PDF malware analysis — malicious · e84eb32b66794e4f

MALICIOUS

PDF

67.6 KB Created: 2021-02-27 00:39:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20

MD5: 288b341b53ea07c14710bb9009915ae7 SHA-1: 96c077018a2625a87edece0ab5ce6312370c5d15 SHA-256: e84eb32b66794e4fb63231c85690941f455f808f14f83ef3b676226e9701f84b

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to disposable domains and appear to be part of a link farm. This behavior, combined with ML and ClamAV detections, strongly suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9704

Heuristics 4

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
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://leonvi.ru/aws?utm_term=briggs+and+stratton+vanguard+23+hp+carburetor PDF link annotation
- http://lovechat24.club/redbird_simulator_manualki7x7.pdfIn PDF document text
- https://wumaluruporemad.weebly.com/uploads/1/3/0/9/130969386/revateti.pdfIn PDF document text
- https://serarabasujuz.weebly.com/uploads/1/3/1/6/131606617/vabenurigivumazu.pdfIn PDF document text
- http://discout.online/978339176721e4zv.pdfIn PDF document text
- https://fapudunaga.weebly.com/uploads/1/3/0/7/130776769/pekofexe.pdfIn PDF document text
- http://trynutra.shop/325723502623kykh.pdfIn PDF document text
- http://obsluzhivanie-kompyuterov.moscow/teracopy_pro_activation_key4sxpc.pdfIn PDF document text
- http://kernig.pro/displayfusion_key_crackq6n2t.pdfIn PDF document text
- http://hdvideo.design/cbt_for_social_anxietyavcih.pdfIn PDF document text
- http://nashremont.site/linalatenomalaris2hxj.pdfIn PDF document text
- http://shop-onlinediscount.xyz/lilolezugorazelurov9ms9q.pdfIn PDF document text
- http://rasudilikid.mywebcommunity.org/66676584021.pdfIn PDF document text
- http://leqqurint.online/zesevowabftbuj.pdfIn PDF document text
- http://funseeds.site/pisamijenpb.pdfIn PDF document text
- http://rugegav.mywebcommunity.org/how_to_poach_eggs_in_krups_egg_cooker.pdfIn PDF document text
- http://6gusevshop.website/what_movie_did_bruce_lees_son_die_inrkvj2.pdfIn PDF document text
- http://bloomwithdeanna.com/gabuzagisalaxiwedkrfdw.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ed36.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED36	5848 bytes
SHA-256: `5172ac1e2cf11f3d4514e4ec0e979fed7e4892b67509b76c346c28539d76a8a9`

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