PDF malware analysis — malicious · f99cdb5ce2fe2a6b

MALICIOUS

PDF

87.9 KB Created: 2021-07-25 08:52:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13

MD5: fe6beed00500e8ff2f49345d9f8f9980 SHA-1: bc43951391e12da473364435d9ca8a347cec0aff SHA-256: f99cdb5ce2fe2a6b76097ed655049dd0c3eb1b6ca9fda5b8bb7bf4ec9fc995c8

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9993

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 http://mckeoughfamilyreunion2021.com/clients/b/ba/baf9e6b347377fae0abe5a87436fc4cf/File/jigoburo.pdf In PDF document text
- http://affordableadobe.com/ckfinder/userfiles/files/80439836143.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/k6g407711cpdu8n9rt9dvjl451/golem.pdfIn PDF document text
- http://turagent007.ru/userfiles/file/koxedinonuxigewigaroje.pdfIn PDF document text
- http://commsoft.nu/demo/ktb/wsmbilder/files/63063471323.pdfIn PDF document text
- https://murtenhof.ch/userfiles/files/58797785187.pdfIn PDF document text
- http://pokemom2.com/uploads/files/pagixupupoxifez.pdfIn PDF document text
- http://permanentnimakeup-brno.cz/userfiles/files/2581953290.pdfIn PDF document text
- http://dges.in/userfiles/file/20598172059.pdfIn PDF document text
- http://monkey-do.net/userfiles/file/94029647771.pdfIn PDF document text
- https://doublehair.center/upload/ckfinder/files/2383837435.pdfIn PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16077830a9904e---26030821575.pdfIn PDF document text
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed40c1e190---kuzotiwokasusakuv.pdfIn PDF document text
- http://bhk-aindling.de/userfiles/files/70464836919.pdfIn PDF document text
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/9f0b27db72edd97ed2ccd50880ebb83d/61348885691.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16071d2c2a7c54---30570313966.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dfe10e0823---40198936173.pdfIn PDF document text
- http://chinajnbt.com/images/upload/File/dizatimep.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160886b00457a4---nabivoratena.pdfIn PDF document text
- https://houstoncoinshow.org/FCKeditor/file/nelovudodotupusupo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=how+to+get+free+redeem+code+for+free+fire+todayPDF 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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f34f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF34F	17236 bytes
SHA-256: `10dffc8447b2fd1175fdab1fc5b158e9ab0c2587a4d5de5658441bee98decba7`
`font_01_sfnt_off00012021.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12021	10692 bytes
SHA-256: `d69662b577a218b9bcb97b465df630ecbd4eb566818c2db74c7e96a9643f25c0`
`font_02_sfnt_off0001388c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1388C	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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