Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a2eac07808e5ecd…

MALICIOUS

PDF

123.4 KB Created: 2021-06-25 17:52:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 19a5c6e4327fa99ce1f306b375896505 SHA-1: 05eb0412666f0be8110b224336ccd19502673f7c SHA-256: 1a2eac07808e5ecde9e1a1437ab7f29136978c4cf9134ba563d176107f87a759
156 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised WordPress upload directories, suggesting it's designed as a link farm to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the structure and URL analysis point to a phishing or downloader attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 6

  • 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.
  • 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://benardoutlite.com/admin/fckeditor/fckdata/file/80781760089.pdf In PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/067a14df93a9b411bf9c63531e18dd5b/fuwupekevifopaxapifubuxi.pdfIn PDF document text
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5145dcb89---lakedevakatujalixe.pdfIn PDF document text
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/hhu6h3cl2cuopgsc0naei3j0s5/19795570750.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/h2m5brfb8u2h380h31ebk80r04/77892110287.pdfIn PDF document text
    • http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/85377e35f58026101a48648bb34ae711/70607617270.pdfIn PDF document text
    • https://xn--80aaijzh9b.xn--90ae/documents/file/kinube.pdfIn PDF document text
    • http://budaikepkeret.hu/uploads/file/32599690257.pdfIn PDF document text
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/e10779c62e503a51435db607ea6d5637/6295900706.pdfIn PDF document text
    • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/7etba0s7agfuhjbvoo7g3755pf/37611741072.pdfIn PDF document text
    • http://barcabianca.eu/upload/file/85902449286.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160aa64f7c93ea---zigiposazijibojinumezodis.pdfIn PDF document text
    • https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/d09cb19d622b347b60316ca75b9b23e3/29454125966.pdfIn PDF document text
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160742c5c57db4---99866048261.pdfIn PDF document text
    • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/8necbanq56hlqvdmiojqgvvpfa/gejesodomoviwik.pdfIn PDF document text
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160910f0ac3764---lepatigokibofubano.pdfIn PDF document text
    • http://xn--h1aaebbkfib4a.xn--p1ai/sadm_files/vowebixukijesunuli.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/972cd5ab8d0b2675b04ee3537a5aa869/daduvorubesojoxaw.pdfIn PDF document text
    • https://lee-trading.tw/archive/upload/files/rowudif.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/7e14776efce683c357c56b74bbdebcea/fefek.pdfIn PDF document text
    • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608e21c4302e0---valowexajakegododaverero.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/i30146mh632ghdqvth4infs947/kiwazapogujesofete.pdfIn PDF document text
    • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/d7f308f7cf2dc7bbab6968368bdc66c0/fizenesegusiketuvot.pdfIn PDF document text
    • http://gld-lining.com/user_img/files/jexuwo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=twin+flame+astrology+synastryPDF 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_off00017eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17EB6 10720 bytes
SHA-256: 1b19befa6a729e6816b517e40ea01beecf9ea97e2d63823bca5948efcd76feb4
font_01_sfnt_off00019764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19764 17916 bytes
SHA-256: ae8586a759eb6d40a250f556d3880a81cd010ea177a15cc74a506be927bd53be
font_02_sfnt_off0001c65e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C65E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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