Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eac059bc51625f2…

MALICIOUS

PDF

61.4 KB Created: 2021-07-29 19:22:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 66b10ed802c8c72c5925e0664c27d330 SHA-1: 946c91a4bc36b25b6861014af85c9677180f9328 SHA-256: 8eac059bc51625f26a55eacb83d4ef47b587907bcdc4e3fad0c0f674fe475474
124 Risk Score

Malware Insights

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

The PDF file contains a link farm directing users to multiple websites, many of which are hosted on compromised CMS uploads or disposable domains. The ClamAV heuristic identifies this as a phishing trojan, indicating a malicious intent to lure users to potentially harmful sites. The presence of numerous links on potentially untrusted hosting suggests an attempt to distribute malware or conduct phishing attacks.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4857

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://afghansolar.com/userfiles/file/vobibakisewagipubi.pdf In PDF document text
    • https://mudrun.com/home/mud/public_html/ckfinder/userfiles/files/xuxoburujunutola.pdfIn PDF document text
    • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d371130e57---bodaxumefobenazufatulesa.pdfIn PDF document text
    • http://archerelectricsupply.com/userfiles/file/sesupotoropij.pdfIn PDF document text
    • https://turkuazhost.com/calisma2/files/uploads/52291555298.pdfIn PDF document text
    • http://sanders-scottfamily.com/clients/26926/File/kevozavuvu.pdfIn PDF document text
    • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/68adf8c89268590fffe16487b1d7747b/jedolexefokore.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/77053091539.pdfIn PDF document text
    • http://chataphan.com/file_media/file_image/file/67895759304.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/6ef24db4a3c4886b36550cf0a6b4e297/runawe.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/dcfb23e37ca9e47d14b5bb8103401a64/puwizalutetan.pdfIn PDF document text
    • http://iaestedresden.de/userfiles/file/lufegopapozamoxunage.pdfIn PDF document text
    • https://strechybenesov.cz/content/tamegepazavowow.pdfIn PDF document text
    • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/5222f74eba6ee5c09ac718fae5a464af/kimovupaxebunojokelop.pdfIn PDF document text
    • http://pechati-piter.ru/userfiles/file/sulukosubasaza.pdfIn PDF document text
    • http://feldbach-tourismus.at/files/kudugiwufuvur.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607fcb2cc61b6---40988521914.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/2vve4dma3esngk3v3k0l1egb83/82195077009.pdfIn PDF document text
    • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e68380e38cb---20340996331.pdfIn PDF document text
    • http://palenice.net/obrazky_clanky/file/54929043124.pdfIn PDF document text
    • https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/0e653ee190965e60db076d3d64abae11/vadusijegi.pdfIn PDF document text
    • http://alfavit.tv/userfiles/file/jugex.pdfIn PDF document text
    • http://aaaexpressac.com/userfiles/file/jidifeguzujagirogoti.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=what+are+the+system+requirements+for+photoshop+elementsPDF link annotation

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