Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e060afaa9f90c3c…

MALICIOUS

PDF

42.8 KB Created: 2021-09-25 19:46:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: cdd26a8720a9a522f36787f8b6a7be23 SHA-1: c2116b0fa9beeca70c6368cc9e605be231b097d7 SHA-256: 6e060afaa9f90c3c40d4f5aa34479c61cf0b7cb503634633c6d707be5d6e1717
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains a single image and minimal text, typical of a screenshot designed to hide clickable links. The document hosts a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6964

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://bepcongnghiepphuchung.vn/userfiles/file/mewurarorunelezurawatu.pdf
    • https://tekstilkentrehber.com/upload/ckfinder/files/93349856054.pdf
    • http://nazycakes.com/userfiles/file/fojatorarino.pdf
    • http://nikolalepojevic5.com/multimedia/file/96803494523.pdf
    • http://objets.immoweiss.lu/userfiles/files/fijuto.pdf
    • http://saltokisport.com/uploads/files/75320034874.pdf
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/tasn7fplr8bg7g9kqhnsr6ni25/58111444384.pdf
    • http://casier-a-bouteilles.com/file/52996156181.pdf
    • http://stolizstekla.ru/userfiles/file/64214444601.pdf
    • https://china-glass-mosaic.com/userfiles/files/20210923_115955.pdf
    • http://bloomx.com/sites/all/sites/bloomx.com/files/28612157442.pdf
    • http://cuatro-pr.org/sites/default/files/file/44865290091.pdf
    • http://www.logistiekverbeteren.nl/ckfinder/userfiles/files/99625818261.pdf
    • https://nazrabilisim.com/calisma2/files/uploads/fopikunafepabubuluro.pdf
    • http://festacreativita.org/userfiles/file/38032153639.pdf
    • http://szentdorottyapatika.hu/files/gawejilitoluli.pdf
    • http://griesvoegwerken.nl/UserFiles/file/tobimokugevutolarena.pdf
    • http://alacarte-design.de/userfiles/file/jerexuxotuko.pdf
    • http://nyitotthaz.hu/userfiles/files/67674175270.pdf
    • http://davidhammerstein.org/userfiles/file/tinugozumukanit.pdf
    • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/9644d622123918bdd15a8088891a2d81/72811982695.pdf
    • http://chamdure.com/DATA/files/titiditiwobidereso.pdf
    • https://wsbtitan.com/images/file/40772685850.pdf
    • https://durgabas.coop.np/ckfinder/userfiles/files/25598904934.pdf
    • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/68fbd5311ae6bf9148c6877c9994052b/lukubipaxavofofi.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=dj+khaled+ft+justin+bieber+lyrics