Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e9c6625913a82c1…

MALICIOUS

PDF

84.4 KB Created: 2021-09-04 01:37:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: b11c2c60365e0c5102af86edbeecad7d SHA-1: 6a8261598b38e16eb7a69ba673ef02e8c21ff8fa SHA-256: 1e9c6625913a82c1c10aa6f8e01314ecb04ca089718d6aef35aa198a80de03c6
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous embedded URLs, many pointing to compromised WordPress sites and potentially disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier also indicated a high probability of maliciousness. No scripts were extracted, but the overall structure and URL distribution strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6118

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://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c929a7a153a---61645723395.pdf In PDF document text
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/0b6bfdc67600c68aff245f141e5ccc16/37955354000.pdfIn PDF document text
    • http://aczelzalog.hu/tmp/37150384793.pdfIn PDF document text
    • http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/3351966119.pdfIn PDF document text
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/9f8ee53538318c38a68352bd46721e60/torin.pdfIn PDF document text
    • http://fitviewer.biz/files/file/robokezisotax.pdfIn PDF document text
    • https://chiataiec.com/userfiles/Proj_Name//files/56110420160.pdfIn PDF document text
    • http://flixgolf.com/ckeditor/ckfinder/userfiles/files/86894366218.pdfIn PDF document text
    • https://apz-arte.com/ckfinder/userfiles/files/rakigazoxewigudo.pdfIn PDF document text
    • https://tessuno.com/upload/files/60d8c81872828.pdfIn PDF document text
    • http://ruben.pl/ckfinder/userfiles/files/bejorisamu.pdfIn PDF document text
    • http://cheers-gifts.com/userfiles/53631998509.pdfIn PDF document text
    • http://byecook.com/ckupload/files/52027829623.pdfIn PDF document text
    • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b760704f90a---97098123122.pdfIn PDF document text
    • http://shinyoungvalve.com/userData/board/file/53870375744.pdfIn PDF document text
    • https://www.igescanada.com/ckfinder/userfiles/files/lilogifefoxemo.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1611ab30133990---53325216682.pdfIn PDF document text
    • http://tbm-mova.by/images_from_html_editor/file/puzolurelexit.pdfIn PDF document text
    • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/2232ccfafd051020adc82da919c18ead/dewujimub.pdfIn PDF document text
    • https://marigabung.com/contents//files/45276023405.pdfIn PDF document text
    • http://isleford.com/filespath/files/20210904053405.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=campo+magnetico+producido+por+un+solenoide+pdfPDF 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_off00010cad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CAD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000124bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124BF 19256 bytes
SHA-256: 37fdaa5b18f646cebedf809d1958bc316a16323b0431303d121a35a8133009bc

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