Malicious PDF — malware analysis report

Static analysis result for SHA-256 dad6f05f0cd5271b…

MALICIOUS

PDF

75.8 KB Created: 2021-02-14 11:01:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f94549a7e6763c50cfac7289c8624af8 SHA-1: ebfd1b4649388398bc370e41aaf688d12fb86080 SHA-256: dad6f05f0cd5271b2fdf26b2c3ca92a80edd4ca7f36b2ae6988b4b88365fb732
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 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.
  • 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://cdn.sqhk.co/gufemazibafi/hdjd2gh/20207012027.pdf In PDF document text
    • http://chuvashovfamily.ru/missiles_of_october_dvd7abeg.pdfIn PDF document text
    • https://cdn.sqhk.co/tofatuxurejo/hiT2hag/pearl_store_hawaii.pdfIn PDF document text
    • http://goodsun.space/good_afternoon_gif_for_whatsapp_freev1lur.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384650/normal_5ff354c09ed0f.pdfIn PDF document text
    • https://tatogupuragafa.weebly.com/uploads/1/3/4/0/134096405/womorofo_tuzepuxuve_xupudobazi_fujapibuji.pdfIn PDF document text
    • https://cdn.sqhk.co/josedinis/g9ag7ie/hard_boiled_eggs_time_chart_high_altitude.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401714/normal_5fd8d2bb0e968.pdfIn PDF document text
    • http://korsabarca.com/264125597276blja.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462775/normal_5ff258c3a9485.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379841/normal_602597f71d769.pdfIn PDF document text
    • https://tesiligozi.weebly.com/uploads/1/3/1/4/131407846/ecde7ee2bf69.pdfIn PDF document text
    • https://kegipulavuraruz.weebly.com/uploads/1/3/1/1/131163865/27b06344e.pdfIn PDF document text
    • https://cdn.sqhk.co/fimegasaz/WROYqjj/pumepomuzojumerix.pdfIn PDF document text
    • http://blekrossi.ru/86495030474nhy0a.pdfIn PDF document text
    • https://baarspo.ru/wb?keyword=court%20reporting%20cost%20containment%20inc.%20PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e7e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E4 5312 bytes
SHA-256: 8b8e6cd38164c969a57f2d6037724c1f97ca5c225618cc7763d0c22788dbbb6d
font_01_sfnt_off0000f9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F4 11840 bytes
SHA-256: 6e62cd27fc776b585adf13e1b160a15199e0255d74733f076388c3622ce2bf20

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