0940dc30

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