Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a6dd340aa5b49d9…

MALICIOUS

PDF

344.5 KB Created: 2021-06-07 08:46:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: dd631f7488c6bf046f0b5d47a0ca3b94 SHA-1: 0b25c5a73ba2e4e46e357f801c76628e7ec6a99a SHA-256: 2a6dd340aa5b49d9f98dc2fd3e8837c5af89092f36d36255b8b3cc96d1b35af5
226 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1534 Steal or Modify Data T1059.007 JavaScript

This PDF document is identified as a credential phishing lure, impersonating Netflix and directing users to a malicious URL. The document body, though heavily obfuscated, contains references to 'fruit ninja unblocked games 66' and appears to be part of a lure to trick users into providing sensitive information. The presence of multiple external URIs and a link farm pointing to compromised CMS upload storage further supports the phishing and potential malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9854

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://queure.ru/uplcv?utm_term=fruit+ninja+unblocked+games+66.
  • 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://queure.ru/uplcv?utm_term=fruit+ninja+unblocked+games+66 PDF link annotation
    • https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/7ff4e159eb6786de2e5b32ba5ddc3fa1/45201967386.pdfIn PDF document text
    • http://ildungrice.com/fileupload/fckeditor/file/banikizivabexowipatex.pdfIn PDF document text
    • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0b9771e16---90227518368.pdfIn PDF document text
    • http://arci-mp.fr/admin/File/54252948615.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608b598767b08---85148517766.pdfIn PDF document text
    • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a35b651ab3---pumagotolene.pdfIn PDF document text
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/ce9d8a6857de897ff540bcd24a2a7f2b/temujoz.pdfIn PDF document text
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16078a62c16921---peputavirojowekukado.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d8ce80e1b---naxutikaradi.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8443323033---mozimakijuworubedez.pdfIn PDF document text
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ecdb10be84---69467843193.pdfIn PDF document text
    • http://czdashan.cn/uploadfile/file/2021051905451673499.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076dbbf46cf7---sirisudukaz.pdfIn PDF document text
    • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/72780ec574ee90f368de7278eec5885d/xodesex.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/c683829ca6bed78d00c0940e898f147c/xorurodewirodibup.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000513eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x513EB 5648 bytes
SHA-256: aa928d812ab1cf764ebb8c7ef447b2580b2afbccae100ffe65cd907bde425ba6
font_01_sfnt_off0005270f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5270F 12916 bytes
SHA-256: 981116ea6230972da396ab74f1fe6f6fde2f9459e629ea7a68546034d1601324