Malicious PDF — malware analysis report

Static analysis result for SHA-256 f99992a97be83342…

MALICIOUS

PDF

119.2 KB Created: 2021-08-09 04:01:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 61b8ab6cddb5af64661a551c0dcb0491 SHA-1: 4e3ae9ca62064ffafb6106ce38f5d6eb37adf177 SHA-256: f99992a97be833428bcdc4b179b89ac04f333d74f25cd4c715a7b21a54a58a62
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 6

  • 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 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 https://archism.ru/uplcv?utm_term=lignes+pour+%C3%A9crire+droit+lettre+motivation PDF link annotation
    • http://www.europesolidaire.eu/userfiles/files/wujuxitogikufe.pdfIn PDF document text
    • http://dtpokebar.com/uploads/files/19910978109.pdfIn PDF document text
    • http://land89.com/ckupload/files/pitar.pdfIn PDF document text
    • https://mygo.com/ckfinder/userfiles/files/52386598857.pdfIn PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b864d30e4fb---45306568425.pdfIn PDF document text
    • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/ab066aa3a42fe85eaf7fa8ae7ce30836/walitetopalupuxipivotudaw.pdfIn PDF document text
    • https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/6acd121d9916e9e91d14accba4d3a73d/78507477589.pdfIn PDF document text
    • http://atenngo.com/admin/sites/site/documents/57872587449.pdfIn PDF document text
    • http://detikakdeti.ru/img/file/mevenej.pdfIn PDF document text
    • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/c626f2bfc76b35ed0fd211a670d1d1dd/gatufatelukomuxuwor.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160cb07d81abd6---84678968644.pdfIn PDF document text
    • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16102f9e02306d---39558103749.pdfIn PDF document text
    • https://binarbaid.com/public_html/userfiles/file/48069429080.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a698488356---wilipuxulur.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161103db0ab180---86426018008.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607df82dea6f6---zebuwukabezewe.pdfIn PDF document text
    • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/477587b6a28b07e0021608ed7f9350b5/nekokanidekixesezaluf.pdfIn PDF document text
    • https://netwindowvn.com/uploads/userfiles/file/7340416117.pdfIn PDF document text
    • http://toshiba-center.ru/uploads/files/85639033905.pdfIn PDF document text
    • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/19pvfuh4rkp78msml6l946fgb8/mifaludegivaserovitit.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079fba050a2b---tolafiwujijesufoz.pdfIn PDF document text
    • https://eminencesolutions.in/resources/userfiles/file/gelaw.pdfIn PDF document text
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/ec968046550902eede32a2bf5f6354e4/rawatutirenofoneb.pdfIn PDF document text
    • http://guides2alpes.fr/uploads/file/vanef.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 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_off0001689a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1689A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000180b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x180B1 11136 bytes
SHA-256: 66bb889dd895ef46669d3f0c1888887588ea97655ae77f91523a0080afc6114a
font_02_sfnt_off00019a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19A2A 19560 bytes
SHA-256: 1a0bb08352a69c98d81567ea9b3ad9b8c14c83d8684e3ec261ec58696ec9d9e7