Malicious PDF — malware analysis report

Static analysis result for SHA-256 c945ed0b3feb06ef…

MALICIOUS

PDF

71.5 KB Created: 2021-02-20 06:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 83a60321773d419867e0571e999712e6 SHA-1: a2cb0a51c996b0162106d69ee8bc5b2310658189 SHA-256: c945ed0b3feb06ef126d0c823725f57a89773d032e93317ca06c152f1c59d2de
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=ultimate+tennis+apk+obb PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4475875/normal_5ffff964c75ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417817/normal_60029dade9519.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495684/normal_601fb7784cd27.pdfIn PDF document text
    • https://cdn.sqhk.co/ragojagef/jbdxPXB/jepofozuzifazigokeleji.pdfIn PDF document text
    • https://cdn.sqhk.co/mubikidom/e6geXic/jelox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452608/normal_6020f91b01be1.pdfIn PDF document text
    • https://cdn.sqhk.co/kafexobesa/diilhbV/scentsy_consultant_faq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464862/normal_5fff6264cfdc7.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/zafijukopa/machinarium_2_game.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/50150075216.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/community_helpers_worksheet_for_grade_2.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/xarekimo.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/77841763529.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_off0000dd24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD24 5064 bytes
SHA-256: 8f0361a42a1fe1010b07d722e1a23d10ac6191d936ed952b2237e754761298d3
font_01_sfnt_off0000ee49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE49 10152 bytes
SHA-256: 7eeab96bea2a5b30fbf7e13142c729010bbbaab7c1e510789efb4bfbc787849e