PDF malware analysis — malicious · 3dd9a8074f0a0d4c

MALICIOUS

PDF

82.9 KB Created: 2021-09-21 04:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-25

MD5: 89aa860e1e7c8094f5efe23faf6a407c SHA-1: 03c5c0c0cce923a61aeb45584e8d78fef417e2b2 SHA-256: 3dd9a8074f0a0d4cb879990dfd516a69ad049914897e30276cf2eba8786fbce6

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9955

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://huntic.ru/uplcv?utm_term=fastest+pdf+reader+android PDF link annotation
- http://goddesshair.net/upload/users/files/90950308511.pdfIn PDF document text
- https://menokatea.in/ckfinder/userfiles/files/41120983384.pdfIn PDF document text
- https://ciar.vn/uploads/image/files/vetosenu.pdfIn PDF document text
- http://bebsulmare.com/userfiles/files/filowimalagaxaj.pdfIn PDF document text
- https://hkbca.org/UploadFiles/file/20210906235249105.pdfIn PDF document text
- https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/760aeabefc4b038f8703c585ddf8ee5f/1756223647.pdfIn PDF document text
- https://ensegun2.com/ckfinder/userfiles/files/15783174806.pdfIn PDF document text
- http://myucpb.com/userfiles/file/wenitoleve.pdfIn PDF document text
- https://venusnvs.com/userfiles/file/gemagijenifokenapelu.pdfIn PDF document text
- https://abcoegypt.com/userfiles/files/95066551856.pdfIn PDF document text
- https://srsatta.com/ckfinder/userfiles/files/16947849506.pdfIn PDF document text
- http://engcaphone.com/_UploadFile/Images/file/tinujepogumewutofokasix.pdfIn PDF document text
- https://bem-sa.com/img/file/rawuteduxuvaxekaj.pdfIn PDF document text
- http://saddabro.com/userfiles/file/takir.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/37841881716.pdfIn PDF document text
- http://escritacontabilidade.net/fotos/news/file/wawugixuxavajomek.pdfIn PDF document text
- https://elemonbg.com/Files/File/61209479255.pdfIn PDF document text
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/161481de01a0f3---50126773654.pdfIn PDF document text
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/161404d265400e---16553624681.pdfIn PDF document text
- http://busto-wl.gattinonimondodivacanze.it/themes/userfiles/files/22855022476.pdfIn PDF document text
- https://ibeguiristain.com/userfiles/files/mugofezuvewuposuzek.pdfIn PDF document text
- http://karlsbach.de/userfiles/files/lodunikiboz.pdfIn PDF document text
- https://shiksha24.com/userfiles/files/wanamedixipuxojib.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/89d2e9d6b68099da0b5c6e439c43c1c1/86960747972.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_off0000df00.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF00	18160 bytes
SHA-256: `e459347bb8eecba067dc7282d336228fa089e9d7b9950c77bb66115f1ecf2836`
`font_01_sfnt_off00010ea1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10EA1	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off000126b8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x126B8	10424 bytes
SHA-256: `59fc0887ef7924c0f315847928aee1b1477d5fdbfbcdf6d9a9f7623f61ed0b6d`

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