Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d5e5fddc9dc0c8c…

MALICIOUS

PDF

68.6 KB Created: 2020-12-02 03:46:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-11
MD5: e2f1d5d935e8bbc08dfaf47800e1459c SHA-1: 46540e906e52fd339cb4d4194c00f59c88fe3fb2 SHA-256: 0d5e5fddc9dc0c8c8feb6708398e953d449352681d948f3123742392b284af7b
314 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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.
  • 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://trafffi.ru/wb?keyword=argosy%20university%20atlanta%20transcript%20request%20form In PDF document text
    • https://cdn-cms.f-static.net/uploads/4376850/normal_5fa047aca773f.pdfIn PDF document text
    • https://sokexuwog.weebly.com/uploads/1/3/4/3/134351495/fadejamokukuxebetava.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426421/normal_5f9aa4369a9e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414860/normal_5fb2ce091c27a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366364/normal_5f87cfee8c86c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387814/normal_5f9b4394436fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370767/normal_5f89b82b02585.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/reasonable_doubt_book_1.pdfIn PDF document text
    • https://puzagetidorijes.weebly.com/uploads/1/3/4/4/134495880/4644289.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386087/normal_5fadf0ef31f04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380223/normal_5f92985c49401.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374835/normal_5fa6af7aa75b0.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000cbeb.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000cbeb.bin)
    • https://uploads.strikinglycdn.com/files/da2e9b43-076e-4b0f-8594-3f34b01d603a/gejarimoxokana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acbdf003-25a4-4c66-bd07-0dcb025914d6/bomumarujararopabefavar.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 extracted file (font_00_sfnt_off0000cbeb.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBEB 5612 bytes
SHA-256: a3ec8876451213c32be74ea86d7a7351a4650fa6cd3fd226837cff3de43385bb
font_01_sfnt_off0000df06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF06 11312 bytes
SHA-256: bb54e0f5f36b153bc59456ec0e475a9976611a9d725b7d91269da78299552633