Malicious PDF — malware analysis report

Static analysis result for SHA-256 df1d6cb42504b766…

MALICIOUS

PDF

68.7 KB Created: 2021-02-11 15:02:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 59883da637a144c17877ebb15d05f2c7 SHA-1: d1a368348c7f05c3c8fb4d044b658ba5499acdf3 SHA-256: df1d6cb42504b766e365e8ca6da863ea1c3cd7b186970e2daa1a4bbc0be22664
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • 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://yafferge.ru/wix?keyword=526+area+code In PDF document text
    • http://haustova.com/praise_and_worship_songs_2019anjv3.pdfIn PDF document text
    • http://aazzzry.space/41518683586x9srw.pdfIn PDF document text
    • http://vololagabedopi.22web.org/brunner_and_suddarth_11th_edition.pdfIn PDF document text
    • http://kedusigodozop.22web.org/weather_report_maigalganj_up.pdfIn PDF document text
    • http://hopecommunitynaz.com/poultry_house_plans_for_5000_chickensz83ks.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370762/normal_6013a440237fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409997/normal_600b3ddb1636a.pdfIn PDF document text
    • http://nijovilof.iblogger.org/fomeroruduxerinebito.pdfIn PDF document text
    • http://zetomanebegox.iblogger.org/padman_full_movie_pagalmovies.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454984/normal_5fedd7484d760.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423699/normal_5fcdb893dca9b.pdfIn PDF document text
    • http://melifalafijuz.22web.org/beard_trimmer_attachments_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451561/normal_5fd1b83ad5318.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/rivazixexuguri/drug_and_alcohol_policy_template_victoria.pdfIn PDF document text
    • http://wanowosogazod.rf.gd/44712788690.pdfIn PDF document text
    • http://zojasofox.epizy.com/banjo_kazooie_nuts_and_bolts_achievements_guide.pdfIn PDF document text
    • http://kagomovibinat.rf.gd/a_million_reasons_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/94226436554.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/wivito.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/nerutawuriza.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/ppi_claim_form_template_letter.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/bonovekigulobo.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/myanmar_new_books_free.pdfIn PDF document text
    • http://zeluzara.epizy.com/19038164969.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_off0000d0c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0C3 5040 bytes
SHA-256: 1bf3d8e79e31c276ac193ac018dd5168198f6d5b2ac2567cc740d0c5f99cafe9
font_01_sfnt_off0000e1f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F6 10428 bytes
SHA-256: 12ad6368ffc0a75de3954b153554665650a2f3c1682cb20b907dc7fa98d7d5ff