PDF malware analysis — malicious · 5f7590f9780efd4e

MALICIOUS

PDF

61.3 KB Created: 2021-03-17 05:30:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 9a89c5d076d718aff24e3d15fb7d99e4 SHA-1: d13d08368bf2e59aa1dee19474810397cd00b5c6 SHA-256: 5f7590f9780efd4e7c7bfde5bbacd8a33045d6e0d42a84ff1140af510c3a613f

212 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning attempt. One of the primary links redirects to a known malicious domain, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support the malicious nature of this file.

Machine Learning

Nyx PDF Classifier malicious score 0.6478

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
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://yafferge.ru/award?keyword=noida+building+bye+laws+pdf In PDF document text
- https://cdn.sqhk.co/tipekafomube/Gcjbagj/dragon_raja_characters_age.pdfIn PDF document text
- http://hdsamara.ru/vagojuforagerazalilol3pvuc.pdfIn PDF document text
- http://soul-felt.com/what_written_safety_programs_are_required_by_osha6iu0e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413361/normal_603ea60429dba.pdfIn PDF document text
- http://skout.tech/briggs_and_stratton_17.5_hp_engineyu9jg.pdfIn PDF document text
- https://cdn.sqhk.co/kinanekoxo/eheJ7ig/mejub.pdfIn PDF document text
- https://cdn.sqhk.co/totarujined/Q3T9jcZ/does_opera_browser_for_android_have_vpn.pdfIn PDF document text
- https://cdn.sqhk.co/puvubuzu/YK7QifT/easy_marketing_plan_template.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393208/normal_5ff0626c4e172.pdfIn PDF document text
- https://cdn.sqhk.co/xomatujod/jcZifjh/santorini_april_weather_2020.pdfIn PDF document text
- http://devgame.design/100_hits_rock_jukeboxubcls.pdfIn PDF document text
- http://smilex.club/statement_of_fitness_for_work_template_ukrnrkt.pdfIn PDF document text
- https://s3.amazonaws.com/xefejevife/91415025931.pdfIn PDF document text
- https://s3.amazonaws.com/dosalapasenow/29314640645.pdfIn PDF document text
- https://s3.amazonaws.com/pujirageg/atmosphere_albums_free.pdfIn PDF document text
- https://s3.amazonaws.com/dazovosugev/88982115005.pdfIn PDF document text
- https://b3079848-b07e-4d89-9244-05dfa5dd91fe.filesusr.com/ugd/3ab5ed_2b7040f94d734cdb9fda75f43cc0e040.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/pirofopafu/87942925744.pdfIn PDF document text
- https://945b3f91-9c76-4178-be32-f0dab3cfe2c6.filesusr.com/ugd/8d5d69_4fc7301b18b04381bbb731b2c123f0ac.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jeromisixinolib/57359403911.pdfIn PDF document text

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