PDF malware analysis — malicious · e1d1ee1d10bf7786

MALICIOUS

PDF

82.0 KB Created: 2021-02-13 06:47:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bda8a342b6b331a18d816935aa835f80 SHA-1: 5a644ed6751110e6451807fa6d3ca4e010f03fdd SHA-256: e1d1ee1d10bf7786b5aa00f93f0b4ebcdfcce16cc91e90ab87c4f510af43253f

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various websites. The ML classifier and ClamAV detection strongly indicate maliciousness. The embedded URLs, such as https://seumenha.ru/wix?keyword=comcast+xfinity+remote+control+tv+codes, suggest a phishing or SEO-based lure to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://seumenha.ru/wix?keyword=comcast+xfinity+remote+control+tv+codes
- https://nipifofopofeduv.weebly.com/uploads/1/3/4/3/134338269/2921086.pdf
- https://pawizujepus.weebly.com/uploads/1/3/1/6/131637171/3858581.pdf
- http://zobebukore.22web.org/4596780109.pdf
- https://sezijaxafiv.weebly.com/uploads/1/3/1/6/131637080/973f1995a36df.pdf
- https://cdn.sqhk.co/kobewudojuvo/g15jfhg/road_trip_movie_album_songs.pdf
- https://pesawuzopedeg.weebly.com/uploads/1/3/5/3/135327269/4672880.pdf
- http://musc-media.xyz/latest_viral_video_of_girl_2020rw88v.pdf
- https://foretenam.weebly.com/uploads/1/3/4/7/134700633/pedesuj.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://xajumin.epizy.com/javascript_date_methods_formatting.pdf
- http://zevijefe.rf.gd/samsung_wallpaper_hd_1080p.pdf
- http://kotorewijog.epizy.com/angry_birds_go_hack_apk_2014.pdf
- http://dilowopuvuzi.rf.gd/defined_spreadsheet_in_computer.pdf
- http://felawikemuda.epizy.com/fesolozenuxeve.pdf
- http://tidegofavinugaw.epizy.com/83696990518.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00010560.bin` `cf9e43241f4ea29d1199589bc7c931cddaff515ac48f6cb9f4ce8ce13193d3d4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10560	5304 bytes
`font_01_sfnt_off0001175e.bin` `322d84a65aa4fe2711194efbd92d8eb0c70dcf0a7989636393261f8103e57675`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1175E	10332 bytes

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