Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe9f5fda32debb3d…

MALICIOUS

PDF

91.5 KB Created: 2021-09-17 04:52:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 4878deba1acdcc8e77fe1249228f6c95 SHA-1: 3702713b45abb2b65f382880e9ba578a73bf950f SHA-256: fe9f5fda32debb3dffa457786c27522204266923ec54e35fdd18a12c0a686c41
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link farm that directs users to various websites, including those hosted on compromised WordPress installations. The ClamAV detection 'Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0' strongly suggests a phishing or trojan distribution intent. While no scripts were explicitly extracted, the nature of the links and the heuristic firings indicate a malicious intent to lure users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2680

Heuristics 5

  • 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
  • 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://clairerolo.com/userfiles/file/40480117027.pdf In PDF document text
    • http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/55304006828.pdfIn PDF document text
    • https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/161321b1a07e87---xebozeli.pdfIn PDF document text
    • https://ozmutludokum.com/userfiles/file/jetevo.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b8cdbee9ce---koromakemuwibumifujisa.pdfIn PDF document text
    • http://jindi2010.com/uploadfile/files/58564659869.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/161306f98cf882---kevulitepesasakem.pdfIn PDF document text
    • http://fotofolliasanlazzaro.it/userfiles/files/83816508803.pdfIn PDF document text
    • http://mottaing.eu/userfiles/files/pimatebupifetaw.pdfIn PDF document text
    • http://l-max.ru/userfiles/file/koruseputomu.pdfIn PDF document text
    • http://1000projects.ru/upload_picture/file/71725053140.pdfIn PDF document text
    • http://beastyenergy.com/userfiles/file/novujavigiri.pdfIn PDF document text
    • https://12waktu.com/contents/files/gividodejafut.pdfIn PDF document text
    • https://www.indoorclub-informa.com/boletines/img/file/dolunufaze.pdfIn PDF document text
    • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/34944843529.pdfIn PDF document text
    • https://magicdiscoradio.com/userfiles/file/53032633206.pdfIn PDF document text
    • http://ngoinvest.com/uploads/ckfinder/files/50611656166.pdfIn PDF document text
    • https://louvre.lv/res/wysiwyg/file/xenirisowugatul.pdfIn PDF document text
    • http://buren-kompanie.de/userfiles/files/larukanisofo.pdfIn PDF document text
    • https://khachsan295doson.vn/namthuan/images/news/files/jiwegu.pdfIn PDF document text
    • http://www.phuongdonggolf.vn/app/webroot/uploads/files/kenakotefenejipe.pdfIn PDF document text
    • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b212cc4135---muruxep.pdfIn PDF document text
    • http://quick-thailand.com/images/uploads/file/46325193125.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=keeping+up+with+the+kardashians+season+19+episode+1PDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001165f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1165F 19392 bytes
SHA-256: ee9391f1032683bfb82274a4d2969db51fe43762f442f3d41d7717c05b44ace8
font_01_sfnt_off00014913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14913 11116 bytes
SHA-256: e7ff0c851f11812d8ff215c4eb6561b3306aa6adb7e302efe0f84a86773ad751

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