Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2b155c234b9aeeb…

MALICIOUS

PDF

40.2 KB Created: 2021-09-03 04:32:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 4431e8390402b3c37af2b8c5e180e24c SHA-1: 61ba8b8017804cb7752889bccd47b752c38e784e SHA-256: c2b155c234b9aeeb228aab646da167fafb6d616a34d49065c0e364c23db8d7c0
174 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a phishing lure, including being image-heavy with a clickable action and containing numerous links to external websites, some hosted on compromised CMS uploads. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary attack pattern involves directing users to potentially malicious URLs hosted on compromised sites, likely to deliver further payloads or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9455

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 40 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://pixomot.ru/uplcv?utm_term=bls+aha+pdf+2015 PDF link annotation
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/03ghqfpk0gujlbsdbrp6q0err7/patajolofigezubukosul.pdfIn PDF document text
    • https://activepymes.com/pub/file/70917750628.pdfIn PDF document text
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160cee88c75261---lupumak.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/41146cfc4b8f4aa51614fb4cf26e6f63/95538386888.pdfIn PDF document text
    • https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a9889e76ef5---13810373721.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bddaef98a23---kiziwak.pdfIn PDF document text
    • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bb62254d0b0---rexesubozulodagu.pdfIn PDF document text
    • http://lycee-elm.info/userfiles/file/92821351818.pdfIn PDF document text
    • https://geya99.com/ckfinder/userfiles/files/7287139741.pdfIn PDF document text
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c254a24dbf6---vifipibotasufakixamuwena.pdfIn PDF document text
    • http://music-summer-courses.eu/upload/files/43886287468.pdfIn PDF document text
    • https://hnhaa.com/userfiles/tnejp//files/85284924100.pdfIn PDF document text
    • http://hongpakthai.com/ckfinder/userfiles/files/1409648969.pdfIn PDF document text
    • https://vidaleve.ind.br/ckfinder/userfiles/files/tivux.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160817fe490f6f---28654641085.pdfIn PDF document text
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160da0a41e6433---dinode.pdfIn PDF document text
    • http://tienhasteel.com/app/webroot/upload/files/wobixusobemob.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e530a446a---53843814448.pdfIn PDF document text
    • https://voxel-avocats.fr/uploads/file/In PDF document text
    • http://lahma.pl/_u/userfiles/file/35473339938.pdfIn PDF document text

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