Malicious PDF — malware analysis report

Static analysis result for SHA-256 26bb3576748d1e8d…

MALICIOUS

PDF

66.9 KB Created: 2021-02-11 15:21:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2ea61cdcfbd4e8eed78db015ce885a3e SHA-1: 61ab37145c3225dbe43182ad177a58e43ae76e0d SHA-256: 26bb3576748d1e8d5777c4344b7546129cd52e51ddd6fab50543f6791c5b8d86
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=america+the+story+of+us+division+worksheet+answers PDF link annotation
    • http://usersdeviceprotectionservice.site/nuzenirejolapuzub3o9ee.pdfIn PDF document text
    • http://antonio-ita.space/rexoxemusaporhkw3j.pdfIn PDF document text
    • http://soul-felt.com/comparatif_et_superlatif_exercices_francaisxtxlv.pdfIn PDF document text
    • https://gufogejerujog.weebly.com/uploads/1/3/1/4/131406717/basuzilamilamol_mafor_buxevewusepuz_vivutowixobise.pdfIn PDF document text
    • https://cdn.sqhk.co/namulofilox/uhjjggg/pezavikigabovib.pdfIn PDF document text
    • https://cdn.sqhk.co/loberutebe/egjVhjc/19339566690.pdfIn PDF document text
    • http://osthondroz.com/bdo_ramlo_amity_guidee65fv.pdfIn PDF document text
    • https://figapizezedop.weebly.com/uploads/1/3/4/3/134364787/30d318a99dbe.pdfIn PDF document text
    • http://rameautbxy.space/mibolerarogipamarekia60.pdfIn PDF document text
    • https://dakubotamijez.weebly.com/uploads/1/3/2/7/132712147/6856400.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiminiv/jqhijfQ/fekonuwifewepuzu.pdfIn PDF document text
    • https://judumufef.weebly.com/uploads/1/3/0/7/130738812/1998209.pdfIn PDF document text
    • http://small-italy.space/recommendation_letter_for_dialysis_nursessl3fg.pdfIn PDF document text
    • http://nefotibabi.iblogger.org/annamacharya_tamil_movie_video_songs_free.pdfIn PDF document text
    • http://originalhallyu.com/94830230827vz63a.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/bawalidamovidud/laxuko.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/nenujegumulira.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/turenikere.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/xidatano.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_off0000c8da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8DA 5536 bytes
SHA-256: 2c5a2453d375e8a9d4c2b4ff2a4f54b44add2fa809878feba3e291ffe9a475fa
font_01_sfnt_off0000db9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9E 10016 bytes
SHA-256: 3648b95bcde92bba36ff3380708301b66b6ebda73055986d0ef01b970a783c03