Malicious PDF — malware analysis report

Static analysis result for SHA-256 9093f014ff54c702…

MALICIOUS

PDF

73.5 KB Created: 2021-09-21 01:05:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 7251bee2e7bd95e9f2184621f5be8278 SHA-1: 31ad95a9e1c499acfdb27b79d86b7268c68f6df2 SHA-256: 9093f014ff54c70256ff52c471a11cb5ca1d3eb71456c6fab824ce7f62c371f3
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised websites or are structured as link farms, a common tactic for phishing or distributing malicious payloads. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7658

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
  • 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://cructi.ru/uplcv?utm_term=ionic+radius+trend+in+periodic+table PDF link annotation
    • http://bargiel.com.pl/ckfinder/userfiles/files/78977197470.pdfIn PDF document text
    • https://horgaszvelem.elelmiszer-hazhozszallitas.hu/ckfinder/userfiles/files/89175363665.pdfIn PDF document text
    • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613d970b3f4ae---gidiru.pdfIn PDF document text
    • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144c3ba5fc12---wikuwimebugojediwo.pdfIn PDF document text
    • http://cataga.de/beta/files/file/86434710489.pdfIn PDF document text
    • https://interativacorretora.com/fotosempresa/files/wemuwedowakap.pdfIn PDF document text
    • http://cbcom.fr/ressource/site-image/files/tesufuni.pdfIn PDF document text
    • https://www.jnvhardoi.org/ckfinder/userfiles/files/44006973132.pdfIn PDF document text
    • http://sbkf.org/files/files/rilalikoka.pdfIn PDF document text
    • http://struttur-arch.it/userfiles/files/tazijedawitinakutapof.pdfIn PDF document text
    • https://arerp.kr/data/file///6459706713.pdfIn PDF document text
    • http://elhammagazine.com/ckfinder/userfiles/files/sufexezurojazujapenal.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/161328bdfe0f8e---93380081882.pdfIn PDF document text
    • http://woori-tour.kr/FileData/ckfinder/files/20210914_87D6D0F3F4E3B674.pdfIn PDF document text
    • https://associazionedynamica.it/uploads/file/22365018204.pdfIn PDF document text
    • https://accidentmatters.com/ckfinder/userfiles/files/16436387523.pdfIn PDF document text
    • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/940433fe586b155c08cb8522c1fb1d5d/juboxefum.pdfIn PDF document text
    • https://swagath.co/new/ckfinder/userfiles/files/wurusepukumasexolu.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16136e84350fec---zawuzaz.pdfIn PDF document text
    • http://uforoi.com/app/webroot/uploads/files/galevowugimo.pdfIn PDF document text
    • https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613c29b585a23---mivawaxuv.pdfIn PDF document text
    • http://ty6600.com/userfiles/file/xufikewiluz.pdfIn PDF document text
    • https://a2designbg.com/userfiles/file/xopesag.pdfIn PDF document text
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146e3d8d39c3---sojekipux.pdfIn PDF document text
    • http://aokunoil.com/ckfinder/userfiles/files/guzopofiniwopuvuvew.pdfIn PDF document text
    • http://architectureanddesign.it/userfiles/files/dekivamiwifotepikef.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D7 17376 bytes
SHA-256: a099fb77487099684d36350d15864452ae5f02e0a4d673ee0690c948556ba828
font_01_sfnt_off00010ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EC2 10696 bytes
SHA-256: 3a7c11e731814cd75f8fb8a947fb4b499484bc10925ab7a955736d791a1d3aae

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