PDF malware analysis — malicious · aa866120757ccd4a

MALICIOUS

PDF

90.6 KB Created: 2021-08-07 10:32:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06

MD5: 7ef4fc1777438a6ee44a9e73e301d42d SHA-1: e840208f61317c5eb54008f2e437ef1560821fb0 SHA-256: aa866120757ccd4a998e051d3a62ff47e87a798066a72b732d852e064a8d479b

196 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9932

Heuristics 7

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE

Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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://cunningham-reunion.com/clients/7/73/7399477c88ef979e1ad3ac38e42cffcc/File/79282938838.pdf In PDF document text
- http://open.ua/uploads/ckeditor/files/maxapivaduzof.pdfIn PDF document text
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1609ce5493880d---fokazusopesurufulo.pdfIn PDF document text
- http://kco.su/userfiles/file/fagufata.pdfIn PDF document text
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160987fc0b8757---nabudemuzeverudi.pdfIn PDF document text
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608399af0b632---22630259534.pdfIn PDF document text
- https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098a2e5ed62f---61053567220.pdfIn PDF document text
- https://braintreeclinics.com/app/webroot/img/files/kadusivinedefawozitu.pdfIn PDF document text
- http://www.deco-interieure.com/userfiles/file/49890713498.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/6065d1a58e42e9bf95d9b07f8a4320ef/22089359885.pdfIn PDF document text
- https://resonanceacteurs.nl/userfiles/file/bixivadojutotovusuzeso.pdfIn PDF document text
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa420ce12f---68689984033.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160d32b32ebd4b---28899876696.pdfIn PDF document text
- http://vestmorecapital.com/images/epost/22526049918.pdfIn PDF document text
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/5491d74e32c64bb837e3bfba34f5f320/fopolebuxekifasijula.pdfIn PDF document text
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608e9c30c246e---26481134344.pdfIn PDF document text
- http://highlandlynxotic.com/clients/7/73/73cf6ae24f8ea70eb1cbac1dff6b0f9e/File/miguruninegujatipuliteko.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/1e922f8379a71e678d588a9937d6ddf9/45959307756.pdfIn PDF document text
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/9ht26tp21jjld6amsldhloqedq/54089765651.pdfIn PDF document text
- http://stalmost.pl/userfiles/file/7974298117.pdfIn PDF document text
- http://highdesertrent.com/newsite//images/uploads/file/82274229449.pdfIn PDF document text
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/bf7d3a02a7a882f5ccbfde119f8c79d8/lasadinideja.pdfIn PDF document text
- http://lowry-averyreunion.com/clients/c/c0/c0e4e7922159a76f956c19110b7bfeb7/File/48242664791.pdfIn PDF document text
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab2f5355ff5---14141730863.pdfIn PDF document text
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/2bbeb1f20ff1683b53996647576a1a07/94375059053.pdfIn PDF document text
- https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/011f1c1cf8af32aa272e6b3145a02535/75046574938.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=applications+of+metal+carbonyls+pptPDF 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_off0000fb0a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB0A	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off00011321.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11321	10876 bytes
SHA-256: `1c0bf1431e3e250c3afde74697b7599b056656d00497301eb66d5f974ff60de3`
`font_02_sfnt_off00012c1d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12C1D	18052 bytes
SHA-256: `36704b15cac043a7dc2f11be7a557809bdbf8ca46025bba99d9cf085de044f6e`

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