PDF malware analysis — malicious · d3ef27994a7c2b0b

MALICIOUS

PDF

91.7 KB Created: 2021-10-26 19:23:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21

MD5: 713ceac69363e0b0964a7a146cd8f4b7 SHA-1: 49e5ac640d9c94e84aa5e2f5b060cfc60f3173a2 SHA-256: d3ef27994a7c2b0bd72db181c3e8df2edd43e62c5a3fff73bf7e0a56d042b7a8

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9977

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://chaputlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/4436298629.pdf In PDF document text
- http://gps-tw.com/CKEdit/upload/files/58690436263.pdfIn PDF document text
- http://booklandbooks.com/userfiles/file/xelizaxenul.pdfIn PDF document text
- https://apelhijau.com/contents/files/jusesob.pdfIn PDF document text
- http://dailymaydemtien.com/userfiles/files/bogifalovajodafuwi.pdfIn PDF document text
- http://redondoclassicburger.com/uploads/files/taserux.pdfIn PDF document text
- https://rrr71.ru/upload_picture/23381365208.pdfIn PDF document text
- http://stylowa-pss.pl/userfiles/file/58909756059.pdfIn PDF document text
- https://gdaniec.com/upload/files/bedutikenejegavuxok.pdfIn PDF document text
- http://urotunisia.com/uploads/FCK_files/file/lofulifonotepi.pdfIn PDF document text
- https://yodishit.com/uploads/userfiles/file/27546128494.pdfIn PDF document text
- http://hyeminshop.com/DATA/files/46077281678.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16163fc4756f14---maxol.pdfIn PDF document text
- https://vanvoorst.info/uploaded/file/mipefuzososibabag.pdfIn PDF document text
- http://auburn-companies.com/userfiles/files/zatiguvarolisawibide.pdfIn PDF document text
- http://zap-interactive.com/uploads/files/71958161984.pdfIn PDF document text
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/0947a7ca4d2b040d1090fced438ab373/48812844676.pdfIn PDF document text
- http://vangphutai.com/images/uploads/files/21551397426.pdfIn PDF document text
- http://jandenzobv.com/image_uploads/file/wuxinavotilawa.pdfIn PDF document text
- http://liceoadultos.juniorcollege.cl/userfiles/files/38441586235.pdfIn PDF document text
- https://moulindelarroque.com/userfiles/file/ralivuvopukopoleje.pdfIn PDF document text
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616ff481d483d---17160386016.pdfIn PDF document text
- http://feedproxy.google.com/~r/MbOu/~3/23D8k0Ec_6w/uplcv?utm_term=philips+dect+211+manualPDF 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_off0000fd74.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFD74	19352 bytes
SHA-256: `545493ed4cc5520bf07eeb8e1ea880b53c9dd1dfaa90cc8d8e88b16ed4c3b524`
`font_01_sfnt_off00013058.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13058	10832 bytes
SHA-256: `ca90936a82314ef6ae0070c5de887dba0f2917522a9825a20ca09caf012c39cf`
`font_02_sfnt_off00014937.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14937	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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