Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b332ff3de2b1705…

MALICIOUS

PDF

70.6 KB Created: 2021-02-16 08:43:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2133220b411f668e6bd1e133c5df4f04 SHA-1: 24b52bf87f17d8d1217039c3097c519165b01927 SHA-256: 8b332ff3de2b17059027bff6dc8425a182c8310431fe6193e650eddfa47c765f
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://jacksth.ru/wix?keyword=sonic+2020+full+movie+watch+online+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458421/normal_601d1af5393c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412170/normal_6015b96f1dee5.pdfIn PDF document text
    • http://tepuragebu.iblogger.org/kavarekiwefazibevite.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499995/normal_6022cb889974d.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/igh6ier/dixazozavumifadagikinuje.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485689/normal_5fc9195c5a74e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501380/normal_5fe233ff758e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450506/normal_5fe2b61973272.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372983/normal_5fe1340b4bdb8.pdfIn PDF document text
    • https://cdn.sqhk.co/walumupo/ghsWMBi/61446680719.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392237/normal_6026b0d3628c1.pdfIn PDF document text
    • http://idealica-uficiale.website/ziridijiancqc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479679/normal_6004ef1941148.pdfIn PDF document text
    • http://flipping-car.online/zuxebad7dyfb.pdfIn PDF document text
    • http://easycreditscore.info/84784783670ol64v.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489054/normal_6009a90886ce2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://godarujugil.rf.gd/banupudavisonemogojib.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c94e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC94E 5356 bytes
SHA-256: d4e3f4da94003136d7dfd9c20fa8a9a650cc1fc7d15b639a39012c350cc1d023
font_01_sfnt_off0000db56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB56 10348 bytes
SHA-256: 84165f25cdd094eda3c19e7bea3278bf0188c38d16cd5532f5b99b77bae0bcfa
font_02_sfnt_off0000fed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFED7 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34