Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b76e8aeddc3dd24…

MALICIOUS

PDF

69.4 KB Created: 2021-03-03 07:35:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cb8a3f494665b11df3e12ddd8130ea67 SHA-1: 35dd7db5b26303820e5a0ac5289a130c8f063370 SHA-256: 2b76e8aeddc3dd24dd13022ab18efd0af4ef171ba819084926fe0c9db978d38c
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://leonvi.ru/award?keyword=gm+diet+plan+for+weight+loss+in+telugu PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4483587/normal_6009d7d1ac505.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375194/normal_5feb0ac1b030b.pdfIn PDF document text
    • https://kaledawuvilef.weebly.com/uploads/1/3/4/7/134727412/nobidon-kurawadenidax-kewipolesawaf-juzamajuzuxul.pdfIn PDF document text
    • https://cdn.sqhk.co/tegatiwuwax/ghchhjg/air_hockey_pucks.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443608/normal_60176b9d6b2e0.pdfIn PDF document text
    • http://powajaxib.medianewsonline.com/zajisepexesumajegafi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421200/normal_6030dcc820abb.pdfIn PDF document text
    • https://tuboxivodase.weebly.com/uploads/1/3/4/3/134387713/josuzedokobol_maketozesafij_bagezevosum_womumofinufebar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426416/normal_5ffb5a4c267dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380522/normal_5ffbb9a73f747.pdfIn PDF document text
    • http://tezoxefakalexo.sportsontheweb.net/wazibofikalamesibuxolej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/taguxif/item_analysis_template_for_teachers.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/falagurowabe.pdfIn PDF document text
    • http://nozozuwovore.atwebpages.com/fadudiwe.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/peminujuturama.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/65932952910.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c688.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC688 5460 bytes
SHA-256: 9da3b92b1c5ebdd23ee9782d686d6a488bae865194521612eae73478d2b8e5db
font_01_sfnt_off0000d902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD902 9812 bytes
SHA-256: 070f202fae1c707c364bf5f2b9ddc13d8d49a0d27acf30949982c8016cc1401f
font_02_sfnt_off0000fa81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA81 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34