PDF malware analysis — malicious · d3e35abcc4afbb26

MALICIOUS

PDF

68.8 KB Created: 2021-10-04 07:46:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21

MD5: 6fa53158b51a0f6863d2e9427abdee33 SHA-1: 3411a42161a9d9ff0a20e13119ff7ff61f72a69c SHA-256: d3e35abcc4afbb2681477f0ee0a6a07b1727ac554b6934d61a9335b7b26ce63d

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9950

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://inwebjor.ru/uplcv?utm_term=indian+geological+service PDF link annotation
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f008060639---95343973388.pdfIn PDF document text
- https://egyiksem.hu/uploads/file/92993661999.pdfIn PDF document text
- http://skalamatbaa.com/userfiles/file/witavovitu.pdfIn PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614473942993d---futafawoguvexe.pdfIn PDF document text
- http://vigova.vn/Images_upload/files/69432674950.pdfIn PDF document text
- https://ecoquimica.cl/dinamicos/uploads/file/mikirililizo.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/sofalunolufipenubovisupez.pdfIn PDF document text
- http://otestmanager.org/club/data/userfiles/file/20210929021149.pdfIn PDF document text
- http://www.anieliasfx.com/uploads/textareas/file/84478639390.pdfIn PDF document text
- http://dedanskecasinoer.dk/userfiles/file/76544053302.pdfIn PDF document text
- http://finemetal-cn.com/upload/files/66173603010.pdfIn PDF document text
- https://dintek.eu/uploads/file/mogezikujexogudoges.pdfIn PDF document text
- https://idealist.ro/userfiles/file/midurobobawerel.pdfIn PDF document text
- http://toyotacri.com/userfiles/files/60165343244.pdfIn PDF document text
- http://ventilatoryzlin.cz/images/file/tamusiragatiturumesoregal.pdfIn PDF document text
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16137cc6450063---robujawezi.pdfIn PDF document text
- http://olivetheater.com/userData/board/file/nobexez.pdfIn PDF document text
- https://perfecthospital.net/FCKeditor/file/rakaxakijuvidabajokeka.pdfIn PDF document text
- https://majubesar.net/contents/files/newilusufej.pdfIn PDF document text
- https://pastijptoto.com/contents/files/76368609548.pdfIn PDF document text
- http://sunriverps.com/data/editor/file/5024181674.pdfIn PDF document text
- https://losaltos.com/wysiwygfiles/file/lefilozolibezuzidi.pdfIn PDF document text
- http://kammatrans.com/userfiles/files/42797978295.pdfIn PDF document text
- http://progetec.org/userfiles/files/bumoditizukafotemikefox.pdfIn PDF document text
- https://alertsecurity.in/ckfinder/userfiles/files/36534484963.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000b03f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB03F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000c851.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC851	14936 bytes
SHA-256: `7581fc36f29bac5944caa86c77b6102131ad78d95607d7eadf40f64502305aa8`
`font_02_sfnt_off0000ee2f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE2F	10464 bytes
SHA-256: `1ed0331b4902e43ad48844cd773147ece6e5d480cdd8da0bcd0474eb6e501bad`

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