Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6eb2d9720de3501…

MALICIOUS

PDF

207.9 KB Created: 2021-07-04 21:18:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 8d7c4b334b6130e14bb36346b4227e76 SHA-1: 06590f889551bc92b0eae54b21d4b6c2659f221b SHA-256: e6eb2d9720de35017dc0f50e685873971f6a33140643ec5170a3f8beadf436eb
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised CMS upload storage, and utilizes an SEO redirector to disguise the download of further malicious PDFs. The primary lure appears to be a free download, suggesting a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9741

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 lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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 https://allytemp.ru/uplcv?utm_term=hubbell+catalog+pdf PDF link annotation
    • https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/n1n7k956nlvh5a1qedo6t81ndi/67987480582.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/2c3225b8a561d6d9ef939850f9f71586/wovusiwil.pdfIn PDF document text
    • http://muzeumostrowiec.pl/obrazy/file/98549456520.pdfIn PDF document text
    • http://50wj66.com/clients/a/af/af9d65f11c1965a5434adcd4cd578f00/File/76800095244.pdfIn PDF document text
    • http://asremajazi.com/uploads/files/29896368067.pdfIn PDF document text
    • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aaea616af6---sivezevinu.pdfIn PDF document text
    • https://noddy.nu/images/file/67824723126.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c87d32228d6---30748349307.pdfIn PDF document text
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097944f4f4da---82812421195.pdfIn PDF document text
    • http://backupcenters.com/userfiles/file/97174969275.pdfIn PDF document text
    • http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/16075714e1066f---25372679728.pdfIn PDF document text
    • https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/50c079c13177864f58e19560aa9268cd/88637686975.pdfIn PDF document text
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607efb8bec8f5---wipisuvezebasajaviduxir.pdfIn PDF document text
    • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e82c803b12---tefulabusu.pdfIn PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a1e11709a37---25504958040.pdfIn PDF document text
    • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adbf17410c8---71594510030.pdfIn PDF document text
    • http://cp-tournament.org/ckfinder/userfiles/files/zuzizumixe.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/ca43e6ce879d64e615dc80ed7bd2cdae/45705804540.pdfIn PDF document text
    • https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/3fd5613caf9c629fdc69fdeef9f12733/jogarubosefometejumav.pdfIn PDF document text
    • https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa06590019---rosugesuti.pdfIn PDF document text
    • http://cec-intl.ru/app/webroot/files/file/lobozujobu.pdfIn PDF document text
    • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/b2ad3a59515269159ec3b0e7fe907500/84631059843.pdfIn PDF document text
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002b4a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B4A5 10560 bytes
SHA-256: 3cb470121d7e3da8fc6147ef008069a45d7efa7aafc3cddfe31483b2170d089f
font_01_sfnt_off0002cc6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC6A 16392 bytes
SHA-256: 2482fcced7d4cd4b018337f911af9a225669ae052fbf51954d3df28bb563e104
font_02_sfnt_off0002e2eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2EB 20204 bytes
SHA-256: 5c5d6ad6403f1db08bf7d9b850b445d427582829ba4f0fef515f61efca4e5699
font_03_sfnt_off000317be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x317BE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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