Malicious PDF — malware analysis report

Static analysis result for SHA-256 b317cb7482d8b8a8…

MALICIOUS

PDF

74.9 KB Created: 2021-02-23 19:49:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 632252b8f59a6ab9ec5927806854d6cc SHA-1: fe0c727d3fac22c00a5c1be2c846459c7c8aff49 SHA-256: b317cb7482d8b8a851f38ff9a63f1d6b2f752200a6845d9134baab17e6a6c9f0
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://jottigo.ru/wb?keyword=is%20uconnect%20free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409411/normal_5fd9f77a72e2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486061/normal_5feaf7b37b4b6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470014/normal_5fc9cfd1296e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490121/normal_601fcfdf3e764.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451039/normal_5fd354ed224a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403539/normal_600b63f1b34c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503309/normal_603257976db55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368494/normal_5fda041f2058f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474723/normal_5fece9beb111b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476127/normal_60057b5ddcf9d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vuzufexarevima/citrix_workspace_for_mac_catalina.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/ribavobebabedagodigen.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/french_present_tense_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/67375182394.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/10th_bipartite_settlement_file.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/93803633901.pdfIn PDF document text
    • https://s3.amazonaws.com/getizar/sky_movies_2019_south.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/99981508776.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_off0000e73a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73A 4572 bytes
SHA-256: b438f2680a21a2fcdcfa80090229c0dd3ed5066b38d02905abb3012243df00cf
font_01_sfnt_off0000f6d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D9 11748 bytes
SHA-256: 6bed7e9e6d5882d5eb2cc79cd24cdfdcc73933699e112b195dbf30a43d4739da

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