Malicious PDF — malware analysis report

Static analysis result for SHA-256 78250a4ab23410b9…

MALICIOUS

PDF

41.0 KB Created: 2020-10-09 01:20:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 78282b28bc0f5f70fc174e03597ec319 SHA-1: 07b7395c4e79649595dd3e4c8625a412fd9264c8 SHA-256: 78250a4ab23410b989f74ce9f19a74a0d5e8cccc1876650d35c5cb9c6e08151d
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://ggtraff.ru/strik?keyword=8+principles+of+effective+communication+pdf In PDF document text
    • https://site-1037192.mozfiles.com/files/1037192/fepitikinumatotilomizun.pdfIn PDF document text
    • https://site-1037094.mozfiles.com/files/1037094/kikefapibuvug.pdfIn PDF document text
    • https://site-1036830.mozfiles.com/files/1036830/12451626561.pdfIn PDF document text
    • https://site-1043154.mozfiles.com/files/1043154/55287788502.pdfIn PDF document text
    • https://site-1037130.mozfiles.com/files/1037130/64304134696.pdfIn PDF document text
    • https://site-1039829.mozfiles.com/files/1039829/9005393450.pdfIn PDF document text
    • https://site-1036848.mozfiles.com/files/1036848/75328823691.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/1/0480/2684/5343/files/27564155845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0267/4845/files/bivosadumovopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4073/3341/files/43119370893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1767/files/namokatazusugijama.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c70e2084-29b2-4837-8ddb-9910ff6e1aa2/17712409892.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa75c319-a2e7-4df7-8eeb-0e207258e626/mewewebobupalu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02cc0adb-d391-418b-91aa-8d13fdff85a8/galidam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52c92b5d-5e5f-419a-b1fb-89f8013f259f/52798896387.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d478e70f-6634-400d-899d-f62f9be54baf/zijevamuxetudul.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6152 5460 bytes
SHA-256: fb4374f1cf4c7a0ec99c1527d68f20a1e3fda3b21a5ae34ad5210343b2c69bb8
font_01_sfnt_off000073d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D2 10244 bytes
SHA-256: 857130adc99f1e6f597da25e946268d523659c80e10546a4843bd9b911c93c4f

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