Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e250d9f09de857a…

MALICIOUS

PDF

82.7 KB Created: 2021-06-29 03:42:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 51ce334cf6f911726e7ca5e6e6274d5e SHA-1: 02c6a0e69837829bab84516ddbfb1e2062cb467d SHA-256: 1e250d9f09de857a5e4d25f6dd146895bde208746b55ef8096cbca877fd18dc6
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links, many pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious content or phishing sites. The presence of these links indicates an attempt to manipulate search engine results or distribute malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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 http://idroter.org/userfiles/files/27379592494.pdf In PDF document text
    • http://bazis-expertiza.ru/ckfinder/core/connector/php/files/27533705440.pdfIn PDF document text
    • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/0j68tgvg69srbmtqg8qrnh1jq4/75739807271.pdfIn PDF document text
    • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/rde8tb9ohd3k1lv72nqedsg11k/lajaxuti.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/9eda505bc077a3a7ed8203c7de8d08cb/9412302617.pdfIn PDF document text
    • http://robalton.es/Albums/images/file///94943914608.pdfIn PDF document text
    • https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/204ac4d3ff2a2c562b20d4d8733526c4/refoteko.pdfIn PDF document text
    • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/clnmrhpo6a6hp5v1ilc6nepfcn/lafebezejifipuna.pdfIn PDF document text
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f88685c55f---32612454391.pdfIn PDF document text
    • https://bamor.org/userfiles/file/jinar.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/3e7583f5ffd886afefd159217ca6321d/wivudiziduruwamapaxu.pdfIn PDF document text
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16098987c799c4---48589715948.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d89d6a08837---pupijipakapojat.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce3ee05d6f---xuzafixuro.pdfIn PDF document text
    • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/v4dghhqavq0d02g8pmm4b2t44g/36246795996.pdfIn PDF document text
    • http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608374d5027c6---37563569320.pdfIn PDF document text
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/g0vja509ao8ctjgutae2cftk8g/bimapawupev.pdfIn PDF document text
    • http://tunglamgarden.com/images/fck/file/20957601731.pdfIn PDF document text
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/16080590dd0c45---bizomefirewataxurebowim.pdfIn PDF document text
    • http://travelci.ru/ckfinder/userfiles/files/41465408719.pdfIn PDF document text
    • https://moderator.lt/components/com_mijoshop/opencart/image/data/files/bibufolepamefimi.pdfIn PDF document text
    • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1607a27cc377b6---30852111945.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/01agn2pqck9mn81t1ecnmt34q4/76103763164.pdfIn PDF document text
    • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/l77osqn87p6704ra9vnsf4ravd/sofibozovuwezopijo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=department+of+education+learnership+2020PDF 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_off0000dbac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f3be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BE 18424 bytes
SHA-256: 5276e206236f236420f619cda5f976f6afdec01e0ecda31538b498970baf789a
font_02_sfnt_off00012347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12347 11228 bytes
SHA-256: 0f5121fe65f7cc7672aeb46f548f7733c1f3ed2bb0d1bdc7683dff05f1aebf7f

Open this report in the interactive analyzer, or submit your own file for analysis.