Malicious PDF — malware analysis report

Static analysis result for SHA-256 93cbede833b4deef…

MALICIOUS

PDF

64.7 KB Created: 2022-09-11 10:12:43 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 5.15.4) First seen: 2026-06-01
MD5: f20c5bb2050833eafd8eca26c8f928b0 SHA-1: 1be5d8d445424f0448182368b7571fdd46bb51e9 SHA-256: 93cbede833b4deef94ab68051b362403142d13e2a07a3e09599751ad5f23968b
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 http://eelruxe.com/wb3?utm_term=intermediate%20accounting%20chapter%201%20pdf PDF link annotation
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1629ef49e3dd6c---92436197675.pdfIn PDF document text
    • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/47f4c5ef5de0b0bf16af162cfdd60b67/33490928359.pdfIn PDF document text
    • http://guide-eq.com/userfiles/file/20220804114618_dveltm.pdfIn PDF document text
    • https://xibokesobapud.weebly.com/uploads/1/3/0/7/130776239/041d118.pdfIn PDF document text
    • https://jezinuva.weebly.com/uploads/1/3/4/8/134869759/b773a.pdfIn PDF document text
    • https://kevugekakizuxo.weebly.com/uploads/1/3/4/4/134481001/tajisanisekexov.pdfIn PDF document text
    • http://citlak.de/admin/UserFiles/file/zezenoxilex.pdfIn PDF document text
    • http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/gojojusalan.pdfIn PDF document text
    • https://actualite.autopromo.com/fckResources/file/fotuvikufilunofedetubaro.pdfIn PDF document text
    • http://www.slappedtogether.com/editoruploadfiles/file/38436625945.pdfIn PDF document text
    • https://mifanupomiseri.weebly.com/uploads/1/3/2/6/132681757/6066962.pdfIn PDF document text
    • https://gizivivovulab.weebly.com/uploads/1/4/1/7/141758445/wukixo_wagekevazeduxe_pizivuzus_ponuvezosipile.pdfIn PDF document text
    • http://vino-kamelot.cz/images_upload/files/9168703513.pdfIn PDF document text
    • http://gamax-motor.cz/data/dokumenty/lufapulugagek.pdfIn PDF document text
    • https://dasajusowerav.weebly.com/uploads/1/3/1/6/131637273/5496946.pdfIn PDF document text
    • https://fabomewov.weebly.com/uploads/1/4/2/0/142018701/zalejabule_ziguwiw_fagus.pdfIn PDF document text
    • https://zilevesijejekek.weebly.com/uploads/1/3/4/3/134367579/d8da1c585.pdfIn PDF document text
    • https://shiokuda2.com/contents/files/zepoxokeratuju.pdfIn PDF document text
    • https://wefigoga.weebly.com/uploads/1/3/4/0/134041661/7317507.pdfIn PDF document text
    • https://cl-metalparts.com/d/files/kimubuvodag.pdfIn PDF document text
    • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/315c09b066dd57babe8798d0a7bfbde7/12495213639.pdfIn PDF document text
    • http://puisan.ru/uploads/file/nugafesuvu.pdfIn PDF document text
    • http://xn--12cm8caae5d9a0a0a1dxk6dd.com/user_img/files/55611034892.pdfIn PDF document text
    • http://www.bitstream.comIn 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

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_off0000b099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB099 10040 bytes
SHA-256: c3f19b2a72969fe8c721552e8ad2c9ff592f983e7050c5f10ec86a3e136743ee
font_01_sfnt_off0000c8b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B3 16668 bytes
SHA-256: 53b96107ff40abd98976ab0bcb160a005b6cf761d3d1b479cc807ef381a0b162

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