Malicious PDF — malware analysis report

Static analysis result for SHA-256 62dd652d956f1d2e…

MALICIOUS

PDF

89.4 KB Created: 2021-08-12 06:26:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: ca32c7b81acc23c44e02087e658a328c SHA-1: 319ace610cb829754c62e1e165f0e0500e5ff5f4 SHA-256: 62dd652d956f1d2e75bd86e4a47487f438d599dee5491e5b5450f9c80a751df4
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document exhibits characteristics of a phishing lure, indicated by a high number of embedded URLs pointing to compromised CMS uploads and disposable hosting. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to phishing or malware distribution sites. No scripts were extracted, but the extensive link farm points to a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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 https://philabc.ru/uplcv?utm_term=indian+movies+full+hd+1080p PDF link annotation
    • https://accuratesearch.com/userfiles/file/78561332027.pdfIn PDF document text
    • https://bazab.ru/ckfinder/userfiles/files/64368299456.pdfIn PDF document text
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c522564d293---sapegawokesigawidil.pdfIn PDF document text
    • https://rosewoodcity.org/nbloom/fckuploads/file/gadesetiguwalimukefefemid.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160eca95034d67---sesasepatabinakifigig.pdfIn PDF document text
    • https://santehsevast.ru/userfiles/files/lutusonodewotenurawi.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b46e841a0d2---18674049791.pdfIn PDF document text
    • http://alvitraders.com/files/todoxogopizifo.pdfIn PDF document text
    • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/6c97f5fde329d66c66394b87778307c9/kojobizuta.pdfIn PDF document text
    • http://de-ko-gmbh.com/ckfinder/userfiles/files/xisonetu.pdfIn PDF document text
    • http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac6b8ab18c---90995365426.pdfIn PDF document text
    • https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/bd04852031b2471398808622ed63b79b/luwuvigonujatow.pdfIn PDF document text
    • https://businesslife.com/content/files/91590092807.pdfIn PDF document text
    • https://bangprice.combangprice.com/beta/cms_image/file/gaxesi.pdfIn PDF document text
    • http://sakem.org/userfiles/files/89437298628.pdfIn PDF document text
    • http://alnoorcity.com/userfiles/file/98548180519.pdfIn PDF document text
    • http://computergramm.com/userfiles/file/17376243573.pdfIn PDF document text
    • https://behbehaniprojects.com/uploads/files/48655050767.pdfIn PDF document text
    • https://talaa-obour.com/webmisr/uploadwebmisr/file/78672838460.pdfIn PDF document text
    • http://yjccnc.com/upload/files/22731615525.pdfIn PDF document text
    • https://www.sensiblemachines.com/ckfinder/core/connector/php/files/91795492005.pdfIn PDF document text
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bf65f8c4b00---63710287433.pdfIn PDF document text
    • http://i-p-p-c.com/ckfinder/userfiles/files/pegorodekelozapovivi.pdfIn PDF document text
    • http://dzbnf.com/upload/file///89350311886.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f536.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF536 11064 bytes
SHA-256: 7b0a6c90b129f2516940afd1aaaa4605f83feb99b011b52d6a4be06af6bf3160
font_01_sfnt_off00010ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EC1 17824 bytes
SHA-256: 5e921b83ff90e7d62e19fc71f51b59507ae07cff1832c657836d35c65d5dc65c
font_02_sfnt_off00013d65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D65 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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