Malicious PDF — malware analysis report

Static analysis result for SHA-256 114da4454815d74b…

MALICIOUS

PDF

50.7 KB Created: 2020-08-17 12:17:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d55590026ee3726df6aadc0803c33e8 SHA-1: 2be2b3f8edb8a46f44f4be0c730e62104a00eb93 SHA-256: 114da4454815d74b3eea96f1b09c392d85f2bb5bd0c4493a8ce8c3193a738732
162 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL designed to lure users with promises of free software. The ML classifier strongly indicated maliciousness, and the PDF structure itself contains numerous links, many of which are SEO-optimized and point to redirectors. No scripts were extracted, but the presence of malicious redirector links is a strong indicator of a phishing or malware distribution 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=windows+10++gratis+nederlands+2019 In PDF document text
    • http://files.lastfrontiermusic.com/uploads/1/3/1/4/131437385/kigimarubobu.pdfIn PDF document text
    • http://files.landstarcontracting.com/uploads/1/3/0/7/130776246/4879136.pdfIn PDF document text
    • http://files.dollartank.net/uploads/1/3/0/7/130775974/9761352.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/1/0429/1058/0899/files/75667601128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4590/3774/files/sitere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5420/9943/files/1073894850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/college_physics_knight_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/analytic_geometry_in_two_and_three_dimensions_chapter_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2921/7958/files/71407204581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5014/7733/files/60143982686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5046/6471/files/28769912571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/23964765682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6618/6135/files/binary_tree_cpp_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9640/8218/files/talavekedukewafeluxipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/sexy_girl_png.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3459/0875/files/86681836213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8131/0114/files/79159237073.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_off00008716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8716 5580 bytes
SHA-256: 6d908defd88e4d03ce9314e642e279d28f213134fba9d6a9796d559c09bfa91b
font_01_sfnt_off00009a33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A33 10468 bytes
SHA-256: d03d99efe31a1bad123de6e34ae38d3bff8053a4e0774a6fbd4621f1486e9dc6

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