PDF malware analysis — malicious · e959f6077f55c088

MALICIOUS

PDF

88.5 KB Created: 2021-06-27 14:04:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16

MD5: c625b4bd8aebb20ab5b66e2d5a56a270 SHA-1: 64f27eda938ae413be72af85df290797dac0883f SHA-256: e959f6077f55c088cb3da53b74a44d9dca25c2bdc3b4ad5f17d18b40695d517e

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous external links, many pointing to compromised or disposable domains, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a link farm designed to redirect users to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9835

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://2440027.ru/upload/file/ranafelalejupip.pdf In PDF document text
- http://www.cerel.eu/images/wyswig_images/file/25703192108.pdfIn PDF document text
- http://kotolantopeni.cz/file/57529313059.pdfIn PDF document text
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/b8318a0d0c27be1ae49d605722bc7747/fuwizefoverarawuvesigu.pdfIn PDF document text
- http://dzbnf.com/upload/file///38361242765.pdfIn PDF document text
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bb3dc94864d---59751415585.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bca4744a2e4---96526131681.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160820a44c1dc1---todotipuxifenexufunigev.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090de963153d---jelefuze.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/q53ajdhr13v63msm01pq34eh7o/66617220578.pdfIn PDF document text
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092492786b8b---62664156462.pdfIn PDF document text
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/30faa716203cb3f0605b043ce368e40f/60275808438.pdfIn PDF document text
- https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/8545497040d32f7a485ffc0846e66f5a/dowekinezowete.pdfIn PDF document text
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c07dc38f645---junewexuxi.pdfIn PDF document text
- https://bodegoncriollo.com/userfiles/file/jokiwapadogozi.pdfIn PDF document text
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc7088098f---keravuruwewajenetor.pdfIn PDF document text
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/057facad930c6351568bcc50d5ea6949/19001747786.pdfIn PDF document text
- http://makinsushi.com/uploads/files/73752827670.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082bf72e237c---mofezipogep.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/ea962d61cea13acb221148b346911f11/5241400905.pdfIn PDF document text
- https://transport-vehicules.fr/userfiles/file/bapigidab.pdfIn PDF document text
- https://designclarf.it/file/1212630998.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ccfe2b0cbbf---masuwudedaxitodaz.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce0e3e659e2---wasekofopevamifenaruso.pdfIn PDF document text
- http://vds-construct.pl/userfiles/file/88429698792.pdfIn PDF document text
- http://mp-journal.com/media/file/10825398361.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=m+words+in+dictionaryPDF 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_off0000f929.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF929	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0001113b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1113B	17016 bytes
SHA-256: `b4434d1debfa1a46daeb8831fc105bd83ca796a87695d5aec522587efc97c63f`
`font_02_sfnt_off00013d35.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13D35	10380 bytes
SHA-256: `e3e6508577d5c3f6c55e43cd01bed62514135efeabe0f3421f6b8efd220f32e9`

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