PDF malware analysis — malicious · 32afb75c10e7f1f7

MALICIOUS

PDF

81.7 KB Created: 2021-09-15 12:34:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23

MD5: 206a46183363ff1d9795828d3181a8b8 SHA-1: d94acd5813c064ce0c89331620245ff4cedff249 SHA-256: 32afb75c10e7f1f7d7fbe74a8e4d8774821f3a03bc754a30f6683a66d7d576b1

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many embedded URLs pointing to potentially compromised or disposable hosting. While no scripts were explicitly extracted, the nature of PDF exploits often involves embedded JavaScript for malicious actions.

Machine Learning

Nyx PDF Classifier malicious score 0.9975

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://jmclimatizacionhvac.cl/images/subidas/file/poxovusizenavuw.pdf In PDF document text
- http://legalinet.eu/userfiles/files/vojuwebowalazaxel.pdfIn PDF document text
- https://gemma.lucien-sv.info/uploads/files/6141b3ce301d1.pdfIn PDF document text
- http://abcgsgeds.friendship-match.com/upload/files/63736725029.pdfIn PDF document text
- https://parisnordmedical.fr/docs/file/32619589496.pdfIn PDF document text
- https://foundationkuzmanov.com/files/77987713730.pdfIn PDF document text
- https://promptcorporate.com/ckeditor/ckfinder/userfiles/files/16928596450.pdfIn PDF document text
- https://nakatarikaszel.pl/app/webroot/userfiles/file/tefumekexaxujogusizetak.pdfIn PDF document text
- http://bolt-go77.com/fckeditor/userfiles/file/lotoselijixudogipilijepa.pdfIn PDF document text
- http://klenderbio.com/upload/files/xosop.pdfIn PDF document text
- http://furnitura-syndicat.ru/ckeditor/ckfinder/core/connector/php/uploads/files/2140692499.pdfIn PDF document text
- http://american-security-inc.com/assets/ckfinder/userfiles/files/wojugunajajud.pdfIn PDF document text
- https://florissantdesign.nl/docs/Image/file/gafazitajokoja.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/tclj0dau78vc6q7vql60t8m5a5/27332526175.pdfIn PDF document text
- http://quetthe.com/upload/files/jarajar.pdfIn PDF document text
- http://mictrogiang.com/userfiles/files/jivosipujowuruzasomidoxa.pdfIn PDF document text
- http://pixel-pro.ru/upload/file/pesotig.pdfIn PDF document text
- http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/diwokegogasewupux.pdfIn PDF document text
- http://futurepoolandspa.com/ckfinder/userfiles/files/nuxejekamojew.pdfIn PDF document text
- http://rs-entp.com/upload/file/xaluvesevevamelotewore.pdfIn PDF document text
- http://imapbook.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/masegixav.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/161413dc9bd210---92556188124.pdfIn PDF document text
- https://kodcomputers.ro/2664/uploads/64881607985.pdfIn PDF document text
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef34b03162---54905601256.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613569a6a4ad4---43110492117.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=credit+card+generator+apk+downloadPDF 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_off0000dbcf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDBCF	10728 bytes
SHA-256: `702d3f389a8a83128718c798c3af8fa736215d7999cd43fb8db3f5f1d1c6a71c`
`font_01_sfnt_off0000f46f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF46F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00010c81.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10C81	17044 bytes
SHA-256: `ba66133823cfaf8e641b8124e9694c7d98fbb87547ff092a33dacffeda85988b`

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