Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6dc1d5299742801…

MALICIOUS

PDF

72.2 KB Created: 2021-02-13 10:54:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 87f9752fb6d4a9e50bf303bfd7183420 SHA-1: 5bdf67109e9c22821e837aea12aa60af41a1bc8b SHA-256: a6dc1d52997428012707714c3dd4e32b619bf8539548b35d9a9f7c58bd0d9767
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=body+organization+worksheet PDF link annotation
    • https://kigadipokifexi.weebly.com/uploads/1/3/0/8/130813079/5c943.pdfIn PDF document text
    • http://instapriz.online/manual_mikuni_tmx_38l3jmm.pdfIn PDF document text
    • http://pet-guru.shop/twitter_image_er_chromebrzop.pdfIn PDF document text
    • https://bamewubi.weebly.com/uploads/1/3/2/3/132303354/teruxiwirul.pdfIn PDF document text
    • http://mon-compte-cmb.best/film_basara_heroes_24fn6e.pdfIn PDF document text
    • https://vafopizinenited.weebly.com/uploads/1/3/4/4/134480139/javikobokuwol_fasijitabelebum_pizirolema_pasezum.pdfIn PDF document text
    • http://tinivoze.22web.org/cerebral_angiography_book.pdfIn PDF document text
    • http://pitushok.fun/candy_crush_soda_saga_download_for_maccjnq5.pdfIn PDF document text
    • https://gakewejodum.weebly.com/uploads/1/3/4/9/134902465/9600066.pdfIn PDF document text
    • https://xixebume.weebly.com/uploads/1/3/0/9/130969831/159e9.pdfIn PDF document text
    • https://lifexusubanipi.weebly.com/uploads/1/3/4/3/134377686/0836582a4e.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/nonipesikiri/92724998494.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/69108777945.pdfIn PDF document text
    • http://lubuzasoxevixan.epizy.com/xerox_altalink_b8045_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/kahoot_select_multiple_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/michelle_obama_biography_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/93030670527.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/pavane_faure_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/36684018060.pdfIn PDF document text
    • http://vatekovinewuwa.epizy.com/lukiwigufudotedamawij.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/1337242382.pdfIn PDF document text
    • http://zisafaziga.epizy.com/destiny_chalice_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/filme_adrenalina_3_dublado.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCA 5412 bytes
SHA-256: dafac40d1e87230079c937db76bbb5280ca1bef0f6c6a2d242ffdd41047caa88
font_01_sfnt_off0000ef52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF52 10488 bytes
SHA-256: 966676ba0f112c9b948786702c5abe2e66033f6fee479153fca0eca37545466f

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