Malicious PDF — malware analysis report

Static analysis result for SHA-256 7035590f9ac5f8d7…

MALICIOUS

PDF

69.3 KB Created: 2021-07-04 12:54:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-01
MD5: 9c9594a6e2a2266673d49feba0532fa4 SHA-1: b6ba67b70eb5282952d7a7889e8b692aa4cd24e1 SHA-256: 7035590f9ac5f8d741913d1820c393de46cdd5d35b10c2db6a2394b968970324
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8612

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://garglob.ru/uplcv?utm_term=dragon+ball+super+broly+ppsspp+download PDF link annotation
    • http://www.heksan.com.pl/file/sogetuwedeb.pdfIn PDF document text
    • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/16078043f6e680---nonemagodir.pdfIn PDF document text
    • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/tehmuk77m3q2995c9dfqo0vnf7/94734209197.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/midapixalotiduledo.pdfIn PDF document text
    • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/fk35993s1cc2fik1ctmtujqof7/wigekomozugebiboxabogu.pdfIn PDF document text
    • http://abwcoliseum.com/uploads/files/jinakomefemafirujabo.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b5234e9f347---lemoxajebemodovuwudu.pdfIn PDF document text
    • http://alphabodysupplements.com/newerac2c/userfiles/file/gabuxedafuximaxejir.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/h5m79ev9enjduqk4h7tbj73ej0/mezadixumanorokunevupeg.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609582c1113f6---85112190987.pdfIn PDF document text
    • http://agcslohian.com/userfiles/file/laturewetububuxo.pdfIn PDF document text
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/83c9e117b9bf210d1e8f0241f7cdbaf5/53925949202.pdfIn PDF document text
    • https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/17e71594531f07bad036eab106843b1a/suwedamesivaj.pdfIn PDF document text
    • http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160981587af8d3---fapidagutovizezokigetos.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f59aeaf275---42104412039.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c2da1642657---gizikof.pdfIn PDF document text
    • http://nsdadventist.org/FCKData/file/54826409407.pdfIn PDF document text
    • https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16082501c5b54f---gomubu.pdfIn PDF document text
    • http://aimic.com/userfiles/file/zozodekenanawiludozipal.pdfIn PDF document text
    • https://www.lashharmony.co.uk/wp-content/plugins/super-forms/uploads/php/files/4n21lmdffj1nko4e47s7kvbnil/lobumin.pdfIn PDF document text
    • https://binarbaidrealestate.com/public_html/userfiles/file/torera.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD688 16560 bytes
SHA-256: ce8632be683b9831f36a71ba93d1635d34784a8fe9611f71235e39ece86203ee
font_01_sfnt_off000101c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101C9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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