Malicious PDF — malware analysis report

Static analysis result for SHA-256 941d34391f2958ff…

MALICIOUS

PDF

51.6 KB Created: 2020-10-20 09:45:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 401a7366fad47027555c07b6af94935a SHA-1: 1d88180bd1b3efd7fab5406678aa8530c33fba15 SHA-256: 941d34391f2958ff18830f238d954d9af31b7f753566b5320e3893d4208622e1
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://ttraff.com/123?keyword=android+theme+attributes+list In PDF document text
    • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/nalutad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369138/normal_5f8be0f4028bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384472/normal_5f8d0ab712bad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376362/normal_5f89ac37c9d73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5f8d7b8855501.pdfIn PDF document text
    • https://zirufifun.weebly.com/uploads/1/3/0/8/130874679/kinifipi.pdfIn PDF document text
    • https://lotagixowila.weebly.com/uploads/1/3/1/1/131164100/94f126fd.pdfIn PDF document text
    • https://wipomozexabezi.weebly.com/uploads/1/3/0/7/130776841/zomedan.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/1995322.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/pabagugiridepoluwaru.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b3dded8-bd92-42af-9cbd-b6f9797f0b7b/lazedeka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6861ef7-a76e-421b-9c69-29601fd3f199/suwinozapifitetut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa17030e-ae9a-47e3-aa99-0ea3759b6bea/14279571145.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f891b06-17e6-412a-8fb8-da7005246692/40040276609.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f916b77d-8bdc-4cef-b8a7-ecfc94f06644/1312800791.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e213fa10-c2fb-4d6b-bd15-f2c589b50f21/folland_chapter_6_solutions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0f0731d-a4e0-482a-ba9c-3e3bf72a85e4/zarisidogat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/451738b0-0478-481c-aa06-8f54fc5da168/jutevogalalidexusi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8485a079-e8ce-406e-be92-3bf96760bef3/64880171963.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a182efd-e015-4f1f-bcf0-6c4d22183ee4/givan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/7098/8710/files/51881729407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/5736/4135/files/luzam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/4807/4905/files/58687208461.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_off00008a23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A23 5196 bytes
SHA-256: b93928cafe7f686407cf54c04480d3542b08fa95ea6b515f1cfafaf3a666f358
font_01_sfnt_off00009b91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B91 11212 bytes
SHA-256: fcba3fc96077f80dfdd3efe3d5c00605b4c76c81ab393f3dc3aa45137a935b8f

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