Malicious PDF — malware analysis report

Static analysis result for SHA-256 876ee2e0882eec75…

MALICIOUS

PDF

72.8 KB Created: 2021-02-27 07:47:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 564471ed889a88dc3d66d53c03d7217e SHA-1: 33485b0c8b3cface2c303e6523d51f04d490ba90 SHA-256: 876ee2e0882eec75c6c5eae5786c8458102647de33ed2812e34b2f9e7ad83422
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://seumenha.ru/wix?keyword=unblocked+indie+horror+games PDF link annotation
    • https://vufofameti.weebly.com/uploads/1/3/0/8/130874118/zemudufuva.pdfIn PDF document text
    • http://fenofaxizuva.22web.org/823734162.pdfIn PDF document text
    • http://dejozuguwulu.22web.org/swtor_synthweaving_guide_1-600.pdfIn PDF document text
    • https://gajodiwu.weebly.com/uploads/1/3/4/0/134042407/jikili_kipori_wilip_lajetizulasiri.pdfIn PDF document text
    • https://limorevoxa.weebly.com/uploads/1/3/4/6/134611026/gezidezetosul-tomubetunotoj-fopilugina-keduzu.pdfIn PDF document text
    • http://gedawirij.66ghz.com/31763024141.pdfIn PDF document text
    • https://cdn.sqhk.co/fokatekox/Oihhiqa/41100872750.pdfIn PDF document text
    • https://cdn.sqhk.co/moxinivo/1jgdlKY/pug_dog_wallpaper_hd_download.pdfIn PDF document text
    • https://cdn.sqhk.co/joduragenep/iZghcha/goalrilla_led_basketball_hoop_light_installation.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/zolerazowubow/weighted_scorecard_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/riwuzemimixet.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/cronulla_beach_poem_question_and_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/malunonewodufon.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/wrath_of_the_righteous_demons_heresy.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/give_me_liberty_textbook_answers.pdfIn PDF document text
    • http://tipixerokofor.epizy.com/25644775161.pdfIn PDF document text
    • http://witibepav.rf.gd/compliance_policy_statement_template.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_off0000e0f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F5 5548 bytes
SHA-256: 9f94872e9e86f94f4bf63d8054ed92f7630239affb66790b460471ca3a6fc62b
font_01_sfnt_off0000f3a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A8 10208 bytes
SHA-256: 13efa0ec3a3ce454b9caf8fd065185a5aab39586270192b5430bbfb19e890ee0

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