Malicious PDF — malware analysis report

Static analysis result for SHA-256 300f57a02b2df65b…

MALICIOUS

PDF

89.4 KB Created: 2021-07-06 09:00:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15
MD5: 8c5e94373e7b4410261e314a67142bb2 SHA-1: 4db2a2a28d52f09c2abda500f0fcb0f07e262836 SHA-256: 300f57a02b2df65b96f70b1facc4516ad796ea15cf13025e4107632bb192282f
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document functions as a link farm, with numerous URLs pointing to various websites, including those hosted on compromised CMS upload storage. The presence of these links suggests an attempt to lure users to potentially malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9822

Heuristics 6

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://oklogistic.lv/upload/file/ganizibevapugabibutux.pdf In PDF document text
    • https://cubic.is/userfiles/file/sofinibof.pdfIn PDF document text
    • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/16094a63d0aaaa---giwotibitepomufuror.pdfIn PDF document text
    • https://baxsporthorses.com/userfiles/file/burolufiji.pdfIn PDF document text
    • https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/43ea495789f64163f9e8536c28eb3a68/98053164397.pdfIn PDF document text
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/f39a15ef5c7a5e93843fc55d395d8663/23629015655.pdfIn PDF document text
    • http://orchid-daikanyama.com/userfiles/file/80929897808.pdfIn PDF document text
    • http://3xlove.com/uploadfile/file/1036875243.pdfIn PDF document text
    • https://baongochoa.com/upload/file/11487646367.pdfIn PDF document text
    • http://karate-talence.com/newsite/userfiles/files/melidevavofes.pdfIn PDF document text
    • http://goteneplast.se/files/images/file/88104005734.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16090d1dd741d6---petekanonutokesulisex.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c71e7193b6e---90017018558.pdfIn PDF document text
    • https://pakistanchristiancongress.org/userfiles/file/93755918544.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/160941ff789334---17629622961.pdfIn PDF document text
    • http://bakineshr.az/ckfinder/userfiles/files/jukerawebufegeneleturol.pdfIn PDF document text
    • https://spectrumohio.com/wp-content/plugins/super-forms/uploads/php/files/f60cb733a54c757374bbfc139ddf1ff4/67147120289.pdfIn PDF document text
    • http://kag.fr/userfiles/file/43174607847.pdfIn PDF document text
    • http://stonebreaker.at/36071218665.pdfIn PDF document text
    • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/um9p4lcggak8chdf0h8f8613i4/49383015344.pdfIn PDF document text
    • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/6nuts7pihq0tr5h6gt7j67rpt4/juwuxewufolupowip.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c795adb7cca---53335945303.pdfIn PDF document text
    • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/03p1jfdok0oeps2h2r7clavhdq/medutagufat.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c949955c78---jixisavubobe.pdfIn PDF document text
    • http://lohs69.com/clients/82366/File/gagologugevumotizumiwida.pdfIn PDF document text
    • https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/c2f3a6f8a4650c6cec98584c2d35921f/dulakutemizidanu.pdfIn PDF document text
    • https://planet-for-events.de/userfiles/file/43333554139.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=8+ways+of+learning+activitiesPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f732.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF732 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F44 17664 bytes
SHA-256: 16106886026cc2c3e9ba31cf2338f3e9b7ca4cf57bba7293be1dbddac48074c6
font_02_sfnt_off00013d66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D66 10888 bytes
SHA-256: 71246926b96b62ab7b6cdd76ff07977fda7d8c8a1c68eaee6aafdaea82950fcc

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