Malicious PDF — malware analysis report

Static analysis result for SHA-256 cefc27cc12d0293e…

MALICIOUS

PDF

68.4 KB Created: 2021-01-22 13:42:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6f13b6bdf2858933b4431aef700c663f SHA-1: 4936bce626bf118019db3e4ae4b479ad0d15db52 SHA-256: cefc27cc12d0293e0691bf78228d731aca2d718e87d5f4acaa8413cfa5462e22
146 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
  • 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.
  • 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://seumenha.ru/aws?utm_term=cisco+catalyst+3750g-+24ts-+24+datasheet PDF link annotation
    • https://rulorakaduf.weebly.com/uploads/1/3/4/4/134480735/41cd0fd038ff66.pdfIn PDF document text
    • https://nixalimug.weebly.com/uploads/1/3/2/6/132680811/fa515c9.pdfIn PDF document text
    • https://fekobuwag.weebly.com/uploads/1/3/1/8/131858403/fufujudife-solojewaveju-dibek.pdfIn PDF document text
    • https://cdn.sqhk.co/jezuleku/f1RibpZ/find_word_cookies_answers.pdfIn PDF document text
    • https://bipixexomalexu.weebly.com/uploads/1/3/4/3/134349320/tukusudoreva-vugijalosijele-dexulilozapopa.pdfIn PDF document text
    • https://cdn.sqhk.co/nolagutotato/iaqbFjd/world_market_stores_in_georgia.pdfIn PDF document text
    • https://mabatuba.weebly.com/uploads/1/3/5/3/135303696/14f5c9d7177cfe.pdfIn PDF document text
    • https://sibanomo.weebly.com/uploads/1/3/0/9/130969588/xewulunaduduzu.pdfIn PDF document text
    • https://marejipafikelor.weebly.com/uploads/1/3/1/4/131437604/sojagedojiwarunokodo.pdfIn PDF document text
    • https://site-1258606.mozfiles.com/files/1258606/profile_page_template.pdfIn PDF document text
    • https://bewabolome.weebly.com/uploads/1/3/5/3/135347927/beminefipiporu.pdfIn PDF document text
    • https://zoxiniguve.weebly.com/uploads/1/3/4/5/134584112/3042511.pdfIn PDF document text
    • https://cdn.sqhk.co/merutigujet/MHicid8/61846163794.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/jizubisetebof/wisizewetixatekulanuju.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/kowajowulepodatuni.pdfIn PDF document text
    • http://rusozetowozo.epizy.com/92499695482.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/21455564854.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/17870798741.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_off0000c92d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC92D 5876 bytes
SHA-256: 14fe04d692a234010224e6d9ff19d09f818e0f4e59c63cba8c013018f93805b8
font_01_sfnt_off0000dd48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD48 11344 bytes
SHA-256: e7e1f18f0665d38b4e8ba0f13aad7f2ef984e9720a7cd75675f9d2fdbef81cd1

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