Malicious PDF — malware analysis report

Static analysis result for SHA-256 02cb0b8ddaad9d6a…

MALICIOUS

PDF

78.3 KB Created: 2021-06-29 02:25:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 382cf52b9cd545f2bca7f44f41a8972f SHA-1: 6f1c7f2f7326d988613a8ad7d84c4793b92b25ed SHA-256: 02cb0b8ddaad9d6a75276b4fe48f51d2a7e15956cc4587aa092ab8c73c4004b8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm for phishing or malware distribution. The presence of external URI heuristics further supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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 https://wastran.ru/uplcv?utm_term=find+the+area+of+the+largest+triangle+that+can+be+inscribed+in+a+semicircle+of+radius+r+unit PDF link annotation
    • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a04efc58e0d---31381622397.pdfIn PDF document text
    • https://pui-vital.ro/msg_media/file/33528660536.pdfIn PDF document text
    • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/47c21cacf57089245281f287cb3fe9c6/xoxakesi.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f3bcc585b7---vimituxokirekejatun.pdfIn PDF document text
    • http://moristas.com/userfiles/files/89524573068.pdfIn PDF document text
    • https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/48443374995.pdfIn PDF document text
    • http://artgraf24.pl/userfiles/file/95837650768.pdfIn PDF document text
    • https://audreyheselmans.com/_files/file/voranevijaroxozasanaturet.pdfIn PDF document text
    • https://aawyx.com/sites/default/imageuser/file/xujepumulati.pdfIn PDF document text
    • http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16085e984c4f8d---63641767644.pdfIn PDF document text
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a7076def1c4---mobaranumas.pdfIn PDF document text
    • http://scoutpate.com/userfiles/file/nuzaviw.pdfIn PDF document text
    • http://reelproductionshd.com/userfiles/file/87473837440.pdfIn PDF document text
    • https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/usdegr1s7ng3tihgje7utega17/wowejomawozu.pdfIn PDF document text
    • http://ajisushionline.com/uploads/files/lamebed.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/708438ea872ec19037f1411a7fb30210/nimujarebifera.pdfIn PDF document text
    • http://mwflower.com/upimagesfile///82088171967.pdfIn PDF document text
    • https://wecareu.net/ckfinder/userfiles/files/86747967065.pdfIn PDF document text
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a2746fbdd7b---62849178842.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b04c985e709---pivemuvizezimi.pdfIn PDF document text
    • https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/f64cc06c92da907c500c63fdf103320c/pudukumoj.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bdffe206837---81962875824.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB594 11140 bytes
SHA-256: fb7066110c572691b3405a55ed4ed6d802e6b46d96163a89bb9e8f0bd7db4cbf
font_01_sfnt_off0000cf23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF23 16156 bytes
SHA-256: 15bdb3869d8d4458aad361551f68459b5691bbaf699be9bec01cb82de0a2cecd
font_02_sfnt_off0000e49f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE49F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off0000fcb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCB1 16560 bytes
SHA-256: 81e091e87891e2ba6fa2a54a26c1e80d8e15d8805a066a0047faf73cf19ae666

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