Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0e28dc4c9d2088c…

MALICIOUS

PDF

75.8 KB Created: 2021-02-11 02:28:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c91bcbb0cc411480dfed52d30e3662a7 SHA-1: b55aa85d794344a54c62caed3664cb67dccef6f3 SHA-256: e0e28dc4c9d2088c9bdd36e3592281511304f578910972194e84e1dc573c96c8
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://jottigo.ru/123?utm_term=law+of+the+garbage+truck+poem PDF link annotation
    • http://ag-management.space/big_bus_las_vegas_night_tour_phone_numberxet5m.pdfIn PDF document text
    • http://mon-cmso.best/talikivap4mqba.pdfIn PDF document text
    • http://slmit.space/suwakumotamovomunofkic.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384821/normal_6009663532577.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392237/normal_6016ebbb2a594.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464530/normal_5fc9cce31c91f.pdfIn PDF document text
    • http://legalvictory.group/rajakekajafereh1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374954/normal_5fe79f9d5248b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392451/normal_5fe07487c91a8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449793/normal_5ff4cd18db7c2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424692/normal_6005ff7250f84.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/zodawanuror/edit_documents_word_2003.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/webshop_template_blogger.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/gvim_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/cpcu_540_course_guide.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_off0000e6e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E8 5456 bytes
SHA-256: 1ae1fc578aea5fbb2834e7b3d7d527e7a5d04630c72897636cf7839c7deb85ba
font_01_sfnt_off0000f975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF975 13092 bytes
SHA-256: e166c1b5bb45ec9bd3a0a1c26c5c4cf4aeea659cb91008381dedac69909ea501