PDF malware analysis — malicious · 537f5156e468293f

MALICIOUS

PDF

74.6 KB Created: 2021-09-22 09:23:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24

MD5: 1c5084790d1f32f2707eda6f03478e75 SHA-1: 04d131fe9953e1a7ed00ba183d9082517fe247fd SHA-256: 537f5156e468293ff876f0c8ab3e1c592db82680d3827a6c28e2c5ee7f3ab423

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF contains embedded JavaScript and multiple external URIs, indicating an attempt to redirect the user to malicious websites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. The embedded JavaScript is likely used to facilitate the redirection or exploit vulnerabilities.

Machine Learning

Nyx PDF Classifier malicious score 0.9976

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
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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://pixomot.ru/uplcv?utm_term=how+to+gain+friends+and+influence+others+pdf PDF link annotation
- http://website-design-company.in/dev3/damodar/ckfinder/core/connector/php/userfiles/files/mevoloferobe.pdfIn PDF document text
- http://mtkshop.com/images/uploads/file/lemagisegukotedikefori.pdfIn PDF document text
- https://247christianity.org/fckeditor/userfiles/file/564861636481630975818.pdfIn PDF document text
- https://247christianity.org/fckeditor/userfiles/file/808710542621630515938.pdfIn PDF document text
- http://chekeeh.ir/basefile/chekeehir/files/72210131236.pdfIn PDF document text
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613493ed54fab---27963656528.pdfIn PDF document text
- http://hotelbellevuepalermo.com/userfiles/files/rawajisabol.pdfIn PDF document text
- https://stmpallet.com/ckfinder/userfiles/files/15601456944.pdfIn PDF document text
- http://sydjpg.com/images/upload/file/20210918_043102_177.pdfIn PDF document text
- https://luxesystem.site/js/ckfinder/userfiles/files/biwawuxovu.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613682a70d7c7---3953224960.pdfIn PDF document text
- http://kronospan-mofa-hungary.hu/editor_up/mesalagafi.pdfIn PDF document text
- https://atputasbazes.lv/images/userfiles/files/6397670627.pdfIn PDF document text
- http://wahluenfty.com/userfiles/gapojosulofoke.pdfIn PDF document text
- https://www.totalblissbeauty.com.au/application/third_party/ckfinder/userfiles/files/rekemekeditov.pdfIn PDF document text
- http://mg001.cn/upload_fck/file/2021-9-1/20210901120643993496.pdfIn PDF document text
- http://azizolace.cz/images/file/28406484653.pdfIn PDF document text
- http://luchetti.it/userfiles/files/22741147370.pdfIn PDF document text
- https://ezastupitelstvo.sk/editor_uploads/system/files/17349779798.pdfIn PDF document text
- http://geoass.eu/userfiles/files/75981999282.pdfIn PDF document text
- http://beganijewellers.com/ckeditor/ckfinder/userfiles/files/60485225285.pdfIn PDF document text
- http://www.fd.ntou.edu.tw/ckfinder/userfiles/files/85509169637.pdfIn PDF document text
- http://clinicaveterinariagoitese.it/userfiles/files/71283009078.pdfIn PDF document text
- 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_off0000c038.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC038	11076 bytes
SHA-256: `09c4a3687d903b450ac0fd70fccbcf83e7825d565912e8773d04e331e4485b0f`
`font_01_sfnt_off0000d9c7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD9C7	16512 bytes
SHA-256: `cd1db74a7620963bc0366be84d09efd79f3485ea1b83a9701a259cc493def2f9`
`font_02_sfnt_off00010448.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10448	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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