Malicious PDF — malware analysis report

Static analysis result for SHA-256 6269ca3209e7c2e6…

MALICIOUS

PDF

62.5 KB Created: 2021-08-26 00:46:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: de1411b628e7977408049cc13040045a SHA-1: 4f4f054c2b23de764f06ae2441abe779d122ad53 SHA-256: 6269ca3209e7c2e6b6495d1541829e6a11aa0b8559550b26d33a5cd3236a1e0b
94 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded URLs, many of which point to compromised WordPress sites. These sites are hosting further PDF files, suggesting a link farm or redirection scheme designed to lead users to malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8143

Heuristics 4

  • 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.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160859dc6a0598---gepesofawete.pdf In PDF document text
    • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/16096dd6bea89a---72679977064.pdfIn PDF document text
    • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/f63ec9b1ed0be51672ffc3d49352f411/bedurejofezisasoza.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bfba7c571fe---92843897783.pdfIn PDF document text
    • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8fd11169b8---53019334657.pdfIn PDF document text
    • http://2013.letnifestiwal.pl/ckfinder/userfiles/files/dalurizapukibuxu.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16093e5ee4c9ac---zemifunevo.pdfIn PDF document text
    • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/fjg3p60gd5n7pn9rg55tr5n234/47158322761.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cbd48c62e33---26631393321.pdfIn PDF document text
    • http://sanga.asia/userData/board/file/67785959256.pdfIn PDF document text
    • https://kildevangen.dk/files/lomufonabaxemaj.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160c099d9e0234---nowidekepiwoluwo.pdfIn PDF document text
    • https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/c35avgiqdel9h7gv54ql8eanvd/35900302660.pdfIn PDF document text
    • http://myshopgroup.com/userfiles/files/majatagig.pdfIn PDF document text
    • http://alemotta.com/resources/original/file/46079152485.pdfIn PDF document text
    • http://fishtech.org/uploads/userfiles/file/file/xusiribizaz.pdfIn PDF document text
    • https://airtelco.com/data/users/_/email/files/sunisigibiwane.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16079a10233a62---babipuge.pdfIn PDF document text
    • http://daoltrading.com/userData/board/file/12602816182.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/3e1a03315688d40d0a527e9c0d734b99/nuvuzuno.pdfIn PDF document text
    • https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/3d3a1658c9baed08b575f6c5e4e08d35/24484691774.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe566059bb---kebarujarita.pdfIn PDF document text
    • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/to45fnuqe4c9ubmrtuqpok8963/tazarifuniterovajuzawid.pdfIn PDF document text
    • http://www.awakohchang.com/image/upload/File/022607550.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=oliver+cromwell+artistPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA5C 16632 bytes
SHA-256: 4ce712866e4749caf3ca6dbf89074a7e1a480e901c8ddc9187b5178d3b38e0f5

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