Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee31ef3e4cf65e95…

MALICIOUS

PDF

62.5 KB Created: 2021-06-18 18:06:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: dbd5bcfaa360a02b11927ccc24961808 SHA-1: fe4c41eda314677750033c9c7d509082bb377963 SHA-256: ee31ef3e4cf65e9565c88e82b52a9ba3a55baad6f34d505653a896a74e567d7a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm designed to redirect users to various websites, one of which is associated with a game download lure. The presence of multiple external URIs and a high ML score indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it is designed to facilitate phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8152

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://ketchas.ru/uplcv?utm_term=shadow+of+the+tomb+raider+definitive+edition+torrent PDF link annotation
    • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082f15a7cec2---wofebofeb.pdfIn PDF document text
    • https://preprodpcb.com/userfiles/files/kogefokusovojibixogap.pdfIn PDF document text
    • http://logistra.fr/ressource/site-image/files/fozomisetaxerafawolom.pdfIn PDF document text
    • http://1970fchs50thclassreunion.com/clients/1/19/19770213778af891f1b13fa25f964f50/File/59521289130.pdfIn PDF document text
    • http://jiangsutravel.kr/userfiles/files/20210614_141200.pdfIn PDF document text
    • https://puppometalli.eu/file/44077745687.pdfIn PDF document text
    • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/c0c4f858d7423ca2b3b6c32e2472ef38/filafogabedexoxotesulajit.pdfIn PDF document text
    • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ac6a3ab42a6---45145218557.pdfIn PDF document text
    • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1aa5a023b---kedimavefedurex.pdfIn PDF document text
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fec54e7cd1---62532521654.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/5a101f3b80f534b7b74cf179be600139/89385077492.pdfIn PDF document text
    • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b968b87e7---33718623351.pdfIn PDF document text
    • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/d59fb28424d132369c44ae1a0e5e270f/4009593717.pdfIn PDF document text
    • https://anmoul.com/userfiles/file/64279333408.pdfIn PDF document text
    • https://esz.jp/img/editor/files/54527105681.pdfIn PDF document text
    • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160984ce98decb---kolanafogoriwufisa.pdfIn PDF document text
    • https://xuantruongtech.com/images/ckeditor/files/97045827977.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD199 5332 bytes
SHA-256: 5dcd07c028205c09941b44abdd09a34b32dfa7702b5ceb97cce734c6733eb493

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