Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7dc665e192830e1…

MALICIOUS

PDF

37.6 KB Created: 2020-10-11 08:13:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-28
MD5: 4457754842690b6c5188db075bf22354 SHA-1: 40940e1d37b2e12262d33c1aa23a1eadb9df7998 SHA-256: c7dc665e192830e1990e2502f7982635774e454d9e90408d0d82a868c280d532
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://gettraff.ru/strik?keyword=manual+del+guerrero+de+la+luz+descar In PDF document text
    • https://site-1036848.mozfiles.com/files/1036848/vazase.pdfIn PDF document text
    • https://site-1039918.mozfiles.com/files/1039918/jujabotamoj.pdfIn PDF document text
    • https://site-1040424.mozfiles.com/files/1040424/saluvezegutalepuvo.pdfIn PDF document text
    • http://files.brurosa.com/uploads/1/3/0/8/130813362/gitakulotenip.pdfIn PDF document text
    • http://numidur.relentlessperformance.org/uploads/1/3/2/8/132814930/2187371.pdfIn PDF document text
    • http://files.rolfeslab.org/uploads/1/3/1/4/131407549/vekoxubir.pdfIn PDF document text
    • http://files.iscariotstories.com/uploads/1/3/1/4/131437370/c4d83f9fb.pdfIn PDF document text
    • http://files.fionasophiaphotography.com/uploads/1/3/2/3/132303117/xejek_jutuzijesoda.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004753.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004753.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00007a14.bin)
    • https://cdn.shopify.com/s/files/1/0484/3136/6298/files/50776205227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/eastway_middle_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/2519/0040/files/candy_cane_lane_st._louis_mo_63109.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_off00004753.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004753.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4753 4916 bytes
SHA-256: a00814a947e16772e64bc58143a8ec70b7b42d9cd066a788d1e441966b230392
font_01_sfnt_off00005811.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5811 10332 bytes
SHA-256: 458d3e4360e9f7af3d8c4df532f7cb64be7c634bf85526eb89be61764fdf2543
font_02_sfnt_off00007a14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A14 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3