Malicious PDF — malware analysis report

Static analysis result for SHA-256 9767bca410883fb9…

MALICIOUS

PDF

42.9 KB Created: 2020-10-03 09:13:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f279dd15c2731bfbe7da57112f9e64f SHA-1: ff9e349ca5df6fd3b918405758ad42cb3b6c97e2 SHA-256: 9767bca410883fb9f837b861baae44ebaf51413237b35f9e3f8a2b8272fccd32
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier and contains a large number of embedded links. One of these links, 'https://ggtraff.ru/strik?keyword=test+de+aptitudes+diferenciales+forma+t', points to known malicious redirector infrastructure. The document appears to be a link farm designed to funnel users to potentially harmful sites.

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://ggtraff.ru/strik?keyword=test+de+aptitudes+diferenciales+forma+t In PDF document text
    • https://site-1037240.mozfiles.com/files/1037240/masufedovitijojanelikijoj.pdfIn PDF document text
    • http://files.monskycreations.com/uploads/1/3/1/3/131381640/sexazekatara-lazap-foboxa.pdfIn PDF document text
    • http://files.mikeshanksportfolio.com/uploads/1/3/0/7/130739415/84f46504b041.pdfIn PDF document text
    • http://fatovemu.nihc.ca/uploads/1/3/2/6/132683138/pezofugamokuk-fabipa-puzejulagog.pdfIn PDF document text
    • http://files.amazinggrasslawncare.net/uploads/1/3/0/8/130813696/virowikogoda_pitejav.pdfIn PDF document text
    • http://raxidal.empathtoorder.com/uploads/1/3/1/3/131383373/a992d58.pdfIn PDF document text
    • http://wipapil.can-do-fest.com/uploads/1/3/1/4/131406840/zerotilakorasom.pdfIn PDF document text
    • http://popol.jacksonswim.com/uploads/1/3/2/6/132696323/lixakefotalebav.pdfIn PDF document text
    • http://jerona.hcinets.com/uploads/1/3/1/4/131405997/1b597e733.pdfIn PDF document text
    • http://files.sueglass.com/uploads/1/3/2/6/132681322/017ff7c6afe6.pdfIn PDF document text
    • http://files.esterdeboerillustration.com/uploads/1/3/1/3/131380666/908343.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/727b852e-57e5-4442-9f0d-f553a1832afb/dexagerowa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9edbf10-d8b3-400d-825e-a9341e5c821d/vitulorususaxizosejaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88540d2a-35a6-423e-bca7-83281417721d/kipukadowemuwirusebetovur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fb8521a-34fe-4fba-8b3f-24ae1bf872ec/5626905470.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 8

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_off00006524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6524 5248 bytes
SHA-256: 0d197c4822bfe5063548a19efede842875654c2320164f164cfee86f50a2aeee
font_01_sfnt_off000076e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E8 11460 bytes
SHA-256: 148e508a7f08792f53d70a664f4afff38e0b0ecf676a7adafacf78fa89fb30f6

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