PDF malware analysis — malicious · cd7d68b90a2d95de

MALICIOUS

PDF

73.4 KB Created: 2021-10-14 00:27:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: 5783cf2ea47dc662a95df2504c386656 SHA-1: 9b8666edb5177175d96b415d5fdd1ed63026d66e SHA-256: cd7d68b90a2d95def0620588552c5a202d81047c840e0bd8d4b603a09ecbc6d6

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9956

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://constantcontinuity.com/membership/data/files/bobexunuwagukedipezuxip.pdf In PDF document text
- http://domosplast.hu/files/file/vujewedomelisexam.pdfIn PDF document text
- http://gursakaryahukuk.com/images/file/kirakikaxadurizupozo.pdfIn PDF document text
- http://taeguektour.com/FileData/ckfinder/files/20210928_50F329443899A1C3.pdfIn PDF document text
- https://ymvii.com/admin/upload/files/33025911018.pdfIn PDF document text
- http://www.lebedosapartotel.com/data/yukle/files/wipizobeje.pdfIn PDF document text
- https://eownauto.com/uploadpic/files/garuzatatenakixov.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1615b2319c864a---12040406381.pdfIn PDF document text
- http://wx-bm.cn/upload/ckimg/files/202109131904155027.pdfIn PDF document text
- https://magicdiscoradio.hu/userfiles/file/90781900119.pdfIn PDF document text
- http://tingchucontrol.com/Uploadfiles/files/lizizigegizogurisanumisu.pdfIn PDF document text
- http://gorsilawfirm.com/userfiles/file/relukobok.pdfIn PDF document text
- http://nuklearmedizin-amro.de/userfiles/file/veriwewegexukanurod.pdfIn PDF document text
- https://aarushimukhwas.idealviews.com/userfiles/files/kudebirubezezijenafe.pdfIn PDF document text
- http://micronforgacsolo.hu/UserFiles/file/rifiverurujupiz.pdfIn PDF document text
- https://radio-clipa.ro/userfiles/file/bevadogagikupekigug.pdfIn PDF document text
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1615904c54e339---mifonigigovupazudijixes.pdfIn PDF document text
- http://rockbond-aac.com/id-admin/fckImages/file/16526874990.pdfIn PDF document text
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143a1af72d5d---97812307484.pdfIn PDF document text
- https://uppersanduskyrotary.com/cms/files/File/ketozajififiw.pdfIn PDF document text
- https://www.supremecaravans.com.au/application/third_party/ckfinder/userfiles/files/19384213585.pdfIn PDF document text
- http://thuephotocopytaihanoi.com/upload/files/37498715143.pdfIn PDF document text
- http://trunghungplastic.com/luutru/files/luzomogawi.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/7xhmvLXWVJc/uplcv?utm_term=chemistry+review+worksheet+answersPDF 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_off0000bd2e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD2E	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000d545.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD545	10716 bytes
SHA-256: `85cca8f1ffdac8daed3f45d0240a830f1703e464ddafce2e589c7939846a77b1`
`font_02_sfnt_off0000edd0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEDD0	16500 bytes
SHA-256: `74e58c10ef92e08b43c637abc1bf5ee04d00f6e45f3b765bcd28d369307ab4f5`

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