Malicious PDF — malware analysis report

Static analysis result for SHA-256 e11fbe12ae9afb60…

MALICIOUS

PDF

73.5 KB Created: 2021-06-21 09:16:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 32ce5d56b10132d8ae3b1a9cd28f930e SHA-1: f5a6ff691798a0d7f52201314d5df0c08ad5a15b SHA-256: e11fbe12ae9afb60876f661de796b01c2087aea3a0ba2bb1c6ac44851ccc23f0
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. The document body, though heavily obfuscated, contains references to 'Dragon ball z manga free download', suggesting a lure for users seeking such content. The numerous embedded URLs pointing to compromised CMS upload directories and disposable hosting further support a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9813

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.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c40f2a990---lorejal.pdf In PDF document text
    • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/25b28ca82387db130ced6e18cafe48d1/jojapawotugokogijorififoz.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095b876a28e4---13010638927.pdfIn PDF document text
    • http://amctop.com/board_data/editor_img/file/202106211044.pdfIn PDF document text
    • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2ca18c1e73---puvujidunuvimibota.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160a44b08709b6---72749651520.pdfIn PDF document text
    • https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/81dfa81f1fe7a9eae64fa93644a637a3/64549345474.pdfIn PDF document text
    • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ef74e640b9---93209302410.pdfIn PDF document text
    • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/94g8r94qejivchgf62qqqcni75/56025631400.pdfIn PDF document text
    • http://www.ochoadentalcare.com/tacgestorcontenidos_ochoa/documentos/file/suzilamobawixeboturowi.pdfIn PDF document text
    • https://nepalipublisher.com/ckfinder/userfiles/files/nutiw.pdfIn PDF document text
    • http://beijingxinzhi.com/userfiles/file/20210612041310_601152843.pdfIn PDF document text
    • http://cristal-in.fr/userfiles/file/17998940698.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/da7706539a185bba249ca91010d2b52e/29958525727.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/36a794c62a44d365b927c723b1bc8884/kipabuginukepep.pdfIn PDF document text
    • https://t2sc.me/userfiles/rezik.pdfIn PDF document text
    • http://mosjob.ru/images/file/62974579982.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=dragon+ball+z+manga+free+downloadPDF link annotation
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7ED 4992 bytes
SHA-256: b07248d5695586a2ea3b2188629e4486b5e42457bbc46246ddebb7716b2c5e22
font_01_sfnt_off0000e8d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D9 22020 bytes
SHA-256: 8e76617e1e908ab7ac2b43fb1e1420e4ff2d961563463c5288a4284a102d5c43
font_02_sfnt_off0001199c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1199C 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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