Malicious PDF — malware analysis report

Static analysis result for SHA-256 72e93de06b6c3dca…

MALICIOUS

PDF

55.7 KB Created: 2021-05-18 01:06:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5222b70a5576b8f7b7bc33f2dfbb0d8e SHA-1: 01f0173d883791cffb34da30ab3c324273cb1da5 SHA-256: 72e93de06b6c3dca285c32af6adfd56151d21e22970ba3331d8dbaa47051b3d2
154 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the nature of the hosting indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8427

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://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16088ade8f1b27---vajekemenadanifabopuragad.pdf
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6a68cf943---gapakerezurusefig.pdf
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608f4a76a57c9---51671989779.pdf
    • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a03bf3f17ee---zogizebomawekafezavafekoz.pdf
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/d7d29167f673f48a08a79279e58afded/gasuzabawejikabuduli.pdf
    • http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160822f472023b---28763369053.pdf
    • https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16083ef23342dc---litafef.pdf
    • http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed76717ba6---vajanoxukolakotokipig.pdf
    • http://aelma.com/sites/default/userfiles/file/70512783357.pdf
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/fcc4fb52f69ccf4e3e29e7e293d1fd5d/xomopubokexanibapivavag.pdf
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608da9660dc4a---60711182108.pdf
    • https://www.helpforbusymums.com/wp-content/plugins/super-forms/uploads/php/files/32b113c5600795b268de71663ed9a32a/7786164433.pdf
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/cf1fe5cb24c10c1bb7bcb0d7bb79adc1/44926869222.pdf
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/5bfd0ff69dfe2eb110d8ae3f9d8f6d0e/seluduwenuzigurize.pdf
    • https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608307dc93758---vavis.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=comentario+b%25C3%25ADblico+adventista+tomo+6+pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf65.bin
bf3c0dda96255c45869825484f98ed27d5c5b22020e00c292b5af3a99510addd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF65 5616 bytes

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