Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b5ff585178dacda…

MALICIOUS

PDF

80.0 KB Created: 2021-07-14 01:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: fd05c0d655555c680874a057ba1ba07d SHA-1: 53e00b0b722673544587619a019512e868fc3ce2 SHA-256: 0b5ff585178dacda322fe2c0e0e57bc5036cad64d221219b9b323994d24d50bb
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised WordPress upload directories and other potentially malicious sites. The presence of numerous links on disposable hosting further supports its role in distributing malicious content or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7999

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://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b84227c0f8---mimidibatajebu.pdf In PDF document text
    • https://bititechnika.com/uploads/file/fogomijik.pdfIn PDF document text
    • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/64ufiph6u209cqcj12gsi4i8cu/julumonosedaxonudul.pdfIn PDF document text
    • http://lorofilmes.com/Uploads/ckfinder/userfiles/files/kudej.pdfIn PDF document text
    • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/bo7mto3rnnkvf31iinu6qvc502/10364687931.pdfIn PDF document text
    • https://almondzwealth.com/administrator/imagetemp/file/gikidesonipisav.pdfIn PDF document text
    • http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/rgadqec75g765dq3qemgajfnb2/gekogolexomejomupeba.pdfIn PDF document text
    • https://bangvetthuong.com/luutru/files/22755950737.pdfIn PDF document text
    • https://kund-in.com/userfiles/file/sugibakavedorodadiwofulo.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160752cf2f0908---gutotolege.pdfIn PDF document text
    • http://busankid.com/webfiles/board/file///ragagavusojebi.pdfIn PDF document text
    • http://sklepjola.pl/userfiles/file/74626227422.pdfIn PDF document text
    • http://gsemilia.it/userfiles/files/66507357830.pdfIn PDF document text
    • https://jahanchart.ir/data/files/file/19050715615.pdfIn PDF document text
    • https://systematix.pl/userfiles/file/83100116332.pdfIn PDF document text
    • http://vandientuchinhhang.com/upload/files/babapow.pdfIn PDF document text
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/685c05801a8e56b4aaa0966dde544e7f/xojolaj.pdfIn PDF document text
    • http://dges.in/userfiles/file/33138284683.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608af878bedb4---36257010455.pdfIn PDF document text
    • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/d0ab697d1a18172a23352fb802a769d8/jogesa.pdfIn PDF document text
    • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16096eaaf5a360---93270548961.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2vqlats3pog254509do9p1mbi6/lelipenejuzapal.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=how+to+make+your+crush+talk+to+you+on+instagramPDF 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_off00011148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11148 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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