Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f088df3d7850bbb…

MALICIOUS

PDF

66.4 KB Created: 2021-02-27 11:41:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d12d4585fe7e9e094ec989334a3cb6e1 SHA-1: 181dc136c91ac40ff80b69d1546ab2ea5ea03d16 SHA-256: 6f088df3d7850bbbd1f66e7698dd13e4ab86bcb9fb4fa5a59e55b059d8c2c550
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://baarspo.ru/award?keyword=how+to+open+microsoft+wireless+mouse+5000 PDF link annotation
    • http://podcard2020.site/3080858255896wb7.pdfIn PDF document text
    • http://zuvels.xyz/vesesidejajir9611n.pdfIn PDF document text
    • http://karnaval.host/six_tales_from_shakespeare4ycbj.pdfIn PDF document text
    • https://somotudodij.weebly.com/uploads/1/3/4/6/134699902/loxedozagavasig-wifobuwumul-zonapunuje.pdfIn PDF document text
    • http://vvd.bar/harry_potter_and_half_blood_prince_full_movieiadr2.pdfIn PDF document text
    • http://xrootunited.com/the_standard_dental_insurance_employer_loginkniq0.pdfIn PDF document text
    • http://idealicait.website/ejemplo_de_informe_simple_de_trabajorhrft.pdfIn PDF document text
    • http://babbieshop.ru/detajevuwunenativelovu3003t.pdfIn PDF document text
    • http://bahis-sikayet.com/metal_slug_6_arcade_cabinetsmsih.pdfIn PDF document text
    • https://birugenok.weebly.com/uploads/1/3/4/6/134632973/talubot_mazotagozenoji.pdfIn PDF document text
    • http://hotita.space/ruguteramexogilazotovopaxdi4ex.pdfIn PDF document text
    • http://terem.space/vowidakokixepbtucc.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/firudegix/zowunoromubajitikaj.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/adtm_full_form.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/brothers_in_arms_apk_data_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/wakuzidi/highlights_hidden_pictures_worksheets.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_off0000c991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC991 5272 bytes
SHA-256: 096e0f1a545a02e8aecf878e67bd6b17b7f835ea3fa10694bc68a6a8f648fb9f
font_01_sfnt_off0000db80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB80 9720 bytes
SHA-256: 9cec8a30fe03631d335cbe4c4e8eb7ed2ecc8585f37ab20f4548a904b4ca4a78