Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e577434d7cd6e69…

MALICIOUS

PDF

67.9 KB Created: 2021-06-18 06:23:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 10942a3aad4f5c2dc7e5787c1b8f438a SHA-1: 108116e74dc057c47406a11292e290de27c952ab SHA-256: 9e577434d7cd6e696001929871dddd370213a831d2f5f2fc14a365080b109106
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7642

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 http://abacusnancy.com/userfiles/file/xezidetokonewafolopo.pdf In PDF document text
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078461aa9bda---lolofizonoxexunafobifuf.pdfIn PDF document text
    • http://altaprecision.com/userfiles/file/jotekexefevawopesojet.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a145f976255---guwudifuleragorugi.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16073786548f4c---vibeb.pdfIn PDF document text
    • http://barrybusiness-crm.com/ressource/devis-photo/files/7577852163.pdfIn PDF document text
    • https://nothingbutsafetyglasses.com/userfiles/file/nozuvafepowaxos.pdfIn PDF document text
    • https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/af7beo4c7vh7vqibgujd3okhro/ropufefevavonivajegixok.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073bec276e29---36241444290.pdfIn PDF document text
    • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/ed67cdq2t0tav8gne2jg5pn1lm/kuteranosib.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd9c8b7879d---jodemomonilolomonib.pdfIn PDF document text
    • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078cccc5c88d---54215902294.pdfIn PDF document text
    • https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/rf7vjiq0a5snvbg52h9bh1k30d/varusekovuzalirabefarusam.pdfIn PDF document text
    • https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/f676756b2db347075176017ddbc55bd9/zubuselutitagiduvotemug.pdfIn PDF document text
    • https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/885e1cf874ca0acadd9dc4598a6400a0/44274599905.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1608fd91b8aa03---dovatimowawogepesazomitu.pdfIn PDF document text
    • https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/85d13bfd466e3338bd0025f789755284/91233965023.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d117b3bc23---bovebunimukazukixem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=cinevez+com+2020+telugu+moviePDF link annotation
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E0 4924 bytes
SHA-256: 2ce2a801ede312ef28f0e1aee74131f05a6ed71455bc759517958eea726ec70a
font_01_sfnt_off0000d6a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A3 24500 bytes
SHA-256: ae7e8e86ddbbda3d353e8ac09ca3e332d10e0571044afac96dba496556f5602e

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