Malicious PDF — malware analysis report

Static analysis result for SHA-256 6919eac1b170e11b…

MALICIOUS

PDF

66.9 KB Created: 2021-02-15 15:59:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c08ef9902aa123931626e6a9f0a9cf79 SHA-1: 093df7ac3d49db9d1d19d0ea76a124ee768b3908 SHA-256: 6919eac1b170e11bdc273dc6ac9b95cf1feb13076e8fdcc70fd2ae1db0c31c6f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://bologen.ru/wix?keyword=eaton+county+courthouse+friend+of+the+court PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4501770/normal_5fde6f1a457b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408599/normal_6012b1895da8b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387581/normal_5ffd517a8def6.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/pizivurapab/komatuwokuj.pdfIn PDF document text
    • http://kamaxunavag.epizy.com/28203490949.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/excerpt_from_the_odyssey_the_sirens_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/roald_dahl_magic_finger_worksheets.pdfIn PDF document text
    • http://judejelalub.rf.gd/technical_report_cover_page_design.pdfIn PDF document text
    • http://kesajuwigiferu.epizy.com/base64_string_to_file_javascript.pdfIn PDF document text
    • http://ligumawi.epizy.com/thermal_radiation_lab_report.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/dark_souls_3_third_boss_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/92592293577.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_off0000c853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC853 5136 bytes
SHA-256: d9337ad34f8db44cea8ec05664dd144091f70ba0fb40aa1265d0a164bf5d892b
font_01_sfnt_off0000d9d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D1 10896 bytes
SHA-256: 99be2c8e423b258c8ab953f2fa6e697c1ac3d426492f5548ad1d0372eecebacd