Malicious PDF — malware analysis report

Static analysis result for SHA-256 07cc6cc59aa45958…

MALICIOUS

PDF

56.1 KB Created: 2021-06-04 20:47:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 420f5d09250db1c7e1ea04502b534451 SHA-1: 77d4bf5d8cd668587be6387b8886f6df28d087af SHA-256: 07cc6cc59aa459581a21622a8ef5e333a64bfa1b2001bcdcef5ce75e35876f31
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF contains numerous links pointing to compromised WordPress sites, indicating it functions as a link farm for phishing or malware distribution. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were directly extracted, the nature of the links and the PDF structure are indicative of exploitation techniques commonly used to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8411

Heuristics 5

  • 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
  • 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://laborke.ru/uplcv?utm_term=what+is+main+clause+and+subordinate+clause PDF link annotation
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609f085f379e5---woluvoboroj.pdfIn PDF document text
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/5185e6f4a217ff8af1881572bdb50d8d/soravulifekomodojikajom.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/60f2eq4acl7o87u0k03d8eb0v7/40670875925.pdfIn PDF document text
    • https://biodent.ro/m4fm_files/m4news/ck-uploads-files/32938798227.pdfIn PDF document text
    • http://jjinline.org/file_upload/file/wesefenijesoros.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/8b16858cc5e68bf2b9531f27c3ddf2e2/66007967299.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e26b4dcf5---wazimepufojituzexoriligi.pdfIn PDF document text
    • https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/fca522042a44a292479f51aa6895ac6d/tigofugagefo.pdfIn PDF document text
    • https://davaocarrental.com/images/file/jipiveb.pdfIn PDF document text
    • http://ajtoablakcentrum.com/_user/file/43778515546.pdfIn PDF document text
    • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/up0iich98d262um5au0824qb0i/sewesedufuni.pdfIn PDF document text
    • https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/5cd623d8536fcab0d4972dfb341fe8be/72021426111.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609af6773123f---sodasugonuxof.pdfIn PDF document text
    • http://taskentcompany.com/userfiles/file/12402806072.pdfIn PDF document text
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b13097bb48f---kodulipof.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD108 5332 bytes
SHA-256: 2bbecd9c3153c3bbaa4d9f323d9f79df38ab08a5a039341273227138b8708f8b

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