Malicious PDF — malware analysis report

Static analysis result for SHA-256 69c7093d62c5dccf…

MALICIOUS

PDF

78.4 KB Created: 2021-09-03 06:04:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 768f98a6258b5c40319ef3c1f4de0030 SHA-1: b09c5358f445d976ac63e4229fda13965e71890f SHA-256: 69c7093d62c5dccf0fcd0de6c1f87e0e813723198c2097e79a2cc7acf78b4831
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file functions as a link farm, containing numerous URLs pointing to various domains, many of which appear to be compromised WordPress sites. These links likely serve to redirect users to phishing pages or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9917

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://irlanc.ru/uplcv?utm_term=honda+fit+2008+manual+espa%C3%B1ol PDF link annotation
    • http://geofer.eu/userfiles/files/fubamodowupewosijaroguweg.pdfIn PDF document text
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/t99ba7sccatfg507i9m8ub2jh6/55653162747.pdfIn PDF document text
    • http://scuderieverdina.it/scuderia/userfiles/file/pedovosefolituxevasiti.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f79c32a2dfe---kabozirabesoxoleli.pdfIn PDF document text
    • http://thelonerangerfanclub.com/ckfinder/userfiles/files/74883163174.pdfIn PDF document text
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/9a526a058830ea03a76430ca9ee6123d/mekapomokikidoterur.pdfIn PDF document text
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/bict4o7bhglirm9r70r42kd3s1/42482394740.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610ddc3f434e8---59347089154.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077e09f9dac7---nenob.pdfIn PDF document text
    • https://bawwabatrizq.com/userfiles/file/zejapusuvunutitirexijoji.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/16116f7814ade7---66941762249.pdfIn PDF document text
    • http://haustechnik-hagenauer.at/wepubiwugosar.pdfIn PDF document text
    • https://growyourmoney.in/userfiles/files/jinibolebojarogodo.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab3a8119501---83719931423.pdfIn PDF document text
    • http://originalavto.ru/userfiles/file/bizelasulitakav.pdfIn PDF document text
    • http://pass38.com/images/contentimages/files/xatutivinuvalejuru.pdfIn PDF document text
    • http://quatanggiabao.com/images/uploads/files/90567968494.pdfIn PDF document text
    • http://monkey-do.net/userfiles/file/xelig.pdfIn PDF document text
    • http://chanakyaaerospacedefence.com/userfiles/file/dokefiperovemufofes.pdfIn PDF document text
    • http://parkwaywest1974.com/clients/861606/File/lowotulisusugeted.pdfIn PDF document text
    • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160b95577cb820---fafixudomeresivalarajagi.pdfIn PDF document text
    • http://er-trans.com/img/produkty/files/58238851857.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b97cbd0a52c---31118308047.pdfIn PDF document text
    • https://motacademy.it/file/jodadonitaviwa.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a8b769cef9---sagovowas.pdfIn PDF document text
    • http://e1pl2.nazwa.pl/busy/fotki/file/66265561967.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_off0000c766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC766 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000df7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7D 11308 bytes
SHA-256: b26bee63892f72a4c06e70e7062d55ca4eae16dacd026088c82449d582acc076
font_02_sfnt_off0000f9ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CE 18428 bytes
SHA-256: dbca8f8fe6a98f2567fe05b7c93ee9dd9a499088af2935de946ce17f2307fa8a

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