PDF malware analysis — malicious · 3f24e3294cc29c87

MALICIOUS

PDF

90.9 KB Created: 2021-08-03 13:53:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12

MD5: fdf9cf7529d79bfa129914769b1fe236 SHA-1: e76b7a15d856edf0f8bf31f758eca0677526873d SHA-256: 3f24e3294cc29c87f15fcee01754bdf211e7bc2d0a3e1657cdf92c8f35342783

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm with multiple URLs pointing to compromised WordPress upload directories, suggesting it is used for distributing malicious content or phishing. The presence of embedded URLs and the nature of the link farm indicate a likely attempt to redirect users to harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9907

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/16076f26b0d6b8---37600063586.pdf In PDF document text
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080c7ceb4757---zapes.pdfIn PDF document text
- http://ingenermarket.ru/userfiles/78575371213.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b5bc24fe5---76281260521.pdfIn PDF document text
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b56f2225dc4---repitolulopibuse.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16087c1734ca17---bovixugo.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1608341e7367ce---88506088008.pdfIn PDF document text
- http://oilmachineydy.com/d/files/nusadipalafozasudalu.pdfIn PDF document text
- http://constantcontinuity.com/membership/data//files/zexefebitimilo.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607592dc2a423---toluvigibalibevaji.pdfIn PDF document text
- https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/f4rdpofnlorga5pce2uut9fgal/51952049610.pdfIn PDF document text
- http://kcde.kr/userfiles/file/redivuxexanujekodijiloju.pdfIn PDF document text
- http://activesolutionelectric.com/images/file/86381988765.pdfIn PDF document text
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/o4dhrtd2s3e3mjb8jtfi6i4j13/30795894199.pdfIn PDF document text
- http://dejede.com/userfiles/file/14439157865.pdfIn PDF document text
- https://smsenerji.com/resimler/files/77359182675.pdfIn PDF document text
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/vr2dutcalr7tqltda2hui82e9a/5857450534.pdfIn PDF document text
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/kf5iiv2hpibnpe8a8d7ra2tiir/tixegunerelefo.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd091a32c2---nifeve.pdfIn PDF document text
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f8a0d49cdba---jawadalupagekinedamenuz.pdfIn PDF document text
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/55fde29125bb3a0caf6cbb7550f5e552/4133328108.pdfIn PDF document text
- http://meteosputnik.ru/userfiles/file/dizon.pdfIn PDF document text
- https://securityguardsupply.org/php/uploads/file/12952527992.pdfIn PDF document text
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/16om3lvlllekcsvpbgrisi29c1/22646746144.pdfIn PDF document text
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e89a3c990c1---56971113777.pdfIn PDF document text
- https://haysalon.com/public_html/userfiles/file/wajetagurakalivi.pdfIn PDF document text
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc241ea211---jenuvawibebanel.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=ai+inteligencia+artificial+filme+completo+dublado+onlinePDF 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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000dcdf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDCDF	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000f4f0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF4F0	17348 bytes
SHA-256: `511cbfeab376985b89b79cd65837411433649eca7ae53a793128837655542081`
`font_02_sfnt_off00010f08.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10F08	20372 bytes
SHA-256: `5301d1c6bbba50fc243fd117d73c13c50b66d05132e91efb601dd4328e4dda6f`
`font_03_sfnt_off000140f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x140F6	11016 bytes
SHA-256: `973b624c35eb116b8006dcfb3f196f059a01a39000f7c8810796ec408db566bd`

Open this report in the interactive analyzer, or submit your own file for analysis.