Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2f0602f594758b9…

MALICIOUS

PDF

83.2 KB Created: 2021-09-04 04:18:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 8f29bc2bc72f64dc55c92d7ef023af2a SHA-1: dd23034ec9bbac3f8f56de482589066086eacc04 SHA-256: b2f0602f594758b94cf9110559284ce5ccd91fdeaea9c6926848701cef622a5c
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 high-confidence ML classifier and ClamAV detection. It functions as a link farm, directing users to numerous compromised websites and disposable hosting domains. The primary goal appears to be directing users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://traffictkt.com/viking1/uploads/files/99483590493.pdf In PDF document text
    • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/hhhrh1gbqsgha136rmsgjfbgs7/xafigofudubibufojebopuke.pdfIn PDF document text
    • http://sapaelitehotel.com/webroot/img/files/zomakoradonuxajasefuxewan.pdfIn PDF document text
    • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16091bea92decc---silezurapexo.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/67c7f6e191d7699c78970577fc18c4ce/jopixezikazojedomazo.pdfIn PDF document text
    • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/ae6a34265d1e8cb6a92cba2ea7302da1/16824960628.pdfIn PDF document text
    • http://3colorjazz.com/fckeditor/userfiles/image/gutovu.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbd90485543---tusukazopudumufixe.pdfIn PDF document text
    • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086d814693dc---45645236070.pdfIn PDF document text
    • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/a0na2cpd4aui9er8qv2gvff4ts/ginagibesibovutizuderor.pdfIn PDF document text
    • https://saam.vn/images/content/file/95237893930.pdfIn PDF document text
    • http://bindashnews.com/userfiles/file/74204592958.pdfIn PDF document text
    • http://htwy.com/upload/file/lozedexew.pdfIn PDF document text
    • https://beyondpins.com/calisma2/files/uploads/31238935572.pdfIn PDF document text
    • https://ystechpro.com/nbloom/fckuploads/file/vofemoxonozajudozaka.pdfIn PDF document text
    • https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dcdf8da3ac2---nomuzanutudapamuninov.pdfIn PDF document text
    • http://begemot-rus.com/uploadfiles/file/2021071711194173499.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/vug82bae4g0akn5ogvluqnlo91/26848758260.pdfIn PDF document text
    • https://kingdom.vn/userfiles/file/67998695910.pdfIn PDF document text
    • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/fb3ef518b995af3c36844f524ccb0bee/23576443220.pdfIn PDF document text
    • https://malashealthcare.com/userfiles/files/83301998251.pdfIn PDF document text
    • https://rcvizovice.cz/ckfinder/userfiles/files/47078224729.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=drz400+manual+fan+switchPDF 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_off0000dccf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCF 19004 bytes
SHA-256: 6e4ddd06b5df11ad7c8b2dee684ddd9b8584ff6cb74e398d76e18c28c51c1f06
font_01_sfnt_off00010e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E6A 10796 bytes
SHA-256: ca78f2a3cda2b4511a535ce7ee979ea883fec05398f9449f3d08aab681a17024
font_02_sfnt_off00012740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12740 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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