Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6b4af5dd393a1fd…

MALICIOUS

PDF

119.6 KB Created: 2021-06-27 08:17:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: fd2685955b07378d80da6ad66648b16f SHA-1: 55968752256b326815897c463b78c0b5baf74e8f SHA-256: a6b4af5dd393a1fd0a8ddc11e54ed5ee9edff099bbb5eea3caf96ab38926b53c
124 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with a signature indicating it is a phishing trojan. Static analysis reveals numerous embedded URLs pointing to compromised WordPress sites, many of which are configured to serve PDF files. These links are likely used to redirect users to malicious content, such as phishing pages or exploit kits.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4594

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://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/1vm9ppsncmoinj9f6rkq7aj941/37197855103.pdf In PDF document text
    • http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaded7a23f2---xadeleximulofuxepi.pdfIn PDF document text
    • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/d9b7349a1710bd906f7e37ecaea005d7/79521626577.pdfIn PDF document text
    • http://slsnn.ru/content/files/8229278530.pdfIn PDF document text
    • http://bet-balance.com/userfiles/file/bexujamudisodokumirovazep.pdfIn PDF document text
    • http://luingpyrex.cz/foto/Image/file/5210541470.pdfIn PDF document text
    • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/cdm50rhs7st4tctlpgtdahibj2/97121176508.pdfIn PDF document text
    • https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/il1vni96vnd6bp9t2uh7hkf6fk/28718592353.pdfIn PDF document text
    • http://work4shop.cz/userfiles/file/figadazezi.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/c2f571fbe7e28f775ca3188306e26a2c/36040849105.pdfIn PDF document text
    • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe7e042672---16904736263.pdfIn PDF document text
    • http://artospace.com/pics/file/19455078386.pdfIn PDF document text
    • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/12ec74b751b306d7659787fa616f4f00/2669323925.pdfIn PDF document text
    • https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609867091c7af---45733938960.pdfIn PDF document text
    • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160762452da2ae---29052670391.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c793527894f---41662750518.pdfIn PDF document text
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076695acac90---90418237592.pdfIn PDF document text
    • https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/c4782c962c157efa949464993ab0dfe1/jurixopalo.pdfIn PDF document text
    • https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/fkfm1kcd0p9okibltm9sj80gk0/wifufunetuxanekuge.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/7d745229ed8270ef040bf3cf9f18303d/poxewebodimuwegev.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ae81c8666---37053219502.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607505dd91f79---mamivijewanexosijegesafur.pdfIn PDF document text
    • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a97092d2b9f---nositujofelewixam.pdfIn PDF document text
    • http://lltsg.com/uploadfile/file///2021062111463289.pdfIn PDF document text
    • http://thermogroup.ru/uploads/files/92994173770.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=no+significant+abnormalityPDF link annotation

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