Malicious PDF — malware analysis report

Static analysis result for SHA-256 d497d568dfe810fe…

MALICIOUS

PDF

78.1 KB Created: 2021-05-23 00:17:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0fc2e8ccbe4a2d1007b1e9f090c77106 SHA-1: 81120caaf3dda4b8a76cb185667373112302535b SHA-256: d497d568dfe810fefce942857136e5e43f51c47f10913ee903eaa3b4376c90df
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to numerous compromised WordPress sites and disposable hosting, suggesting an attempt to distribute malicious content or conduct phishing. The document body, though heavily obfuscated, appears to be a lure related to vehicle maintenance, aiming to trick users into clicking the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8211

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://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/355a39f485109cc4060c551d68526743/29222301523.pdf
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160822f849da5f---posedolazozovu.pdf
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/j8hlv7g84249g7er178do59jc3/nedenurujoganelabafo.pdf
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609fe50a6ece7---gejivagodarivoniwe.pdf
    • https://tipresentoio.it/images/file/gopavutebuniwoxomelojajog.pdf
    • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/ed88944a656eba0ba679b8c989b47cf6/gududupamajubemog.pdf
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/a1905b011b0afdac54a53a774eb73e28/21438983636.pdf
    • https://xanbiente.de/userfiles/file/minererulimigixazafujek.pdf
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/8e79d954a78481e998571bc72e2bc8b3/37312077749.pdf
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe981a0097---lotowufunawufanajosa.pdf
    • http://driver-jazda.pl/upload/file/5502748317.pdf
    • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160713cc27ca66---miruwexodubod.pdf
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1df3fbd36cf837c5506de27dee481aa9/50416886312.pdf
    • http://bocghedanang.com/media/ftp/file/gigegelawobuge.pdf
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/uiobjdeh0c71fjhgt7crscuk6h/nejumeruvovuvalanipaxe.pdf
    • https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/d2d144b89f6fbd90db2dfd2327acac30/91563996464.pdf
    • https://kimtuong.vn/isc/public/files/fckupload/file/20347119413.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=tabla+de+mantenimiento+chevrolet+aveo+2015
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011745.bin
91fcf198223185bc2ec5c79b5d1682fd708750788d95272382844723aeb1560c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11745 5600 bytes

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