Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1cacc844710383…

MALICIOUS

PDF

65.9 KB Created: 2020-10-03 00:56:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-31
MD5: fc1a50794e877923939373ba97e5fb62 SHA-1: 9f4ed9e081abd2f59cd8e1cce97be73ed68d2362 SHA-256: 5a1cacc844710383be3060cbab6faa7c900fd2945d768179c159452a6d849091
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.
  • 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.
  • 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=rituel+d%2527+apprenti+rite+fran%25C3%25A7ais In PDF document text
    • http://files.dunlapfire.com/uploads/1/3/1/6/131607027/53ffbf98c8.pdfIn PDF document text
    • http://files.marcyrobertson.com/uploads/1/3/2/7/132740747/d7555.pdfIn PDF document text
    • http://files.drjohnnylee.com/uploads/1/3/0/7/130738615/rapusazuwewafurikor.pdfIn PDF document text
    • http://files.theuanation.com/uploads/1/3/1/4/131436997/puxadiduwawesapagopo.pdfIn PDF document text
    • http://files.mylifebuilder.org/uploads/1/3/2/6/132680932/6235604.pdfIn PDF document text
    • https://site-1040249.mozfiles.com/files/1040249/84377056058.pdfIn PDF document text
    • https://site-1036969.mozfiles.com/files/1036969/92414768806.pdfIn PDF document text
    • https://site-1037106.mozfiles.com/files/1037106/laxajagipepisifos.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/1/0440/7869/4565/files/pcsx2_ps2_emulator_for_android_apk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7006/files/download_injustice_2_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6285/2761/files/concepto_de_gimnasia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1a8e26f-a102-451c-875a-4447960eda4d/reradafo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64ea3614-2f13-422a-91f8-351994b365b4/wobifabugobobidepizapov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a260bf1-2865-4305-8f30-79df00556ca5/xadevewaguxigeronalaron.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 6

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_off0000bc7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC7E 5256 bytes
SHA-256: 742411ef1c1dcb27235a2636860a66ae6d886c741ffbb81d44e57c66ce31c9c7
font_01_sfnt_off0000ce81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE81 13596 bytes
SHA-256: dda9c2637c803d9ae0a7fd906a502c431d861720bcb3243fec21f39967d67e70

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