Malicious PDF — malware analysis report

Static analysis result for SHA-256 2244dac048be0723…

MALICIOUS

PDF

83.4 KB Created: 2021-09-04 13:29:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: fafa7362a25f934f9571a5a4d06bab3c SHA-1: 3916930dddb94fe71aaf0cdee14779147a6364dd SHA-256: 2244dac048be072314da6b2e1c1f3f1d116358a45c5591deb5a463becf3926bd
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains numerous external links, many pointing to compromised websites or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the overall structure indicate a phishing or malware distribution attempt, likely leveraging a PDF exploit or social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9833

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://pixomot.ru/uplcv?utm_term=ate%C5%9Ften+g%C3%B6mlek+pdf PDF link annotation
    • https://abhimaninteriors.com/ckfinder/userfiles/files/74336084230.pdfIn PDF document text
    • https://jcmimoveis.com/userfiles/file/73170683908.pdfIn PDF document text
    • https://bedandbreakfastchia.it/userfiles/file/82335841786.pdfIn PDF document text
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/db39gb7eat3bgd2ktgc508o8co/31812769947.pdfIn PDF document text
    • https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/9acbgbr6bk6l5gadq7lc4pb956/fejefugosoxegixa.pdfIn PDF document text
    • http://net-marketing.hu/images/files/rosedale.pdfIn PDF document text
    • http://antifftech.com/uploadfile/file///2021050104200664.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160c67d474fa45---xaken.pdfIn PDF document text
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9945e820b---82693832080.pdfIn PDF document text
    • http://indyskischool.com/ckfinder/userfiles/files/nonexagivolezi.pdfIn PDF document text
    • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/kt455k8l85eujbsbrp0994pjvi/jolapiwinuzeg.pdfIn PDF document text
    • https://digireg.lu/upload/gelekevawinaf.pdfIn PDF document text
    • http://animationcoach.com/userfiles/file/43194442908.pdfIn PDF document text
    • http://hondasushi.com/uploads/files/35746356098.pdfIn PDF document text
    • http://sp3siemianowice.pl/userFiles/files/94183297832.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/161070ad80640d---45704449485.pdfIn PDF document text
    • http://safetyassessmentsolutions.co.uk/ckfinder/userfiles/files/wasopuzivolitamowezakubi.pdfIn PDF document text
    • http://irinabailey.com/upload/files/84156694533.pdfIn PDF document text
    • https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/bd23265fa8d8a8f999480fd195a7bb8e/fazivemugusolovepasoguni.pdfIn PDF document text
    • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/p4jbpa4d171o9sde62l24hl7bt/kixawejivagajomaka.pdfIn PDF document text
    • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f370f90fcd---fusisutaradadu.pdfIn PDF document text
    • http://scard.vn/app/webroot/uploads/files/juzozaboxulofakexuki.pdfIn PDF document text
    • http://triatlonbizuterie.cz/sites/default/files/file/wazubukemekoleze.pdfIn PDF document text
    • https://oteaexpert.fr/cite_imgs/file/dexativalozoxupubupe.pdfIn PDF document text
    • https://burgaseguros.com/userfiles/file/juvonuwipimixoxesokol.pdfIn PDF document text
    • http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607db5454b01b---93102035234.pdfIn PDF document text
    • http://apartmany.cucoriedka.sk/data/files/51449022601.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_off0000e018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE018 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f82a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF82A 18772 bytes
SHA-256: 2b3c621c4583fef0f38f43238d8298b2cd1ca5991597adaa553a1446e9e6dd71
font_02_sfnt_off00012600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12600 10728 bytes
SHA-256: 8343d8eacd5038d97de65e59a3b05d9a9f26b725bda7470df4cfcd31165f3cd5

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