Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e02e426807fa3a1…

MALICIOUS

PDF

79.2 KB Created: 2021-10-07 05:04:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 9c31d6bf5d9e314ca4189c78c8f3b816 SHA-1: 0e3718b0696fb16d9a6fc452d5995983ccc9bdc3 SHA-256: 6e02e426807fa3a1ea3f0f33e176563952f8f49bfed3dca3445f811063b0523e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised CMS upload storage or appear to be part of a link farm. The presence of embedded URLs and the nature of the heuristics suggest the PDF is designed to redirect users to malicious sites, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://europawindow.com/app/webroot/img/main_content/files/nadige.pdf In PDF document text
    • https://cingenito.ca/upload/editor/file/31242748480.pdfIn PDF document text
    • http://kahsport.cz/userfiles/file/mowarunoku.pdfIn PDF document text
    • http://korea-seals.com/ckfinder/userfiles/files/sudoxasomiba.pdfIn PDF document text
    • http://fmmvn.net/userfiles/files/69705556902.pdfIn PDF document text
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161351a13eb85f---fikovetunuwagisekasasorin.pdfIn PDF document text
    • http://cephedanismani.com/images/pages/file/kemowomuxixarisevu.pdfIn PDF document text
    • http://www.prieteniitehnicii.ro/documente/file/90100173039.pdfIn PDF document text
    • http://kimbuunguyen.com/uploads/userfiles/file/popifopupositijolunuv.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f0b53d392a---59449471529.pdfIn PDF document text
    • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f524951068---25212038024.pdfIn PDF document text
    • http://4grd.com/cmsimages/file/rixevanumunamovupudim.pdfIn PDF document text
    • http://business-plan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/tuselodeker.pdfIn PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/97g7ncgmh9m10lmu2j0iqbq6fu/gujajidepudij.pdfIn PDF document text
    • https://luckysurface.itweald.com/uploads/files/612fb8c78a260.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d6aea92616---96589620733.pdfIn PDF document text
    • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/dfe717b233b4b3131e8c3e90de7ffc83/67711792988.pdfIn PDF document text
    • https://www.aicsmindia.org/ckfinder/userfiles/files/mazaledijipegona.pdfIn PDF document text
    • https://alubiasdetolosa.com/files/galeria/files/40486379490.pdfIn PDF document text
    • https://topclassgreenery.nl/images/file/37167258495.pdfIn PDF document text
    • https://woft-dining.com/webroot/editor-uploads/files/befasoxaroso.pdfIn PDF document text
    • http://www.civilhospitalpalampur.in/img/uploads/files/90864487398.pdfIn PDF document text
    • http://dmkert.hu/files/file/samukovizigeti.pdfIn PDF document text
    • http://indagosrl.it/userfiles/files/movimaxizu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=comedians+in+cars+getting+coffee+watch+onlinePDF 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_off0000cf32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF32 11040 bytes
SHA-256: 27bb0b762be17c946b09215eb9b28401a31f16a331e724e757ef97039a7fa0ba
font_01_sfnt_off0000e88c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE88C 18072 bytes
SHA-256: 22c99be121714258b245fa3187bc752b925789f485d67435087b844c6dfb8709
font_02_sfnt_off0001172c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1172C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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