PDF malware analysis — malicious · 5e67cac03d7e40f6

MALICIOUS

PDF

68.1 KB Created: 2021-04-03 02:23:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9509fc2b15886aded98bc8b3bd69b980 SHA-1: b19e6b67ce6787fc81a4b528c67de9c44af484f2 SHA-256: 5e67cac03d7e40f65f1fe4c3ead8a6a4c604d0dcf20cf55f119536d115fc62ee

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which are SEO-optimized, suggesting a link farm or phishing attempt. The ClamAV detection and ML classifier also indicate malicious intent. The document body, though heavily obfuscated, contains keywords related to downloading a book, which is likely a lure to encourage users to click on the malicious links.

Machine Learning

Nyx PDF Classifier malicious score 0.6002

Heuristics 4

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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=madhyamik+physical+science+book+pdf+free+download
- https://cdn.sqhk.co/xevowuto/ij1zgfM/zogonizirufuzezobowi.pdf
- https://cdn-cms.f-static.net/uploads/4367279/normal_600e5f10f31d1.pdf
- https://cdn-cms.f-static.net/uploads/4417329/normal_6018f28cca0ad.pdf
- https://static.s123-cdn-static.com/uploads/4367275/normal_5fee8936ce14b.pdf
- https://cdn.sqhk.co/xeloxilava/uZdVRjb/58485355573.pdf
- https://cdn.sqhk.co/tinulafi/hfggGje/tusefipuwipupeluta.pdf
- https://cdn.sqhk.co/tedubifo/jijbcPe/dabafugotinedakivate.pdf
- https://cdn.sqhk.co/rudixika/gkji9gx/75056947831.pdf
- https://static.s123-cdn-static.com/uploads/4501484/normal_60095d76cad55.pdf
- https://uploads.strikinglycdn.com/files/68df8376-f70e-4e14-9f19-e0d261701f92/what_is_a_fine_dining_menu.pdf
- https://s3.amazonaws.com/donake/constitution_bill_of_rights.pdf
- https://299bc67c-4c9a-44ea-852c-18f2d39dca40.filesusr.com/ugd/954c8b_95eaa9f7886544c0856991f1f056cf69.pdf?index=true
- https://uploads.strikinglycdn.com/files/7a2e69ba-b443-4339-9159-6eaed93915d7/99962282177.pdf
- https://uploads.strikinglycdn.com/files/a7f93c8b-395d-48e5-9959-34303ea41d9c/1305734961.pdf
- https://bc881323-2374-4635-a2b7-f126f9929bd8.filesusr.com/ugd/546a35_1b625f013bd34b70b45fa2537202ddef.pdf?index=true
- https://d3826037-6016-486c-99e9-dc41bc666644.filesusr.com/ugd/b81754_12840994f60849acb8926bb73c06ed3d.pdf?index=true
- https://uploads.strikinglycdn.com/files/23cfdaa5-b764-49c4-bc1e-d22f5e8112c5/zoxakumenuxamexobotep.pdf
- https://uploads.strikinglycdn.com/files/8f78fef9-f4bb-46b8-b218-e7247d94315c/xipepitogibi.pdf
- https://uploads.strikinglycdn.com/files/1a087cab-5fc6-4f1e-b7e5-9f8679e6e208/how_do_you_clean_a_masterbuilt_electric_smoker.pdf
- https://uploads.strikinglycdn.com/files/e256553b-d893-404c-916b-927ba74b926f/samsung_smart_care_vrt_plus_washer_error_codes.pdf
- https://s3.amazonaws.com/jivagajamav/acting_terminology_crossword_puzzle_clues_answers.pdf
- https://uploads.strikinglycdn.com/files/a3e6dfb7-736f-45c5-bdd1-1fd2ab6121c4/99686894283.pdf

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