PDF malware analysis — malicious · 3ddd5fd800d9b259

MALICIOUS

PDF

129.0 KB Created: 2021-12-04 08:58:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-25

MD5: 3311320ca990258bfb6eeda8a20106d2 SHA-1: 63297ca275c3c8a0e931738bf2246522897e1cb8 SHA-256: 3ddd5fd800d9b259958d64c48f4d4813d854de5a332f8e4dc55b07389239782d

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9886

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://websitesample.in/atlantis/assets/ckfinder/userfiles/files/85775337072.pdf In PDF document text
- http://spzn.narewka.pl/narewkagmina/userfiles/file/9000573383.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/ni2okpuiehtf7ab00e5vf957p6/91853717350.pdfIn PDF document text
- https://panama4d.com/contents/files/653684338.pdfIn PDF document text
- http://fratellibeninca.com/images/file/xugisipel.pdfIn PDF document text
- http://liily.jp/upload/file/20210905223235.pdfIn PDF document text
- https://hotelangela.hu/userfiles/file/zeworimizival.pdfIn PDF document text
- http://cuanhuaabshanquoc.vn/files/sasuxisixofazazo.pdfIn PDF document text
- http://nattuvaartha.com/assets/ckfinder/core/connector/php/uploads/files/44348706173.pdfIn PDF document text
- https://tivirtual.com/userfiles/file/pijitixesivotopebuwoxo.pdfIn PDF document text
- https://yilmazlift.com/userfiles/file/rawoxagidisilopewuf.pdfIn PDF document text
- https://www.pollackmihalyiskola.hu/ckfinder/userfiles/files/57349441508.pdfIn PDF document text
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619de24e61a08---22831884906.pdfIn PDF document text
- http://hoilhpnqbthanh.com/upload/file/72807315394.pdfIn PDF document text
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16183b5fa65108---73545380597.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16155ebfc41d7f---62502572501.pdfIn PDF document text
- http://pc75.net/upfiles/file/1631846598.pdfIn PDF document text
- http://3dtechgroup.com/uploads/image/files/sozodogijuk.pdfIn PDF document text
- https://tfpac.com/nbloom/fckuploads/file/sejojinuvixag.pdfIn PDF document text
- http://icmasistemas.com/userfiles/files/zuwanenakevo.pdfIn PDF document text
- https://netiko.fr/img/Data/file/13939765695.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/D9plVHj2VOU/uplcv?utm_term=verbo+essere+spagnolo+pdfPDF 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_off000196c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x196C9	16416 bytes
SHA-256: `cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336`
`font_01_sfnt_off0001ad6d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1AD6D	10592 bytes
SHA-256: `f67a9295cc13fde26a302e8a21f71d97f5c6eacee09d25894790db8570cd0eac`
`font_02_sfnt_off0001c54c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1C54C	18864 bytes
SHA-256: `b2df7231e7d811057413f1e0de1871575c3f7a73624691fb89f4202c9fe104dc`

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