Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea265a1faa8a0ea6…

MALICIOUS

PDF

69.8 KB Created: 2021-02-19 01:57:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 04f5aab1bf0eabd9923dc30560e0fd0d SHA-1: 18fc1aaf7d8a793613319c78e8552e29390fe289 SHA-256: ea265a1faa8a0ea6fc2a192af02f85148ed9b4d6ecf2c8b56f143e145bcc6d3a
196 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 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.
  • 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://jacksth.ru/wix?keyword=tipos+de+parrafos+de+desarrollo PDF link annotation
    • https://radogatibemif.weebly.com/uploads/1/3/2/8/132815767/2e1a67.pdfIn PDF document text
    • https://pakosikan.weebly.com/uploads/1/3/0/7/130740558/623263ff0418.pdfIn PDF document text
    • https://jimivisimobud.weebly.com/uploads/1/3/4/9/134901817/9cf6c.pdfIn PDF document text
    • http://nojosomefoviw.66ghz.com/toduvozoxagipat.pdfIn PDF document text
    • https://degiviwab.weebly.com/uploads/1/3/2/6/132680905/wovigikivosat_puvajefepele_pedowosine.pdfIn PDF document text
    • https://tenemetit.weebly.com/uploads/1/3/2/6/132696414/loxaxuzuki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tubasip.epizy.com/36438147379.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/sownictwo_angielski.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/vijupo.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/cardcaptor_sakura_tarot_cards.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/aprender_aleman_completo.pdfIn PDF document text
    • http://tunawumananedi.rf.gd/egyptian_drug_guide_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/circuit_court_case_information_alexandria_va.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/21581318579.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/56510956049.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/bowoxekuv.pdfIn PDF document text
    • http://lekowezitodog.rf.gd/49714884108.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/seguzosur.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/37086877567.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_off0000d2be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2BE 4984 bytes
SHA-256: 6fa47587471683561437b55a02a181f5cfaed18f57a081da308ee6d86c8e8c25
font_01_sfnt_off0000e3bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3BC 11536 bytes
SHA-256: 04abe9b3cdaaceac47d271c431360bfd0d30966e264667ff6c18223608e881c4