PDF malware analysis — malicious · 2c8e514c4c828e03

MALICIOUS

PDF

50.6 KB Created: 2020-12-21 02:40:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07

MD5: b31141380b895d259642949ecd552de0 SHA-1: ab586f1674f41eddf3f8c8edd92542a0cb89113d SHA-256: 2c8e514c4c828e03bc782ba760694b077ee8275cefbb394ff1c6f5c09eeaed5b

184 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating it is likely a phishing or trojan delivery mechanism. The file contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the overall structure strongly suggest an attempt to lure users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.7011

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 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.
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://trafftec.ru/strik?utm_term=hello+neighbor+act+2+crowbar PDF link annotation
- https://cdn-cms.f-static.net/uploads/4481402/normal_5fafa0bd6550a.pdfIn PDF document text
- https://romagazep.weebly.com/uploads/1/3/4/7/134759296/gudavunitepena.pdfIn PDF document text
- https://pibezenasa.weebly.com/uploads/1/3/1/4/131454503/gumezuxole_begafan_fopib_wavawakinumaju.pdfIn PDF document text
- https://sisebafob.weebly.com/uploads/1/3/0/7/130776599/ea2252.pdfIn PDF document text
- https://kirewigofe.weebly.com/uploads/1/3/4/3/134382955/84441.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a6ef06ef-e02b-4019-9016-9f1180ce9663/zcode_line_reversals.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bad9df20-de91-4a18-abe6-965028620868/46916321005.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/40162786-7771-4146-989e-edbe7666e05b/vagejadipuwelokuzojom.pdfIn PDF document text
- https://s3.amazonaws.com/mamukawaxatali/afl_fixtures.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f9093c9a-a592-4db9-a6cf-9e896c69cc3a/91900102274.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4146b882-5384-40a7-abb1-7215fc8e833c/heiden_watch_winder.pdfIn PDF document text
- https://s3.amazonaws.com/suxiweke/cuddl_duds_fleece_sheets_reviews.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe02643c02f22b9dd3d634/1606287973661/12372702080.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3ca75151-49a8-4bb1-9075-d4cdc1853b0f/to_toss_word_whizzle_answer.pdfIn PDF document text

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