Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e093e62f73c1482…

MALICIOUS

PDF

71.0 KB Created: 2021-02-27 19:39:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a9d8cffbb2cb4ed1a089947aa1a89c58 SHA-1: d18d0ce405ef1de44f5b090cb6b0128303f9fe36 SHA-256: 6e093e62f73c1482d38f3062dff20e66da7fab3953bcb101e2d6000b9a444050
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=akai+xr20+tutorial PDF link annotation
    • http://tideparipawovu.mygamesonline.org/abit_ip35_pro_xeon.pdfIn PDF document text
    • http://tonemisi.medianewsonline.com/35336574833.pdfIn PDF document text
    • http://wirobigi.medianewsonline.com/27927095100.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366364/normal_5ff078f4b3f1f.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/dupula/98783504614.pdfIn PDF document text
    • http://zuputes.atwebpages.com/19534425817.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/63523504216.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/kylo_nifi_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/xosugupa.pdfIn PDF document text
    • http://wuzuruwevirelu.rf.gd/algebra_questions_for_grade_6.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/why_does_the_raven_only_say_nevermore.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_off0000dcfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFB 4896 bytes
SHA-256: 8bcec565b4a251e4b33d0e8519b3c10fc6188c8e360200d29d22355fdc6ea98b
font_01_sfnt_off0000edb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB9 10016 bytes
SHA-256: 44f960e8696d502185f68be9ff27b962063581ddf1732e413edd9be1e6c9e95c