Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec2d1e2d6274e0e…

MALICIOUS

PDF

93.4 KB Created: 2021-06-30 04:08:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: b6360c00005a889225a6b5b388ca4f24 SHA-1: 286d59f94837b1c56a6db851e04282d1ab48500b SHA-256: 9ec2d1e2d6274e0e962a84a3295be17bd1a33d0ac016a6bea4341ff8f3249dad
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is a common technique for executing malicious code. Several heuristics indicate the presence of malicious links, including those pointing to compromised CMS upload storage and link farms on disposable hosting. The ClamAV detection and ML classifier further support the malicious nature of this file. The embedded JavaScript likely serves to download and execute a second-stage payload from one of the identified URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://standdominica.org/files/files/suvigamebapokabozopabeb.pdf In PDF document text
    • https://flardochform.se/userfiles/file/burimurulepaximudo.pdfIn PDF document text
    • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/7kagrf1tna6tn2e7dfs4uit4oc/ninapewumi.pdfIn PDF document text
    • http://extracam.es/app/webroot/arxius/file/lufojabele.pdfIn PDF document text
    • http://osteriadelcampanile.com/userfiles/files/36672164924.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160bd93041c84a---zipadebajag.pdfIn PDF document text
    • http://1137.jp/app/webroot/js/ckfinder/userfiles/files/tegufokine.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/b7c96jd6t4njis4hbeoe7m3v44/15692440701.pdfIn PDF document text
    • http://morethancars.nl/uploads/edytor/file/porumirujonavo.pdfIn PDF document text
    • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/aadf76acb5b00f2578665dc4a70de024/65766353789.pdfIn PDF document text
    • https://flyags.com/editorResources/file///18132967034.pdfIn PDF document text
    • http://oreade-breche.fr/userfiles/file/meximuruxatinunujeliw.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607da2c51885c---mepiwulopo.pdfIn PDF document text
    • https://ready4use.ru/uploads/files/gowoketonipasini.pdfIn PDF document text
    • http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607f61d40623a---kitokovelidotasuleduruvez.pdfIn PDF document text
    • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b99941425b1---fateb.pdfIn PDF document text
    • http://imi.vc/upload/files/32654716007.pdfIn PDF document text
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/glfcao8qmilq2t8634hk3btuo6/15857406250.pdfIn PDF document text
    • http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6ed568739---xenejofuzumodalogujulasab.pdfIn PDF document text
    • https://aronabritcan.com/userfiles/file/mosususizokuwitiviwo.pdfIn PDF document text
    • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160aa36b0ea555---82483658872.pdfIn PDF document text
    • https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/faa3bfcb3e88beb8a38c6cac925cbe00/votaxo.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/49726793323.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=oliver+dowden+familyPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BA7 17260 bytes
SHA-256: 3464402eba25693188586834541dd5d3e833285e71915d98ccb76c2b4cdd44e6
font_01_sfnt_off00013893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13893 10540 bytes
SHA-256: 158be25bde4c38e1d0fceef9201a8b8928cda6fb9095b26e72577e4f2c6ee257
font_02_sfnt_off0001509b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1509B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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