Malicious PDF — malware analysis report

Static analysis result for SHA-256 47300e4180c1138b…

MALICIOUS

PDF

88.8 KB Created: 2021-09-03 19:56:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: bb3817a9fdca2a1ed9357841f77f6576 SHA-1: 12f8ec0eb0990e77428f365f64929be63018d02c SHA-256: 47300e4180c1138bdbad1f7398d97f2c9c4fe253780a93733d07b402342f1766
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of an invoice lure further supports the phishing intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://crysiq.ru/uplcv?utm_term=conditional+expectation+pdf PDF link annotation
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b464768ce59---94830597626.pdfIn PDF document text
    • http://splhardware.com/UploadFile/file/2021072523073073499.pdfIn PDF document text
    • http://pinzimoniofiumicino.eu/userfiles/files/82767176330.pdfIn PDF document text
    • http://sweetbasketsbyjackie.com/clients/864293/File/74428812420.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d615f0cad---xufewikejagula.pdfIn PDF document text
    • http://kerama.altrodesign.eu/ckfinder/userfiles/files/fawidorabuviwojivojaselat.pdfIn PDF document text
    • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/1d10a3d3ebc6ca3a9634236b02705e14/75849334374.pdfIn PDF document text
    • http://area100impianti.it/userfiles/files/30730821150.pdfIn PDF document text
    • https://mdteam.se/ckfinder/userfiles/files/wodebisepisib.pdfIn PDF document text
    • http://prmakeup.com/Image/files/biderusel.pdfIn PDF document text
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb7ab70409---dozawitusalixeki.pdfIn PDF document text
    • https://okvino.it/file/64044203727.pdfIn PDF document text
    • https://alamansyria.com/userfiles/file/75775716215.pdfIn PDF document text
    • http://tieclangman.com/Images_upload/files/7767936007.pdfIn PDF document text
    • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f2a701532d---batuvebezivanozer.pdfIn PDF document text
    • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f959d565d2---vudore.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/16131b2647b527---56825760267.pdfIn PDF document text
    • https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/50bbr93v2r1tu31rufaohl16sp/95450677813.pdfIn PDF document text
    • https://europartner2.pl/uploads/tipori.pdfIn PDF document text
    • http://studiorestagno.eu/userfiles/files/55941793388.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f81b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF81B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001102d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1102D 17608 bytes
SHA-256: 57d89d7fcee15d5bfb75cdc8d1e049ed0be7dc08129ea922515c09d547508d4a
font_02_sfnt_off00013dcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13DCC 10476 bytes
SHA-256: 64fea7f0fbe4aeb2fd469dc9e4d7490e2908dc1bf39703f7557e5b6253c5640c

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