Malicious PDF — malware analysis report

Static analysis result for SHA-256 3043c412699fd755…

MALICIOUS

PDF

54.5 KB Created: 2021-09-26 07:46:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: c49c2bbd97f53486372b6dd2bcaed291 SHA-1: 0e6dfa306f7ab55c0c5f8bf39d1d9f768ccbd817 SHA-256: 3043c412699fd7552dcf5fed5aa68ea24bbe6e1ce1895b01bd3d593a53f3ea4c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains a link farm pointing to multiple disposable hosting domains, suggesting an attempt to distribute malicious content or phish for credentials. The presence of numerous unknown URLs indicates a broad distribution effort.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6708

Heuristics 5

  • 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
  • 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://stoneappeal.in/FCKeditor/file/pexedamudamimasomosuz.pdf In PDF document text
    • http://pomelieagency.com/userfiles/files/23178026868.pdfIn PDF document text
    • https://hattoco.vn/images/ckeditor/files/95542025258.pdfIn PDF document text
    • http://pomocnaukowa.net/Upload/file/wuzawopotafaxuzuso.pdfIn PDF document text
    • https://mkart.it/uploads/file/xiluwogeruzef.pdfIn PDF document text
    • https://grup-insaat.com/userfiles/file/voveriv.pdfIn PDF document text
    • http://eotp.info/sites/default/files/fck/file/rijaginutubivora.pdfIn PDF document text
    • http://vekosgroup.ru/userfiles/file/92022592179.pdfIn PDF document text
    • https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/24957a3eff68cfaae5236758b74b44bc/loxiror.pdfIn PDF document text
    • http://giaexploring.it/userfiles/files/pisadas.pdfIn PDF document text
    • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc301b72cc---84659688221.pdfIn PDF document text
    • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/427198ceef141b27896decdd66e055bb/rerokabojupawefi.pdfIn PDF document text
    • https://markiza-trade.ru/admin/ckfinder/userfiles/files/doluzifesolaxejileme.pdfIn PDF document text
    • https://nusantarabet4d1.com/contents/files/wijodedinibodere.pdfIn PDF document text
    • http://iranjobex.com/cache/fck_files/file/97483537127.pdfIn PDF document text
    • http://kdsonline.org/userfiles/file/wetukanetubuzogaro.pdfIn PDF document text
    • https://traveletrust.com/basefile/traveletrustcom/files/zigixosibufez.pdfIn PDF document text
    • https://rmp-familienanzeigen.de/cms/files/75065538694.pdfIn PDF document text
    • http://ourdesign.hk/ckfinder/userfiles/files/tetumaxisolipok.pdfIn PDF document text
    • https://lingchuanfloor.com/app/webroot/userfiles/files/43746532163.pdfIn PDF document text
    • http://viorina-deko.com/images/file/81950679078.pdfIn PDF document text
    • http://prochem.vn/images/uploads/files/70703079356.pdfIn PDF document text
    • https://movie2book.com/userfiles/file/40065302502.pdfIn PDF document text
    • https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/0p05t0r7ipv4g2hbpoq3j1bkfi/kexigupub.pdfIn PDF document text
    • http://i-akparat.kz/ckfinder/userfiles/files/wiwituf.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=naruto+x+sasukePDF link annotation
    • http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/xazefedejeg.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC045 10132 bytes
SHA-256: 345bd43ff51b2528fff4f7b890f50272082d22d078d3c7b7f0897494d5942423

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