Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9c76609667e6f14…

MALICIOUS

PDF

68.6 KB Created: 2021-03-22 20:11:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2ce2cc9099ecaa5057f3cc67c95eb312 SHA-1: d375bbe88f235d9b3564c04c60cf8fb1015a89cb SHA-256: f9c76609667e6f149cd9f80358d29f1b4281cc2df03d6514ecb0158ee91ad507
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a phishing or redirection attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests it is designed to lead users to potentially harmful content. No scripts were extracted, but the document's structure and URL patterns are consistent with a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://midufefew.ru/wix?keyword=union+county+landfill+austin+chaney+road PDF link annotation
    • http://zagejudivavi.sportsontheweb.net/nujakosegonetopo.pdfIn PDF document text
    • http://poverkavoda.website/97051795907kolt2.pdfIn PDF document text
    • https://cdn.sqhk.co/betewulo/frhiOjj/zukob.pdfIn PDF document text
    • https://sikenobavusemel.weebly.com/uploads/1/3/2/6/132682861/zesaru.pdfIn PDF document text
    • http://vebuwovivulab.mygamesonline.org/cause_and_effect_essay_writing.pdfIn PDF document text
    • http://bexukavinawexov.mygamesonline.org/babafowopijo.pdfIn PDF document text
    • https://razejegunejedad.weebly.com/uploads/1/3/1/6/131636834/mujekago-dejaneg-nagogabebaloxa.pdfIn PDF document text
    • https://cdn.sqhk.co/dikulodut/2Sjjiff/ravensburger_puzzles_for_sale_in_south_africa.pdfIn PDF document text
    • https://cdn.sqhk.co/dutedape/Thewhc7/historic_home_restoration_services.pdfIn PDF document text
    • http://justiciaforjustice.com/14732005842q60be.pdfIn PDF document text
    • https://pawagidi.weebly.com/uploads/1/3/1/1/131164052/dabasose.pdfIn PDF document text
    • https://pudodogefelareb.weebly.com/uploads/1/3/1/6/131606347/9061094.pdfIn PDF document text
    • http://derapom.iblogger.org/64329214836.pdfIn PDF document text
    • https://wopatozobaw.weebly.com/uploads/1/3/2/6/132682171/sejuzanakezelara.pdfIn PDF document text
    • https://cdn.sqhk.co/vogigoda/9qEihje/answer_promptly_synonym.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/30975850072.pdfIn PDF document text
    • http://julizut.rf.gd/wugotanagemuloroxodex.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/cursive_alphabet_handwriting_worksheets_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/1120177684.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_off0000cf6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF6A 5200 bytes
SHA-256: 0330579bce8602875aefc8ebd2277c021a28a9886c9f44d4a207d06c385c05df
font_01_sfnt_off0000e122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE122 10608 bytes
SHA-256: a7ce7960da36cc454f7ed0b7ddb461f4f8199753d5bc68ff22dd7dd58fbb30c7

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