Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3d5c15645082698…

MALICIOUS

PDF

110.8 KB Created: 2021-07-29 21:36:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 761b6974e02e56aeed3098f38e5f760a SHA-1: 8542117228be5ccac5d6afca2d00c9e159f83cef SHA-256: e3d5c15645082698c245a9cdb6a95bd3ec81ae1c6804c82669d4b468aea6a6ec
176 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the primary attack vector appears to be the malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 https://pixomot.ru/uplcv?utm_term=book+of+five+rings+summary PDF link annotation
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/983bfd5b0a238a36bb72eb7764e98cc9/gezerabixej.pdfIn PDF document text
    • http://sakuragiramenandsushi.com/uploads/files/zonibujevovugote.pdfIn PDF document text
    • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/36de50746e4aacbc6d39ab4c4bf1cd37/pasekezelofizebi.pdfIn PDF document text
    • http://grupophi.es/uploads/files/44289465613.pdfIn PDF document text
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/hslibggtg3s15krdlqrbba4aja/tisewonoxenezewakasi.pdfIn PDF document text
    • http://jumpstart.mobi/ckfinder/userfiles/files/xubufim.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e1b36c2144---jotekixadesijuf.pdfIn PDF document text
    • http://jinistudy.com/_UploadFile/Images/file/wapevavul.pdfIn PDF document text
    • http://absolutelyneon.com/userfiles/file/niderajamunelane.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16100de3d8ac0f---61430656245.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a11a33a3921---nebifodisuxeretatinumur.pdfIn PDF document text
    • https://conexus-study-abroad-travel.com/ckfinder/userfiles/file/53972385251.pdfIn PDF document text
    • http://geoman.cz/data/file/govajuxajoli.pdfIn PDF document text
    • http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c515a844e31---pipojaburejowosa.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2dfa52a94---kopug.pdfIn PDF document text
    • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3e98ea1850---manisonukuvaselinideboz.pdfIn PDF document text
    • http://forspeed.cz/ckfinder/userfiles/files/nazizamumudugixupezuv.pdfIn PDF document text
    • http://vita24h.com/uploads/userfiles/file/kemedupufisidexofedumodo.pdfIn PDF document text
    • http://157.230.241.115/image/upload/File/39681787602.pdfPDF link annotation
    • http://colorfulmedia.de/fotki/fotki/file/vibugevolikepi.pdfIn PDF document text
    • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4668ce80dd---20710809796.pdfIn PDF document text
    • http://banhangcongnghe.com/upload/FCK/file/72622258940.pdfIn PDF document text
    • http://sandsflooring.co.uk/ckfinder/userfiles/files/vevafajisifawukadaviv.pdfIn PDF document text
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607151f505aac---kakolepurifajunov.pdfIn PDF document text
    • 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14275 10836 bytes
SHA-256: b6aae4133014cfb8f7e8fa8fd358b7f20f6efddb8b27bd00a2cea54918a44c35
font_01_sfnt_off00015b93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15B93 17800 bytes
SHA-256: 2307204d7b6335fdd4ad58859140a93d61cb16a8b8ee3bd55cfb323d44c515b2
font_02_sfnt_off0001892e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1892E 2244 bytes
SHA-256: f72e9fc3de131bcb548c2a676d24e7f0cd9cdfe2fce96f79ba6370ff2afb7cfa
font_03_sfnt_off000192d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x192D3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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