Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3065b9e3a01723…

MALICIOUS

PDF

88.7 KB Created: 2021-07-01 15:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2759a93160d80f41422934e6ddbef95a SHA-1: eb5566f6921f3d47f535bf16890a6516ad000bf5 SHA-256: 0d3065b9e3a0172376a4546cc67896c8dc2826d1ba1a868b4f740810469f4dc4
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of links, many pointing to compromised or disposable domains, suggesting a link farm designed to distribute malicious content or phish users. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5777

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 http://baraanduliaptti.org/userfiles/file/gawekoranovazevigo.pdf
    • https://allcreaturesinc.com/files/files/ziropibasaletexusinalap.pdf
    • http://remaining-mc.de/userfiles/file/79629214618.pdf
    • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/542c36d1e740f4f8c7d6079b98bdc96c/wuxokipoxedipo.pdf
    • http://ajtoablakcentrum.com/_user/file/gorezatokipijopuk.pdf
    • https://butchercurnow.com/img/shop//contents/1856158396.pdf
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/a26ad5dd2f114f3518afc66ca7f80771/65139660472.pdf
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/78invbmc39gn0bnkd37kk7sqa7/gevimezibidibofolunoxoweb.pdf
    • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccb983927b---58413089578.pdf
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160c8db5fbaeb9---78860769124.pdf
    • https://agentcctv.com/userfiles/file/90049143419.pdf
    • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608289b43824d---tibasalotiv.pdf
    • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a9eba193a22---5055887138.pdf
    • https://edmaker.site/wp-content/plugins/super-forms/uploads/php/files/fa1e7a4b8b00cc7ee2cb44856504b46c/fedilijikigud.pdf
    • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b4ef1e9ea---bopuvozelulosimane.pdf
    • http://maility.pl/_ADRESuserfiles/file/64457740829.pdf
    • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609edfa4633ad---43510256015.pdf
    • https://chris-arnold.com/userfiles/file/74278842376.pdf
    • http://foodchemsino.com/d/files/wifasorunetefijibok.pdf
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8be4378302---vivebemujukegedigorosadon.pdf
    • https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/9nsoqgq0s7ib95np2b7u14ak5b/mugulewiwebonipunewope.pdf
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607c910b058c8---zixerobonadupudobarewuvol.pdf
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/542a7eddf27b87185d4061b00b441bbc/16071991782.pdf
    • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160babc492b536---jofupivaxajolizura.pdf
    • https://ghnservizi.com/file/motowibegufi.pdf
    • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607121ae935b0---givavumomi.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=ra+7836+philippine+teachers+professionalization+act+of+1994
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012072.bin
1ce3a5196ac2bf79e86c2bc222773bfc0f9e82cd69a1f0f6997fb23d5100bf7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12072 11580 bytes
font_01_sfnt_off00013bff.bin
64d86d5080ef10e38fd44b6635e3db86ba7a6374bcc9e5060e85f069184391a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13BFF 17124 bytes

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