Malicious PDF — malware analysis report

Static analysis result for SHA-256 30b2ef034cf64fb4…

MALICIOUS

PDF

86.3 KB Created: 2021-08-11 17:14:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 7936d1647cf439d3a57ec501cb7578bf SHA-1: 898880e1d75bcd4b6a0aa26df2b209f6ce071a91 SHA-256: 30b2ef034cf64fb4b393cf28330a9e43300f77cd56c68be5e907f1deda4ea1bc
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link farm pointing to numerous URLs, many of which are hosted on compromised WordPress sites. The ML classifier strongly indicated maliciousness. The document's structure and the nature of the linked URLs suggest it is designed to lure users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

Heuristics 5

  • 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 http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f77e48e6d---vebatudupafatof.pdf In PDF document text
    • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/52242596fe7d290db124d6984bb49ebf/rakugoweluvat.pdfIn PDF document text
    • http://chi-kara.net/userfiles/file/xesojudagetigotazu.pdfIn PDF document text
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac61a731602---13836185263.pdfIn PDF document text
    • https://olympicwroclaw.pl/zdjecia/fck/file/6375324966.pdfIn PDF document text
    • https://denizlihorozu.com/resimler/files/biwesukogixodusijipe.pdfIn PDF document text
    • https://hanyauntuktesting.com/contents//files/kovixuvetaregag.pdfIn PDF document text
    • http://roycraft.ca/userfiles/file/dumovipi.pdfIn PDF document text
    • http://logistra.fr/ressource/site-image/files/fumenexata.pdfIn PDF document text
    • https://marathonlaval.com/userfiles/files/65984176136.pdfIn PDF document text
    • http://reckdance.pl/userfiles/file/dujeritolopuva.pdfIn PDF document text
    • https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/q7r4cm609kbthch4ie554npioc/zimesegiwizazupusis.pdfIn PDF document text
    • http://szyldkj.com/luodan/images/userfiles/file/91121132001.pdfIn PDF document text
    • http://jadeite.ru/images/file/zaxediwetikimobukuxomebal.pdfIn PDF document text
    • http://emotionpicturesfestival.gr/userfiles/file/87675766905.pdfIn PDF document text
    • https://aawyx.com/sites/default/imageuser/file/72388226833.pdfIn PDF document text
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cdb902e5a0f---82759922588.pdfIn PDF document text
    • http://manchetenewsms.com.br/ckfinder/userfiles/files/datufopakekadeforuwiboj.pdfIn PDF document text
    • https://bya-ingenieria.com/ckfinder/userfiles/files/lonodosimevemexusakuv.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f896ac8db---90891825264.pdfIn PDF document text
    • http://www.deopendeur.org/imgUser/file/46161170851.pdfIn PDF document text
    • https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/7fb6e05ee24119174e0d8642d1448aea/28303453623.pdfIn PDF document text
    • http://thaimassageboy.com/ckfinder/userfiles/files/68603597232.pdfIn PDF document text
    • http://josepholszowka.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/32701738444.pdfIn PDF document text
    • https://aaaxxion.info/images/file/2084642326.pdfIn PDF document text
    • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/vm744rg78vqolp4ioi6t79opik/39834642327.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=granny+chapter+2+god+mod+apk+downloadPDF 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_off0000eb33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB33 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10345 17568 bytes
SHA-256: cc8c044dde4a4b257e6b3047f5659660c6876687e747af1433b69d5e96b3a19a
font_02_sfnt_off0001318b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1318B 11152 bytes
SHA-256: cde3761ef91abe9df5a5d73e4c2acd4bf6830552ffddb9b92c60850eae23ef10

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