Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6a2355e2748f8b…

MALICIOUS

PDF

35.6 KB Created: 2020-10-05 18:26:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: bdd9b393c1197e32318c2269564fbdce SHA-1: fea5972a0d0d45aecc9f14df638146bd1f658fb8 SHA-256: ca6a2355e2748f8b2521f313b201be9a3d0c1ea6eb295b24d47eca8b24b33da6
184 Risk Score

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.
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cctraff.ru/strik?keyword=erotic+massage+spokane In PDF document text
    • https://site-1036951.mozfiles.com/files/1036951/jegimepeseduza.pdfIn PDF document text
    • https://site-1039874.mozfiles.com/files/1039874/53285629354.pdfIn PDF document text
    • https://site-1036639.mozfiles.com/files/1036639/2525905422.pdfIn PDF document text
    • https://site-1038581.mozfiles.com/files/1038581/pofusisevojevokuwusanukaf.pdfIn PDF document text
    • https://site-1037212.mozfiles.com/files/1037212/4797008367.pdfIn PDF document text
    • https://site-1038482.mozfiles.com/files/1038482/10044935736.pdfIn PDF document text
    • https://site-1036835.mozfiles.com/files/1036835/66272043075.pdfIn PDF document text
    • https://site-1039391.mozfiles.com/files/1039391/xegozipimanab.pdfIn PDF document text
    • https://site-1038363.mozfiles.com/files/1038363/46542372185.pdfIn PDF document text
    • https://site-1039496.mozfiles.com/files/1039496/24017690373.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004c79.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004c79.bin)
    • https://cdn.shopify.com/s/files/1/0482/9937/6808/files/prayer_for_supernatural_harvest.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/1541/6226/files/naxedune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/4779/8952/files/5079277100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/8108/4317/files/94982509106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0987/0493/files/87745764486.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 extracted file (font_00_sfnt_off00004c79.bin)

Related samples 7

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_off00004c79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C79 5244 bytes
SHA-256: faac69e4722f895bd78a6ff4afca8a91f69d2eaa604eba2608fa16dc59e39df9
font_01_sfnt_off00005e39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E39 10216 bytes
SHA-256: 46fbdc7a3653f06ff06f173b74ce92a9d99b865b6121e8c69ed164204d17613e

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