Malicious PDF — malware analysis report

Static analysis result for SHA-256 09e3bedb4e303ebf…

MALICIOUS

PDF

87.6 KB Created: 2021-07-23 20:19:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: f06dc0d402eb03a4ebd9f32c79e50b34 SHA-1: 96dc6c5099df412037c997f924cfe7a934a7bfb2 SHA-256: 09e3bedb4e303ebf583bc720b0a1cfe55ce83b40f3b02a07822f5858bf05bc08
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple distinct hosts, many of which appear to be compromised WordPress sites or disposable hosting, suggesting an attempt to obscure the final destination. An embedded JavaScript stream was also detected, which could be used to facilitate further malicious activity or redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://www.portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/nesazevokepajezoz.pdf In PDF document text
    • http://amdind.com/userfiles/file/45576554241.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/f1dd0da54e56e910b2a9b9c62551e7b1/setitum.pdfIn PDF document text
    • https://sarujiovalente.com/wp-content/plugins/super-forms/uploads/php/files/d3b4q45mefc5cjat529oq2uou5/mowemujuredanakak.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b65a96a69e2---zaxawisedegiru.pdfIn PDF document text
    • http://samtekelektrik.com/files/99909682910.pdfIn PDF document text
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160878bf504205---34851991371.pdfIn PDF document text
    • https://gifarlcm.com/upfiles/editor/files/32468269964.pdfIn PDF document text
    • https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/e10994d16aeee42e70589454c2c5c3af/nenerosaginikeli.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/qc3lojphd9uoli2rnb597isjr3/xagiwonolaxadofonilarebev.pdfIn PDF document text
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/92cc0a0d1fea35cf47ca894223dfea62/63757171267.pdfIn PDF document text
    • https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/4d171k9qo3c6n18vq6c8hnpttn/30164316754.pdfIn PDF document text
    • https://cicadit.ro/UserFiles/file/89608753510.pdfIn PDF document text
    • https://solener.info/ckfinder/userfiles/files/46407227032.pdfIn PDF document text
    • https://activepymes.com/pub/file/lakasixidudoxegu.pdfIn PDF document text
    • http://oresteruggiero.com/userfiles/files/mefoxisakinizepudivudav.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608f2c03b486e---vetevopina.pdfIn PDF document text
    • https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/06e54f7ce20942c49316d5ff5009da2a/70474258909.pdfIn PDF document text
    • http://vietxetai.com/wp-content/plugins/super-forms/uploads/php/files/i0mgdat1qdr9hgbgk46f27vrbn/tegegapojo.pdfIn PDF document text
    • http://ingpoggi.eu/userfiles/files/jepiposimibibotusesoraso.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094d52cdbea5---68120188106.pdfIn PDF document text
    • https://kodcomputers.ro/2664/uploads/vitopunosukatofofuva.pdfIn PDF document text
    • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/4da7d90f850f28b93398b7602b3b40bf/wituro.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=how+to+drain+keurig+k+classicPDF 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_off0000f311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF311 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010b23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B23 16860 bytes
SHA-256: 6e5970aaf3e76dfb15fb432172817685961a263a38767e935c800ab4913d72ee
font_02_sfnt_off00013719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13719 10816 bytes
SHA-256: cd6d153581d5aa79d11a142b64e9cd429f09d18b63fc817cc1870447fc222805

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