Malicious PDF — malware analysis report

Static analysis result for SHA-256 241fe2ea46d3044b…

MALICIOUS

PDF

77.9 KB Created: 2021-07-19 04:59:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 25069d50192246194affdf8bf5b1e278 SHA-1: b0fafc6a2d98039c4444483226cc53bc458645c9 SHA-256: 241fe2ea46d3044b2e22c7b031eeae91731b08e00c0fda6ffd7663c99304c391
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file is a PDF identified by ClamAV as Pdf.Phishing.Trojan. It contains a link farm pointing to multiple URLs, many of which are hosted on compromised WordPress sites. These links likely lead to phishing pages or further malware downloads, indicating a malicious intent to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4750

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab800eaea24---xepivosebakexifeko.pdf In PDF document text
    • http://mid-europe-ex.com/images/blog//file/25367977977.pdfIn PDF document text
    • http://yejida.com/userfiles/file/10379102392.pdfIn PDF document text
    • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3ac21ae97d---56929056874.pdfIn PDF document text
    • http://earthtalismanjewelry.com/clients/b/b2/b27d4d76c51cd35ccef873a204118430/File/vawateponakisamulafozuri.pdfIn PDF document text
    • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/34o4c604tudk0m5i9odh3h8je5/wikixewofali.pdfIn PDF document text
    • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/3ac7bc954b0080f9142cd8276bad9aea/denalogibiz.pdfIn PDF document text
    • https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/dj2kj5qah29dplu4qbajgac4ng/jojowidukoravogenofevukir.pdfIn PDF document text
    • https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/qe6tuieo2ak9tln3j0v714cmpi/nuwukisegusege.pdfIn PDF document text
    • http://massimosusto.eu/userfiles/files/pomewaxarol.pdfIn PDF document text
    • http://www.ecvbrass.ch/user/web/file/simibebesosalosixozovigu.pdfIn PDF document text
    • http://ligneus.hu/upload/file/kajuwolupiva.pdfIn PDF document text
    • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/4fbf26e8c06685e16beea85302fc3f53/60272928477.pdfIn PDF document text
    • https://fruzsiflame.hu/userfiles/file/20975094427.pdfIn PDF document text
    • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/c57796eaf3a57e0c5a0ef66fd072d1c3/vemanupuwube.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/dc9b21f19dfd137b643afecb5533ebf7/meliwuk.pdfIn PDF document text
    • http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607380af28ddf---lixeziwemisejavegewiv.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16070379f2b07a---jasofulesurelip.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/c790f0897838fa4b9a6f14b22749bc65/27393429107.pdfIn PDF document text
    • http://scouttautomotive.com/editor_uploads/system/files/fopavurolaw.pdfIn PDF document text
    • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ffc7d1485a---34752959938.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c873f100d72---21809048221.pdfIn PDF document text
    • http://ndt-ultratech.com/files/detofuf.pdfIn PDF document text
    • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/97273f7860e23fd10c840cbb09ab81bc/buwanelonega.pdfIn PDF document text
    • http://mav-auto.ru/images/file/pilugizasedom.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=easy+meals+with+hamburger+meatPDF link annotation
    • 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_off0000ed63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED63 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001057a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1057A 10752 bytes
SHA-256: 8e39068d130863ceb395a91e0f4e31fcc0e7ffe374583a7ada11a544600bab9e