Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e05cc5120bf26eb…

MALICIOUS

PDF

69.4 KB Created: 2021-02-23 08:53:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9eb29344cc3d9e595399663970bdbab2 SHA-1: 8fe4ac043baef51b6ccecf8111aaeae8d9350bb2 SHA-256: 0e05cc5120bf26eb3a4e205692aa76388e0e7d3eab8a4b05ddbbf07a4599e9a2
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/wix?keyword=alexander+the+great+worksheets+free PDF link annotation
    • http://sellforce.ru/tamoludosatabupoxilubhmvv7.pdfIn PDF document text
    • https://kenufipafalenar.weebly.com/uploads/1/3/4/6/134616414/fujafof.pdfIn PDF document text
    • https://vamemaxodoj.weebly.com/uploads/1/3/1/4/131437173/4438023.pdfIn PDF document text
    • https://nukofagola.weebly.com/uploads/1/3/4/8/134883999/donefo-mitulule-fabuzigoxom.pdfIn PDF document text
    • https://vamalogobiw.weebly.com/uploads/1/3/4/6/134696595/wuvuselagikupu.pdfIn PDF document text
    • https://wukajimodowel.weebly.com/uploads/1/3/0/8/130874313/rogevanenopivuwapome.pdfIn PDF document text
    • http://ragukir.iblogger.org/free_software_blender_3d_full_version.pdfIn PDF document text
    • https://nudegono.weebly.com/uploads/1/3/4/6/134682657/3186034.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/what_are_complex_carbohydrates_definition2ulue.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/fedufiporara/75840563253.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/depression_and_anxiety_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/71656650690.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/waves_plugins_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/assessment_in_higher_education.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/newodixe.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/56356186655.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_off0000d360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD360 5380 bytes
SHA-256: baab14adf042f61d4db87669b2082ec3edb69dff8c6ae68bbbc0ef1c7fec5566
font_01_sfnt_off0000e5bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5BD 10288 bytes
SHA-256: 1e87d822dd31de8fc97eeedba266c302bca709a8c285a216a3e82379b0c19936

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