Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9edd29b60490701…

MALICIOUS

PDF

45.9 KB Created: 2021-05-31 21:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 5325177e536c3e36768808fac975536d SHA-1: e7537b152a3e47d0f1e4cd88edf9375163a1a1ce SHA-256: a9edd29b60490701774e8ae3fadbe671160eaa49f16482901a6fc2d65239a096
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm or SEO manipulation tactic. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or distributing further malware. No scripts were extracted, but the PDF structure itself is indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9327

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://rowusebejaron.weebly.com/uploads/1/3/1/6/131637242/5134003.pdf In PDF document text
    • https://zemijawa.weebly.com/uploads/1/3/1/0/131070152/f101d08.pdfIn PDF document text
    • https://towizitubozabo.weebly.com/uploads/1/3/5/4/135400713/wikeludekated-vetewomage-nadufomiwufisiz-minakejowexemi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386849/normal_606e30ae30d34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450256/normal_600e5d043a489.pdfIn PDF document text
    • https://budamasut.weebly.com/uploads/1/3/4/9/134903336/786887.pdfIn PDF document text
    • https://jewigilimeb.weebly.com/uploads/1/3/1/4/131408849/ff135b80bb44381.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476011/normal_601bbb02615c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378628/normal_605e0f9243a14.pdfIn PDF document text
    • https://fejufawos.weebly.com/uploads/1/3/4/3/134328201/jozevavaziv-zijom-sudoxanono.pdfIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/jJyWpsOf3IE/wb?keyword=resumen%20trabajos%20de%20investigacionPDF link annotation
    • https://uploads.strikinglycdn.com/files/690f8203-fdf6-40f0-a176-58ee598ad282/xajofi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85988597-a74a-478b-b311-565533045190/which_accent_appears_in_the_world_dcembre.pdfIn PDF document text
    • http://papoxuva.pbworks.com/f/how_to_give_a_swedish_full_body_massage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74f76614-46f4-4b28-87d8-3366ecc2810e/marvel_stickers_hero_mix_apk_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/685c7aa1-3149-404d-a610-c821e1957a01/what_are_10_characteristics_of_myths.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fddc8bd5-322e-4639-a813-9192d53b8d37/2996098246.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5fc3489-8a30-4dc9-b531-c01a2b42b175/46193510510.pdfIn PDF document text