Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a08fbb00f8ddd6e…

MALICIOUS

PDF

63.0 KB Created: 2021-09-04 07:27:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: fa61d4c3f322c4b7c76c8771bf4d68c2 SHA-1: 637ae4422874b4601f328c0c1a45e86a4d79c347 SHA-256: 2a08fbb00f8ddd6e84660dc9fd5570576bd93b5b4e494bd7d6e4622dacb47b7c
154 Risk Score

Malware Insights

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

The PDF contains a large number of links, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to distribute malicious content. ClamAV detection and ML classification confirm its malicious nature, likely serving as a phishing lure or a downloader for further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6379

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://classicalgardenornaments.com/uplds/file/49912339793.pdf
    • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160777f5c47f3d---78532411400.pdf
    • https://tootooair.com/FileData/ckfinder/files/20210821_1C6289999B4A54C9.pdf
    • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d3a95c4ce6---kafukubibutodutidagazez.pdf
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/qkncft7l6gk94nb8gvv6makba7/30187063152.pdf
    • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/h1gjr2i70s1eq2ampk5odu4s75/74694298489.pdf
    • https://rajatotogroup1.com/contents//files/1391086034.pdf
    • https://beauti-full.ru/uploads/files/mukumoj.pdf
    • http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9ef129eb81---76137833789.pdf
    • https://www.assofmt.org/ckfinder/userfiles/files/nojuxod.pdf
    • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/4guf38dh25f75fef2vmvtrod8q/32577728755.pdf
    • https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/434cf33225cc109610f2f2d1043482c1/24737332805.pdf
    • http://visit-pune.com/userfiles/file/pufuvefuvilirinuxataku.pdf
    • https://giorgiosantinelli.it/file/32471320753.pdf
    • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/m70gf5tbh3o4jdgouc1hpvv3f1/21089917460.pdf
    • http://kronikarp.pl/ckfinder/userfiles/files/99738730612.pdf
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/udorihggqcoiut13egg1573oj2/43994053715.pdf
    • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/hgvfibmjh6ed1sdhsa4jpskegh/75065173750.pdf
    • http://zgkimsteszew.pl/img/upload/files/fesirukaz.pdf
    • https://giritrademark.com/content_files/files/potusobirakakuzogelewe.pdf
    • http://eg-connect.com/php_codes/Scott/VieauAssociates/code/userfiles/file/57853168745.pdf
    • http://1544-7419.net/upload/fckeditor/file/panafowofikuripov.pdf
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c15ba4249---nidadalavix.pdf
    • https://epponline.com/mentorfinancial/page_images/file/gasexevuxuwovugewoxo.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=bionic+turtle+frm+question+bank+pdf