Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7be0a2a9eed597e…

MALICIOUS

PDF

89.6 KB Created: 2021-06-29 12:45:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: 0f1a788bb93807d585452b242973a3a7 SHA-1: f70f75f2ee3e6ae7ba79263a6ee621555dd81196 SHA-256: e7be0a2a9eed597e4eec55b1e5b1c9b16095d46c5fc2e043eee7f2e13520e60c
216 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised CMS uploads and disposable hosting. The critical finding 'SE_SECRET_RECOVERY_LURE' suggests the document's primary purpose is to trick users into revealing sensitive recovery information, likely for financial gain or account compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://aduanaldelvalle.com/userfiles/file/lafezeg.pdf In PDF document text
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/ek9ajfnp5o5a9h2hrjkk9q3ac7/44977142625.pdfIn PDF document text
    • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160ae7c150b440---56574444818.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/hjtb54vr7fl863vq015sl8h9r1/joxuna.pdfIn PDF document text
    • https://tonwen.org/userfiles/file/42369568431.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/8d10cc7b6a7de7b5cedf837f95638fd4/sinododuridobor.pdfIn PDF document text
    • https://kopari.hu/files/file/lamupadonikeralekaraxow.pdfIn PDF document text
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbfe28a7035---45682159319.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/d0523b1aaf70cd39fa12b8f12cccd66a/tewokujepejibagis.pdfIn PDF document text
    • https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/9045689ee343003ca4d2f3f7edaeeaa2/2622480057.pdfIn PDF document text
    • http://111-orte.de/testarea/cwsCMSlight/media/files/zibulasekumonixonozi.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/948bbcdbe3997f25c48ec561f8bd2da5/riwimoxibafatapodorenaso.pdfIn PDF document text
    • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/a6d5119933a2743f918f729ecc7e064d/wosavadam.pdfIn PDF document text
    • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078c77746503---72420286459.pdfIn PDF document text
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c656ad5bf58---9165384314.pdfIn PDF document text
    • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e67c73318c---62595647569.pdfIn PDF document text
    • http://iglozawiercie.pl/zdjecia/file/43928999226.pdfIn PDF document text
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1609344108ba07---belovogo.pdfIn PDF document text
    • http://hondaotohaiphong.vn/upload/files/90834310639.pdfIn PDF document text
    • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ad007f9929e---88513101665.pdfIn PDF document text
    • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/fd3bd9ca8ce5c627640460e8719f0b8b/98622844723.pdfIn PDF document text
    • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/516d072e844b9b1c7b76de6bea32e17e/bikapu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=active+directory+certificationPDF link annotation
    • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/025c15f0bbd795595449f56b015cd5b5/76663589911.pdfIn PDF document text
    • 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_off0000fbe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE7 17340 bytes
SHA-256: 3f6c9a6345f83c06966cbcc8d2109cfd39af8825970743f89e19901b2b74affd
font_01_sfnt_off00012974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12974 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001418b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1418B 10416 bytes
SHA-256: 59d7db51cf44a6656b47a6184e446be11d895b5c92f88258fadef9825c0400db

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