Malicious PDF — malware analysis report

Static analysis result for SHA-256 75ba2ead36f81985…

MALICIOUS

PDF

48.5 KB Created: 2021-10-03 20:58:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 749fdf3b8db6fba3f1af890b39234b97 SHA-1: fbe354c86433e28c100b34bc779162a4b0707c8e SHA-256: 75ba2ead36f819850beb75d6d651f8f90a6e3b672c99a2a61cc747cfbdff1aeb
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating it functions as a link farm. It contains numerous embedded URLs pointing to other PDF files, suggesting a campaign to distribute malicious content or manipulate search engine results. The primary attack vector is likely spearphishing attachment, leading to exploitation for client execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7448

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
  • 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 http://thegioichuyendong.info/app/webroot/upload/files/73541731486.pdf In PDF document text
    • http://sys-svinding.dk/userfiles/file/jitowogumuwuwoxalixiwiba.pdfIn PDF document text
    • https://am-system.eu/ckfinder/userfiles/files/80994371603.pdfIn PDF document text
    • http://www.siphonicflowmandiri.com/upload/files/segevumifumekivefibigugew.pdfIn PDF document text
    • https://dudikom.pl/userfiles/file/makusogumerugifomepobiba.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/pui0318nmthdv7br73ikdqqud6/vupowojozawinisafore.pdfIn PDF document text
    • http://kargiskola.ge/myadmin/ckeditor/ckfinder/userfiles/files/soxowatizusakodemojure.pdfIn PDF document text
    • http://kd-council.com/upfile/files/resalerap.pdfIn PDF document text
    • http://tumakuruvoice.com/tumkurvoice/ckeditor/ckfinder/userfiles/files/53631715187.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/161486b12ea411---12100479176.pdfIn PDF document text
    • https://kaparatt.com/images/File/26945356097.pdfIn PDF document text
    • http://inter-travel.hu/_user/file/fuvutukexepilelojinita.pdfIn PDF document text
    • https://manenshop.com/upload/files/35881190816.pdfIn PDF document text
    • http://88cpap.com/userfiles/files/83177632394.pdfIn PDF document text
    • https://www.znackakvality.info/files/tunufuxonifagubi.pdfIn PDF document text
    • http://shceping.com/upFile/photos/2021-9/file/92378435315.pdfIn PDF document text
    • http://bunny888.com/ckfinder/userfiles/files/4472924804.pdfIn PDF document text
    • http://incomingmakedonia.com/files/files/bitasubudiwajuzukozafez.pdfIn PDF document text
    • http://ketphatthinh.vn/upload/files/76951352773.pdfIn PDF document text
    • http://amongelite.com/ci/userfiles/files/lotopebufuwojes.pdfIn PDF document text
    • http://affectif.ro/data/Image/file/jalomutajeloxomul.pdfIn PDF document text
    • https://optimustelecoms.com/ckfinder/userfiles/files/97906635370.pdfIn PDF document text
    • https://dukumanis.com/contents/files/bofijagaluzem.pdfIn PDF document text
    • http://bkm-market.net/userfiles/file/tiwud.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=cryptogram+numbers+to+lettersPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.