Malicious PDF — malware analysis report

Static analysis result for SHA-256 140003228038052c…

MALICIOUS

PDF

73.5 KB Created: 2021-05-25 07:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 0ec01c6f04f49500e66a91e84b204bbc SHA-1: 9276ef57a7cfecb6b823530e2828d80ce6dbf070 SHA-256: 140003228038052c68a5161e5acc871a018887a0d9c0f2518f20c04613a3ae1f
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 WordPress sites or disposable hosting, suggesting a phishing or malicious redirection scheme. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to lure users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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 http://www.hangmandigital.com/files/file/wijanidawofasotajibesa.pdf In PDF document text
    • https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984cf34459b---84372900947.pdfIn PDF document text
    • http://unseenadventure.com/userfiles/file/novivizudugupilepis.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160807239438da---magigerelinebixifibe.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/046fe85a4bad7ae54fe5eee609a6579e/12466711246.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/38b2c743885acc2b88f7a4b0f4e4c105/22694638792.pdfIn PDF document text
    • https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/d5e4385a38d06a495441c6aa717e6308/gimarole.pdfIn PDF document text
    • http://cariboohose.com/userfiles/file/73217708462.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f13ac19064---24351562122.pdfIn PDF document text
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/6f0c9f9f9f59b754e17ccce64cd9370a/67829156779.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099c2cec533a---jufomudezapoje.pdfIn PDF document text
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/65f2bbfe34cc66068f0fff51a8a50634/tutibetila.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609879e026924---3531730012.pdfIn PDF document text
    • http://www.aportecnica.com/imagenes/editor/file/kuradivolixib.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087593fe5de5---kitodazilawekifixinisudaf.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/rhc3lch96l3tk6cn85ediba7ic/35910251414.pdfIn PDF document text
    • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071c084edf0f---watoneso.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=ok+google+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25BF%25D0%25B5%25D1%2581%25D0%25BD%25D1%258E+%25D0%25BA%25D0%25BE%25D1%2580%25D0%25BE%25D0%25BD%25D0%25B0%25D0%25B2%25D0%25B8%25D1%2580%25D1%2583%25D1%2581+%25D1%2583%25D1%2585%25D0%25BE%25D0%25B4%25D0%25B8+%25D1%2581+%25D0%25BD%25D0%25B0%25D1%2588%25D0%25B5%25D0%25B3%25D0%25BE+%25D1%2580%25D0%25B0%25D0%25B9%25D0%25BE%25D0%25BD%25D0%25B0PDF link annotation
    • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/e8f92c61671ceb6b7c7a5d8f23686c68/81599323781.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA9 6368 bytes
SHA-256: efe3b3c6e4a8c9cb8a5b394e2b89bf293e91a92c0601f37d33e90cbc51bf5a17

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