Malicious PDF — malware analysis report

Static analysis result for SHA-256 552928fa9e94dd66…

MALICIOUS

PDF

76.6 KB Created: 2022-03-25 20:38:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 584c9de9657609813188331d7c2fca91 SHA-1: 7475d7513bf2304a1a7337cc279359bf6772662b SHA-256: 552928fa9e94dd6626f5ea698d0915de46ce56c955aa9a6c93bb501c833608db
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://fecuq.co.za/YmrXLWy8?keyword=redes%20cisco%20ccna%20security%20pdf PDF link annotation
    • https://nepajomawowezuw.weebly.com/uploads/1/3/4/4/134462508/vamipurololuxug-bumap.pdfIn PDF document text
    • https://kuzapulekoxiror.weebly.com/uploads/1/3/2/6/132681507/nokoromebezotikatu.pdfIn PDF document text
    • https://pozojemiveze.weebly.com/uploads/1/3/4/6/134690114/8189108.pdfIn PDF document text
    • https://renexiba.weebly.com/uploads/1/3/4/8/134895383/gorasi.pdfIn PDF document text
    • https://segagewemavovus.weebly.com/uploads/1/3/0/8/130874565/7238083.pdfIn PDF document text
    • https://jopuwijexanubuf.weebly.com/uploads/1/3/0/8/130874501/8504399.pdfIn PDF document text
    • https://fejagirizow.weebly.com/uploads/1/3/4/5/134525681/3048922.pdfIn PDF document text
    • https://piguvedulo.weebly.com/uploads/1/3/4/7/134724556/8407396.pdfIn PDF document text
    • https://lesitoziperitij.weebly.com/uploads/1/3/4/3/134381346/jawusorilunix-tejexafa-vupusolepavulo-rifunurepasoko.pdfIn PDF document text
    • https://nisudine.weebly.com/uploads/1/3/1/4/131454656/zitajozig.pdfIn PDF document text
    • https://xudodezepemixol.weebly.com/uploads/1/3/1/3/131398406/1436f59.pdfIn PDF document text
    • https://zesalefol.weebly.com/uploads/1/3/5/9/135994098/b4d0dd36.pdfIn PDF document text
    • https://bevazamosip.weebly.com/uploads/1/3/5/3/135345421/sazuzud_wogunukiv_xefit.pdfIn PDF document text
    • https://sobolone.weebly.com/uploads/1/3/0/7/130775045/kodawaj-zopisede.pdfIn PDF document text
    • https://gijepunudadolow.weebly.com/uploads/1/3/4/4/134497403/ribaluligotib-sutiva.pdfIn PDF document text
    • https://xuzabuteke.weebly.com/uploads/1/3/1/3/131379980/tominodepibagiloj.pdfIn PDF document text
    • https://gigewabiwijezu.weebly.com/uploads/1/3/4/5/134576475/legepila.pdfIn PDF document text
    • https://jiwenetitorod.weebly.com/uploads/1/3/5/3/135325203/0ca4acbeff95d3.pdfIn PDF document text
    • https://josodurug.weebly.com/uploads/1/3/5/3/135394296/4610722.pdfIn PDF document text
    • https://lamivorimu.weebly.com/uploads/1/3/5/3/135330715/seganufu.pdfIn PDF document text
    • https://siwizapetodid.weebly.com/uploads/1/3/4/0/134041585/riped_risilewabesu_biwezedisuwawo_fuwemunu.pdfIn PDF document text
    • https://jofukesor.weebly.com/uploads/1/3/3/9/133999831/zejovunuzopatag_sofoborur.pdfIn PDF document text
    • https://wuwesojelure.weebly.com/uploads/1/3/5/9/135973580/1232391.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000c464.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c464.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC464 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000db03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB03 18328 bytes
SHA-256: 35ed52609d13ad544b3b93aebe85b5451a80051827a7fe633265736c46a12ed2
font_02_sfnt_off00010a21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A21 10824 bytes
SHA-256: e8fa17a12ed8938b2a7ee7c0c5d296892c5ef3901261c2af3a586a3a75e700bc