Malicious PDF — malware analysis report

Static analysis result for SHA-256 14bcbe2220259a56…

MALICIOUS

PDF

72.5 KB Created: 2021-02-19 06:17:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2fa7d24734be677564b431efbc5962e3 SHA-1: f5ea5bf8f8134fe3458c2d8dbb79e90347bf68fc SHA-256: 14bcbe2220259a569964725dd4044a13cbf1efea934f58a98f4663bd74ab9d22
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=ayurvedic+urea+pills+amazon PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4468294/normal_602afa472114f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476946/normal_600cfc095201d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466379/normal_5fc5b1a1d02bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370063/normal_60250588d2e2e.pdfIn PDF document text
    • https://cdn.sqhk.co/xidafigutoxa/iiMgghj/lutatazajutokepupaboluvi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426063/normal_5fe50bf2a275a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368746/normal_600119132c70d.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/dobikasukavu/spring_jsp_format_number.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/prime_math_diagnostic_assessment.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/50948295826.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/cghs_card_form_edit.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/latuxuravem.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_off0000dbee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBEE 5420 bytes
SHA-256: e52ae65c5427bb0f20429d0a2eca31e83aa34f6f713a04f4658ceec43933606f
font_01_sfnt_off0000ee5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5A 11576 bytes
SHA-256: 831a1b4e93673e0cc57471d7a57e1ccc5d3d4fd85faea477513accd65582bb86