PDF malware analysis — malicious · 65d05ec9480254b7

MALICIOUS

PDF

38.0 KB Created: 2021-03-06 01:45:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18

MD5: b678bb29c7a23a5a98730fff803f3477 SHA-1: 5ea53e87fc18e61f5d1e2c4fd051c615b9c5c2af SHA-256: 65d05ec9480254b75937c6738b281faa8547980e89e268e776c01cf92375a6c4

204 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document is identified as malicious by ClamAV and a machine learning classifier, exhibiting characteristics of a phishing lure. It contains a large number of external links, many hosted on disposable domains, suggesting an attempt to redirect users to malicious content or phishing sites. The primary URL observed is https://kuzutuzo.ru/award?keyword=how+to+service+generac+11kw+generator.

Machine Learning

Nyx PDF Classifier malicious score 0.6842

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
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.
Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE

PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 38 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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://kuzutuzo.ru/award?keyword=how+to+service+generac+11kw+generator PDF link annotation
- https://vamekatowozi.weebly.com/uploads/1/3/0/8/130814347/nateja.pdfIn PDF document text
- http://stassikorskyi.com/bloons_td_5_impoppable_guidekfvxt.pdfIn PDF document text
- https://xibomuwupipufa.weebly.com/uploads/1/3/5/3/135389044/jaduganazuzusebixu.pdfIn PDF document text
- https://bebedukiraf.weebly.com/uploads/1/3/4/8/134885496/6752206.pdfIn PDF document text
- http://nat-fru.space/30471343444eiqei.pdfIn PDF document text
- http://help-feedback-amzn6.xyz/ripanafititazmf03.pdfIn PDF document text
- http://lotsmen.com/bodmas_worksheets_for_grade_47sasq.pdfIn PDF document text
- https://nikudedixipapun.weebly.com/uploads/1/3/4/6/134692686/bedesejijonewo.pdfIn PDF document text
- https://s3.amazonaws.com/juwofuxufijup/forape.pdfIn PDF document text
- https://s3.amazonaws.com/dikobepibelun/52609213915.pdfIn PDF document text
- https://a9f3490c-def6-45ea-9957-aefa341d54bd.filesusr.com/ugd/84b587_823fb105578c472bae6b1bd028095b9a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/dezajok/differential_calculus_made_easy.pdfIn PDF document text

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PDF

Malware Insights

Machine Learning

Heuristics 6

Related samples 8