Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dfedf749dc23006…

MALICIOUS

PDF

82.2 KB Created: 2021-09-03 02:29:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 4f9d8be5f62cf27561c29879522f2f54 SHA-1: d5303ed8e19196d73ad24f5a7822a9bb2e3ea308 SHA-256: 0dfedf749dc23006338eb3aba7817ed59ea840c9cc3da7ea7b6bad2a243b6ff7
154 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier. Heuristics indicate it functions as a link farm, with numerous URLs pointing to compromised WordPress sites. The document body is unreadable, but the presence of multiple links to potentially malicious domains suggests an attempt to lure users to phishing or malware-hosting sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5648

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://gfow.om/wp-content/plugins/super-forms/uploads/php/files/s8jih3fnjnkp8l0gvrnr6dhmia/vadaxibadekugalofed.pdf In PDF document text
    • http://moon-villa123.com/CKEdit/upload/files/jezutatafosapijavaziwube.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a4873109ab4---bovenadufigipope.pdfIn PDF document text
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/552158f7e97e6ffc0c418c1355db1cdf/zupatapanodajosarigizos.pdfIn PDF document text
    • https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/1es5j9fg9o451mepc804g1fpi6/20212559676.pdfIn PDF document text
    • https://pacpartner.net/images_client//imagesfile/26808008216.pdfIn PDF document text
    • http://shreyaghoshal.com/konadnew/userfiles/file/62430097222.pdfIn PDF document text
    • https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/ae56301656f1a31f6f925f64a167d362/gijebapokuxenobez.pdfIn PDF document text
    • https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/53398be56bca3657cfd1f127be5c8af5/votekixuxubenalit.pdfIn PDF document text
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa9bfc6c30e---36995778418.pdfIn PDF document text
    • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/19a99210a457888cbd6996c72b7155da/lonot.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/suevfbgds6amsr1o20vn01f80u/nulozi.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e97e4082d4---54831564223.pdfIn PDF document text
    • http://novussiteyonetimi.com/uploads/file/56690703175.pdfIn PDF document text
    • https://korzayithalat.com/spot/admin/fckeditor/userfiles/file/18586625451.pdfIn PDF document text
    • https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c17e4e4b45b---wivigovenukiwufa.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16073417ed0a72---wubawukuruwalarur.pdfIn PDF document text
    • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/27ad7de4185b64ece0980755800e27bb/tomirunigijixif.pdfIn PDF document text
    • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16110e40b466b6---1167132400.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b0d28bb7dbc---31293253311.pdfIn PDF document text
    • https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/fe3d5ea111ccd0abaf140ad781d4af02/wilojixojotigebewa.pdfIn PDF document text
    • https://designclarf.it/file/faruxipenarukexof.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16104b6132cb3e---13835892994.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=lufia+2+walkthrough+pdfPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012fc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FC7 10728 bytes
SHA-256: 96e0b0b9bae5ee0ee664a7fd98b333762c08a42fa6494b3c19ddd93c0f4174c8