Malicious PDF — malware analysis report

Static analysis result for SHA-256 565270313845c8fd…

MALICIOUS

PDF

87.3 KB Created: 2021-08-04 20:20:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 1f7b4a276974456cfae0cc70fe89a707 SHA-1: 33eca9c35cd9e4202e52fa625da114f365cb403d SHA-256: 565270313845c8fd6f0b4d8ad5d1568c68e69467b5036dd0a57db65e7ea3104b
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document functions as a link farm, directing users to numerous potentially compromised websites hosted on disposable domains. The ML classifier also strongly indicated maliciousness, suggesting the PDF is designed to exploit users through these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://devitohomesorlando.com/userfiles/files/676780859.pdf In PDF document text
    • http://rorolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/58117323581.pdfIn PDF document text
    • https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/pi7o9tfrj3vc6h3agglnf2p26m/xasepupupogaka.pdfIn PDF document text
    • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/a13162c4b704ed7c82f4300e62cf7ec3/67552319765.pdfIn PDF document text
    • http://tscyw.net/userfiles/file/20210801070126_pxmdt5.pdfIn PDF document text
    • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5c19b398ba---jazeperakunujugopagudo.pdfIn PDF document text
    • http://vom-ragnaroek.de/uploads/file/virig.pdfIn PDF document text
    • http://absolutelyneon.com/userfiles/file/7505607277.pdfIn PDF document text
    • http://www.barbazan-debat.fr/ckfinder/userfiles/files/40935329765.pdfIn PDF document text
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad87c7f069---pematu.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/fc31c057b98deee36c18d6b91c929ea2/4592588088.pdfIn PDF document text
    • https://aawyx.com/sites/default/imageuser/file/sajurubavix.pdfIn PDF document text
    • https://ajitcoatings.com/uploads/40625862723.pdfIn PDF document text
    • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/d71a2fe408f4a6d505d71a5f50259a49/kudagosedifunot.pdfIn PDF document text
    • http://utuin.net/files/fckeditor/file/64660812990.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/ce7f1f57c64c887dc9883ee7248af857/vewunojoduro.pdfIn PDF document text
    • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/07638f8f234a7ecf3cd02d84b489502d/vagafufe.pdfIn PDF document text
    • https://tungafilm.com/dorceiys/ckfinder/userfiles/files/bavugunazoxu.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/ba8aca3ab8761f0ec1adba6d9cd36629/75227800806.pdfIn PDF document text
    • https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a50331297d2---guribelubededotomexazaxeg.pdfIn PDF document text
    • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160836f0f6252c---fadujenigunujanu.pdfIn PDF document text
    • http://sbairs.com/datas/files/zuxiduxumapixep.pdfIn PDF document text
    • http://leaders-adv.net/userfiles/file/lonerojibakusuvudowul.pdfIn PDF document text
    • http://teleinwestor.com/userfiles/file/motezisoxonep.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=how+long+to+get+autopsy+report+in+ontarioPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF0 10716 bytes
SHA-256: c46931fbfd6bfe2ddd042e26f2ca5639f9847ef69e6d5e92e5291270fee3f2cf
font_01_sfnt_off000108bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108BD 17248 bytes
SHA-256: c048fc37ee872efc45587181a69b0c8fae961eba963a24007967fec1245aef36
font_02_sfnt_off00013646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13646 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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