Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2b3298bc217486d…

MALICIOUS

PDF

104.2 KB Created: 2021-07-02 13:57:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15
MD5: 124c78ffd29b41838631cbbddbfc36a6 SHA-1: 6e438c103275456d8af86e5738a08dddf926ae00 SHA-256: e2b3298bc217486d5d6a31c97f8aa1c1fd08d6f79bcaa877f18660b184ba1c2d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories, indicating a link farm designed to host and distribute malicious files. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these links. No scripts were extracted, but the structure and URL analysis point to a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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 http://9meclinic.com/ckfinder/userfiles/files/84211562534.pdf In PDF document text
    • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/5c782e6d9431db6484ccbc78ae9915f8/87422837205.pdfIn PDF document text
    • https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d837a0e5e90---92897982083.pdfIn PDF document text
    • https://bursakaynak.net/userfiles/file/veronidu.pdfIn PDF document text
    • http://anhuizpyy.com/upload_fck/file/2021-5-2/20210502022702743664.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160741b377e8f5---pezenageve.pdfIn PDF document text
    • https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/d8d24801d15561b17b0bb4218c19154b/ginagi.pdfIn PDF document text
    • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/7df11b1ccb018f8b2196195a5ca06d0e/38312586001.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d3e12caa0---lemenajojenavu.pdfIn PDF document text
    • https://aspaeng.com/files/image/files/dujak.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160833282b3d4e---jojozerurizurovike.pdfIn PDF document text
    • http://www.companyforte.com/imagenes/editor/file/pixuxijutufosuzoper.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160885dbd65919---rezuwuzikuliza.pdfIn PDF document text
    • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa6e027c84---sibufelikowudi.pdfIn PDF document text
    • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/e21cdaea8aac522abcc7c1092f1698cc/dugezotekojanimutoja.pdfIn PDF document text
    • http://handsonmontessoripk.com/userfiles/files/94022985700.pdfIn PDF document text
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/938de1a9bc33cc0d975faf5178a8420d/witab.pdfIn PDF document text
    • http://chapelguild.com/images/usr/66415560599.pdfIn PDF document text
    • https://soechi.net/userfiles/file/gukalopiruzef.pdfIn PDF document text
    • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe23f8b126---maxatos.pdfIn PDF document text
    • http://beloezoloto.ru/userfiles/file/3524154097.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/b9cb174990c4841ca1a7b2b1503c63b1/kipijawuwesokip.pdfIn PDF document text
    • https://allcreaturesinc.com/files/files/jepuximiserixam.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=the+book+of+enoch+flat+earthPDF 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_off0001322c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1322C 19168 bytes
SHA-256: b1f68bd56d80dd1be920232070362416e162b55b7b1dd0e29470337287c718d2
font_01_sfnt_off0001643b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1643B 10368 bytes
SHA-256: 5782dd3f0daf678625f133411afde3a12bdec5270c9ca12a8ae91ee590600865
font_02_sfnt_off00017bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17BAC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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