Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ff0d0245f6c519…

MALICIOUS

PDF

88.1 KB Created: 2021-07-04 15:58:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 513ab646bda860ac1e14b0b2825e4a90 SHA-1: 6dd7baef8c79ba9e63bea6e7c66ffc4b2c0decc8 SHA-256: 32ff0d0245f6c5196e77e909f9204a8acf79d62987b4aa4df9c60a3f7fb21255
156 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting a phishing or malicious redirection scheme. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to lure users to malicious content or exploit vulnerabilities. No scripts were extracted, and the document body was unreadable, so the attack pattern is inferred from the URL structure and heuristic firings.

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://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e590a222c---88848917801.pdf In PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2b5e3efa5---tisuguzoxifupibivi.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e43a749649---kafigipikinenenusawag.pdfIn PDF document text
    • https://ascinfratech.com/clientprojects/trading/file/liwipibinupinerizizozela.pdfIn PDF document text
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/275b5360fc511d1db3c6d775aa4964c6/81498640202.pdfIn PDF document text
    • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/e879acc77155f689526f4634647f4532/43175651737.pdfIn PDF document text
    • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad815d5f27e---dumatebazoxusepaligutes.pdfIn PDF document text
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/567802ca2c50fe1e461bec28c287c787/sifiwadaxurinelizoriwisa.pdfIn PDF document text
    • https://bnbcostaverde.it/userfiles/file/21641009800.pdfIn PDF document text
    • https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/f5a005fba7cc37ea6ead533901e9a928/43413677513.pdfIn PDF document text
    • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/8a65ff96cde0becad70c6c7bfca2cb99/vevameveziperewadule.pdfIn PDF document text
    • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a14d87e9427---13135410266.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/9607ab7c52414a45ef4d7f0b90cc4938/dibigubisematoj.pdfIn PDF document text
    • https://eyetracking.pl/userfiles/file/lonixadipagavatibugewo.pdfIn PDF document text
    • http://ahcxdq.com/uploads/file/141254351730.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b82622384a6---62017268720.pdfIn PDF document text
    • http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607b80c0202c9---32730011298.pdfIn PDF document text
    • https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/34ce5fc89f1327c611a152207f33f651/tanemogu.pdfIn PDF document text
    • http://emeat.ru/var/files/83584815119.pdfIn PDF document text
    • https://ph2020.org/FCKeditor/file/lejerizi.pdfIn PDF document text
    • http://pogotowienaukowe.com/Upload/file/20194995929.pdfIn PDF document text
    • http://watdoenwevandaag.nl/upload/30296040528.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608143cc4990f---54456332603.pdfIn PDF document text
    • http://askort.pl/Upload/file/bivewagata.pdfIn PDF document text
    • https://hometeamcorp.com/images/usr/pemanure.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=cash+5+winning+numbers+for+todayPDF 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_off0000f0ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0ED 11360 bytes
SHA-256: 26c9ca9aacbc8435fe57b919ed6cef29d8d8f79ef04fd84345f2d049081c62b4
font_01_sfnt_off00010b65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B65 18056 bytes
SHA-256: 6c62051e10056ab7ab8779cd14f42d28b19348f2f1ae8f13d672f190472caea3
font_02_sfnt_off00013b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B1E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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