PDF malware analysis — malicious · 87c9d34814f4b5b6

MALICIOUS

PDF

96.7 KB Created: 2021-09-24 05:15:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16

MD5: 099c418c8ebf4461775b44df1c4e71c1 SHA-1: 0504334ff7d5cf4d6cb786fbde59b65f29a50237 SHA-256: 87c9d34814f4b5b6dbf4ff66ea089bedda95f6368590e9f0de18a18183f7fe1f

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing lure. It contains numerous embedded URLs, many pointing to disposable domains, and one specific URL is designed to redirect to a link farm related to 'skin fortnite generator'. The document body is heavily obfuscated, but the presence of external URIs and the link farm heuristic strongly suggest a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9965

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
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://rjpexport.com/files/muxolulagafatetezujev.pdf In PDF document text
- https://gamma-electronics-eg.com/userfiles/files/53540594213.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613005c7e3fef---kesikowisatewed.pdfIn PDF document text
- https://natyabio.com/uploadfiles/ribujozevolemiviwuka.pdfIn PDF document text
- http://fecirturizm.com/resimler/files/42067852992.pdfIn PDF document text
- http://aisne.proximeo.com/ckfinder/userfiles/files/17100970759.pdfIn PDF document text
- https://asesoriagade.com/app/webroot/files/files/vikeguruxu.pdfIn PDF document text
- https://commonwealthsportsawards.com/userfiles/file/zamalit.pdfIn PDF document text
- https://wcfkenzi.com/ckfinder/userfiles/files/2802338249.pdfIn PDF document text
- https://harom.ro/files/file/jukuzuto.pdfIn PDF document text
- https://people11people.com/uploads/File/79783421199.pdfIn PDF document text
- https://rdw-wolf.de/backend/ckfinder/userfiles/files/vebonogofaduwovaxedidoj.pdfIn PDF document text
- http://www.ez4parcel.net/upfile/files/2021/09/15/xutojudanitifolubuge.pdfIn PDF document text
- https://cezartravel.hu/userfiles/file/fagapulilagelezigemuzebi.pdfIn PDF document text
- http://aqcorth.specialty-match.com/upload/files/fenetegivimevisenak.pdfIn PDF document text
- http://mweb.cz/images/file/86844637949.pdfIn PDF document text
- http://karthikeyanjayaram.com/userfiles/file/vujupunawipaxejor.pdfIn PDF document text
- http://www.frank-diagn.hu/userfiles/files/pumorotudadu.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/l6ugnhrferficdltgh9l83vtj4/zabivarexosilife.pdfIn PDF document text
- http://flixgolf.com/ckeditor/ckfinder/userfiles/files/wewawozopuwupimeg.pdfIn PDF document text
- https://whatshoulditcostme.com/userfiles/file/78213386128.pdfIn PDF document text
- https://interstudy.net/userfiles/file/giletazimojolomowewane.pdfIn PDF document text
- http://telegid.tv/userfiles/files/7348581001.pdfIn PDF document text
- https://zlato-stribro-investice.com/upload/files/29831370184.pdfIn PDF document text
- https://rimsball.com/ckfinder/userfiles/files/kuzujesalopoz.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=skin+fortnite+generator+ps4PDF 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_off000111b2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x111B2	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off000129c4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x129C4	19276 bytes
SHA-256: `0c57b905903d94cde763656aba6ae639c9881a8ed6113f9b8a5699318ae1f21e`
`font_02_sfnt_off00015bfd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x15BFD	10732 bytes
SHA-256: `ba49410988f32a6f2397071dd846e77035c624bd475cca64963084abffdd8c20`

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